ComboBox 類別

定義

表示 Windows 下拉式方塊控制項。Represents a Windows combo box control.

public ref class ComboBox : System::Windows::Forms::ListControl
[System.ComponentModel.DefaultBindingProperty("Text")]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDispatch)]
public class ComboBox : System.Windows.Forms.ListControl
type ComboBox = class
    inherit ListControl
Public Class ComboBox
Inherits ListControl
繼承
衍生
屬性

範例

下列程式碼範例是一個完整的應用程式,示範如何使用 Add 方法將專案新增至 ComboBoxFindString 方法來尋找 ComboBox中的專案,以及 BeginUpdateEndUpdate 方法以有效率地新增大量數位ComboBox的專案。The following code example is a complete application showing how you can use the Add method to add items to a ComboBox, the FindString method to find items in a ComboBox, and the BeginUpdate and EndUpdate methods to efficiently add a large number items to a ComboBox. 儲存與顯示文字不同的值的功能會繼承自 ListControlThe ability to store values that are different from displayed text is inherited from ListControl. 如需如何使用這項功能的範例,請參閱 ListControl 類別。For an example of how to use this feature, see the ListControl class.

您必須加入 System.DrawingSystem.Windows.Forms 命名空間的參考,才能執行此範例。You must add references to the System.Drawing and System.Windows.Forms namespaces to run this example.

#using <System.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>

using namespace System;
using namespace System::Windows::Forms;

namespace Win32Form1Namespace
{
   public ref class Win32Form1: public System::Windows::Forms::Form
   {
   private:
      System::Windows::Forms::Button^ addButton;
      System::Windows::Forms::TextBox^ textBox2;
      System::Windows::Forms::Button^ addGrandButton;
      System::Windows::Forms::ComboBox^ comboBox1;
      System::Windows::Forms::Button^ showSelectedButton;
      System::Windows::Forms::TextBox^ textBox1;
      System::Windows::Forms::Button^ findButton;
      System::Windows::Forms::Label ^ label1;

   public:
      Win32Form1()
      {
         this->InitializeComponent();
      }

   private:
      void InitializeComponent()
      {
         this->addButton = gcnew System::Windows::Forms::Button;
         this->textBox2 = gcnew System::Windows::Forms::TextBox;
         this->addGrandButton = gcnew System::Windows::Forms::Button;
         this->comboBox1 = gcnew System::Windows::Forms::ComboBox;
         this->showSelectedButton = gcnew System::Windows::Forms::Button;
         this->textBox1 = gcnew System::Windows::Forms::TextBox;
         this->findButton = gcnew System::Windows::Forms::Button;
         this->label1 = gcnew System::Windows::Forms::Label;
         this->addButton->Location = System::Drawing::Point( 248, 32 );
         this->addButton->Size = System::Drawing::Size( 40, 24 );
         this->addButton->TabIndex = 1;
         this->addButton->Text = "Add";
         this->addButton->Click += gcnew System::EventHandler(
            this, &Win32Form1::addButton_Click );
         this->textBox2->Location = System::Drawing::Point( 8, 64 );
         this->textBox2->Size = System::Drawing::Size( 232, 20 );
         this->textBox2->TabIndex = 6;
         this->textBox2->Text = "";
         this->addGrandButton->Location = System::Drawing::Point( 8, 96 );
         this->addGrandButton->Size = System::Drawing::Size( 280, 23 );
         this->addGrandButton->TabIndex = 2;
         this->addGrandButton->Text = "Add 1, 000 Items";
         this->addGrandButton->Click += gcnew System::EventHandler(
            this, &Win32Form1::addGrandButton_Click );
         this->comboBox1->Anchor = (System::Windows::Forms::AnchorStyles)(
            (System::Windows::Forms::AnchorStyles::Bottom | System::Windows::Forms::AnchorStyles::Left) |
             System::Windows::Forms::AnchorStyles::Right);
         this->comboBox1->DropDownWidth = 280;
         array<Object^>^ objectArray = {"Item 1",
            "Item 2",
            "Item 3",
            "Item 4",
            "Item 5"};
         this->comboBox1->Items->AddRange( objectArray );
         this->comboBox1->Location = System::Drawing::Point( 8, 248 );
         this->comboBox1->Size = System::Drawing::Size( 280, 21 );
         this->comboBox1->TabIndex = 7;
         this->showSelectedButton->Location = System::Drawing::Point( 8, 128 );
         this->showSelectedButton->Size = System::Drawing::Size( 280, 24 );
         this->showSelectedButton->TabIndex = 4;
         this->showSelectedButton->Text = "What Item is Selected?";
         this->showSelectedButton->Click += gcnew System::EventHandler( 
            this, &Win32Form1::showSelectedButton_Click );
         this->textBox1->Location = System::Drawing::Point( 8, 32 );
         this->textBox1->Size = System::Drawing::Size( 232, 20 );
         this->textBox1->TabIndex = 5;
         this->textBox1->Text = "";
         this->findButton->Location = System::Drawing::Point( 248, 64 );
         this->findButton->Size = System::Drawing::Size( 40, 24 );
         this->findButton->TabIndex = 3;
         this->findButton->Text = "Find";
         this->findButton->Click += gcnew System::EventHandler( 
            this, &Win32Form1::findButton_Click );
         this->label1->Location = System::Drawing::Point( 8, 224 );
         this->label1->Size = System::Drawing::Size( 144, 23 );
         this->label1->TabIndex = 0;
         this->label1->Text = "Test ComboBox";
         this->ClientSize = System::Drawing::Size( 292, 273 );
         array<System::Windows::Forms::Control^>^ controlsArray = {this->comboBox1,
            this->textBox2,
            this->textBox1,
            this->showSelectedButton,
            this->findButton,
            this->addGrandButton,
            this->addButton,
            this->label1};
         this->Controls->AddRange( controlsArray );
         this->Text = "ComboBox Sample";
      }

      void addButton_Click( Object^ sender, System::EventArgs^ e )
      {
         comboBox1->Items->Add( textBox1->Text );
      }

      void addGrandButton_Click( Object^ sender, System::EventArgs^ e )
      {
         comboBox1->BeginUpdate();
         for ( int i = 0; i < 1000; i++ )
         {
            comboBox1->Items->Add( "Item 1 " + i.ToString() );

         }
         comboBox1->EndUpdate();
      }

      void findButton_Click( Object^ sender, System::EventArgs^ e )
      {
         int index = comboBox1->FindString( textBox2->Text );
         comboBox1->SelectedIndex = index;
      }

      void showSelectedButton_Click( Object^ sender, System::EventArgs^ e )
      {
         int selectedIndex = comboBox1->SelectedIndex;
         Object^ selectedItem = comboBox1->SelectedItem;
         MessageBox::Show( "Selected Item Text: " + selectedItem->ToString() + "\n" +
            "Index: " + selectedIndex.ToString() );
      }
   };
}


[System::STAThreadAttribute]
int main()
{
   System::Windows::Forms::Application::Run( gcnew Win32Form1Namespace::Win32Form1 );
}
using System;
using System.Windows.Forms;

namespace Win32Form1Namespace {
    
    
    public class Win32Form1 : System.Windows.Forms.Form {
        private System.Windows.Forms.Button addButton;
        private System.Windows.Forms.TextBox textBox2;
        private System.Windows.Forms.Button addGrandButton;
        private System.Windows.Forms.ComboBox comboBox1;
        private System.Windows.Forms.Button showSelectedButton;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button findButton;
        private System.Windows.Forms.Label label1;
        
        public Win32Form1() {
            this.InitializeComponent();
        }
        
        [System.STAThreadAttribute()]
        public static void Main() {
            System.Windows.Forms.Application.Run(new Win32Form1());
        }
        
        private void InitializeComponent() {
            this.addButton = new System.Windows.Forms.Button();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.addGrandButton = new System.Windows.Forms.Button();
            this.comboBox1 = new System.Windows.Forms.ComboBox();
            this.showSelectedButton = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.findButton = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.addButton.Location = new System.Drawing.Point(248, 32);
            this.addButton.Size = new System.Drawing.Size(40, 24);
            this.addButton.TabIndex = 1;
            this.addButton.Text = "Add";
            this.addButton.Click += new System.EventHandler(this.addButton_Click);
            this.textBox2.Location = new System.Drawing.Point(8, 64);
            this.textBox2.Size = new System.Drawing.Size(232, 20);
            this.textBox2.TabIndex = 6;
            this.textBox2.Text = "";
            this.addGrandButton.Location = new System.Drawing.Point(8, 96);
            this.addGrandButton.Size = new System.Drawing.Size(280, 23);
            this.addGrandButton.TabIndex = 2;
            this.addGrandButton.Text = "Add 1,000 Items";
            this.addGrandButton.Click += new System.EventHandler(this.addGrandButton_Click);
            this.comboBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) 
                        | System.Windows.Forms.AnchorStyles.Right);
            this.comboBox1.DropDownWidth = 280;
            this.comboBox1.Items.AddRange(new object[] {"Item 1",
                        "Item 2",
                        "Item 3",
                        "Item 4",
                        "Item 5"});
            this.comboBox1.Location = new System.Drawing.Point(8, 248);
            this.comboBox1.Size = new System.Drawing.Size(280, 21);
            this.comboBox1.TabIndex = 7;
            this.showSelectedButton.Location = new System.Drawing.Point(8, 128);
            this.showSelectedButton.Size = new System.Drawing.Size(280, 24);
            this.showSelectedButton.TabIndex = 4;
            this.showSelectedButton.Text = "What Item is Selected?";
            this.showSelectedButton.Click += new System.EventHandler(this.showSelectedButton_Click);
            this.textBox1.Location = new System.Drawing.Point(8, 32);
            this.textBox1.Size = new System.Drawing.Size(232, 20);
            this.textBox1.TabIndex = 5;
            this.textBox1.Text = "";
            this.findButton.Location = new System.Drawing.Point(248, 64);
            this.findButton.Size = new System.Drawing.Size(40, 24);
            this.findButton.TabIndex = 3;
            this.findButton.Text = "Find";
            this.findButton.Click += new System.EventHandler(this.findButton_Click);
            this.label1.Location = new System.Drawing.Point(8, 224);
            this.label1.Size = new System.Drawing.Size(144, 23);
            this.label1.TabIndex = 0;
            this.label1.Text = "Test ComboBox";
            this.ClientSize = new System.Drawing.Size(292, 273);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {this.comboBox1,
                        this.textBox2,
                        this.textBox1,
                        this.showSelectedButton,
                        this.findButton,
                        this.addGrandButton,
                        this.addButton,
                        this.label1});
            this.Text = "ComboBox Sample";
        }
        
        private void addButton_Click(object sender, System.EventArgs e) {
           comboBox1.Items.Add(textBox1.Text);
        }

        private void addGrandButton_Click(object sender, System.EventArgs e) {
            comboBox1.BeginUpdate();
            for (int i = 0; i < 1000; i++) {
                comboBox1.Items.Add("Item 1" + i.ToString());
            }
            comboBox1.EndUpdate();
        }

        private void findButton_Click(object sender, System.EventArgs e) {
            int index = comboBox1.FindString(textBox2.Text);
            comboBox1.SelectedIndex = index;
        }

        private void showSelectedButton_Click(object sender, System.EventArgs e) {
            int selectedIndex = comboBox1.SelectedIndex;
            Object selectedItem = comboBox1.SelectedItem;

            MessageBox.Show("Selected Item Text: " + selectedItem.ToString() + "\n" +
                            "Index: " + selectedIndex.ToString());
        }
    }
}
Imports System.Windows.Forms

Namespace ComboBoxSampleNamespace

    Public Class ComboBoxSample
        Inherits System.Windows.Forms.Form

        Private addButton As System.Windows.Forms.Button
        Private textBox2 As System.Windows.Forms.TextBox
        Private addGrandButton As System.Windows.Forms.Button
        Private comboBox1 As System.Windows.Forms.ComboBox
        Private showSelectedButton As System.Windows.Forms.Button
        Private textBox1 As System.Windows.Forms.TextBox
        Private findButton As System.Windows.Forms.Button
        Private label1 As System.Windows.Forms.Label

        Public Sub New()
            MyBase.New()
            Me.InitializeComponent()
        End Sub

        <System.STAThreadAttribute()> Public Shared Sub Main()
            System.Windows.Forms.Application.Run(New ComboBoxSample())
        End Sub

        Private Sub InitializeComponent()
            Me.addButton = New System.Windows.Forms.Button()
            Me.textBox2 = New System.Windows.Forms.TextBox()
            Me.addGrandButton = New System.Windows.Forms.Button()
            Me.comboBox1 = New System.Windows.Forms.ComboBox()
            Me.showSelectedButton = New System.Windows.Forms.Button()
            Me.textBox1 = New System.Windows.Forms.TextBox()
            Me.findButton = New System.Windows.Forms.Button()
            Me.label1 = New System.Windows.Forms.Label()
            Me.addButton.Location = New System.Drawing.Point(248, 32)
            Me.addButton.Size = New System.Drawing.Size(40, 24)
            Me.addButton.TabIndex = 1
            Me.addButton.Text = "Add"
            AddHandler Me.addButton.Click, AddressOf Me.addButton_Click
            Me.textBox2.Location = New System.Drawing.Point(8, 64)
            Me.textBox2.Size = New System.Drawing.Size(232, 20)
            Me.textBox2.TabIndex = 6
            Me.textBox2.Text = ""
            Me.addGrandButton.Location = New System.Drawing.Point(8, 96)
            Me.addGrandButton.Size = New System.Drawing.Size(280, 23)
            Me.addGrandButton.TabIndex = 2
            Me.addGrandButton.Text = "Add 1,000 Items"
            AddHandler Me.addGrandButton.Click, AddressOf Me.addGrandButton_Click
            Me.comboBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Left) _
                        Or System.Windows.Forms.AnchorStyles.Right)
            Me.comboBox1.DropDownWidth = 280
            Me.comboBox1.Items.AddRange(New Object() {"Item 1", "Item 2", "Item 3", "Item 4", "Item 5"})
            Me.comboBox1.Location = New System.Drawing.Point(8, 248)
            Me.comboBox1.Size = New System.Drawing.Size(280, 21)
            Me.comboBox1.TabIndex = 7
            Me.showSelectedButton.Location = New System.Drawing.Point(8, 128)
            Me.showSelectedButton.Size = New System.Drawing.Size(280, 24)
            Me.showSelectedButton.TabIndex = 4
            Me.showSelectedButton.Text = "What Item is Selected?"
            AddHandler Me.showSelectedButton.Click, AddressOf Me.showSelectedButton_Click
            Me.textBox1.Location = New System.Drawing.Point(8, 32)
            Me.textBox1.Size = New System.Drawing.Size(232, 20)
            Me.textBox1.TabIndex = 5
            Me.textBox1.Text = ""
            Me.findButton.Location = New System.Drawing.Point(248, 64)
            Me.findButton.Size = New System.Drawing.Size(40, 24)
            Me.findButton.TabIndex = 3
            Me.findButton.Text = "Find"
            AddHandler Me.findButton.Click, AddressOf Me.findButton_Click
            Me.label1.Location = New System.Drawing.Point(8, 224)
            Me.label1.Size = New System.Drawing.Size(144, 23)
            Me.label1.TabIndex = 0
            Me.label1.Text = "Test ComboBox"
            Me.ClientSize = New System.Drawing.Size(292, 273)
            Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.comboBox1, Me.textBox2, Me.textBox1, Me.showSelectedButton, Me.findButton, Me.addGrandButton, Me.addButton, Me.label1})
            Me.Text = "ComboBox Sample"
        End Sub

        Private Sub addButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
            comboBox1.Items.Add(textBox1.Text)
        End Sub

        Private Sub findButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
            Dim index As Integer
            index = comboBox1.FindString(textBox2.Text)
            comboBox1.SelectedIndex = index
        End Sub

        Private Sub addGrandButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
            comboBox1.BeginUpdate()
            Dim I As Integer
            For I = 0 To 1000
                comboBox1.Items.Add("Item 1" + i.ToString())
            Next
            comboBox1.EndUpdate()
        End Sub

        Private Sub showSelectedButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
            Dim selectedIndex As Integer
            selectedIndex = comboBox1.SelectedIndex
            Dim selectedItem As Object
            selectedItem = comboBox1.SelectedItem

            MessageBox.Show("Selected Item Text: " & selectedItem.ToString() & Microsoft.VisualBasic.Constants.vbCrLf & _
                                "Index: " & selectedIndex.ToString())
        End Sub
    End Class
End Namespace

備註

ComboBox 會顯示與 ListBox結合的文字方塊,讓使用者可以從清單中選取專案,或輸入新的值。A ComboBox displays a text box combined with a ListBox, which enables the user to select items from the list or enter a new value.

[DropDownStyle] 屬性會指定清單是否一律顯示,或清單是否顯示在下拉式清單中。The DropDownStyle property specifies whether the list is always displayed or whether the list is displayed in a drop-down. DropDownStyle 屬性也會指定是否可以編輯文字部分。The DropDownStyle property also specifies whether the text portion can be edited. 如需可用的設定及其效果,請參閱 ComboBoxStyleSee ComboBoxStyle for the available settings and their effects. 沒有任何設定可一律顯示清單,不允許輸入新的值。There is no setting to always display the list and disallow entering a new value. 若要顯示無法加入任何新值的清單,請使用 ListBox 控制項。To display a list to which no new values can be added, use a ListBox control.

若要在執行時間于清單中加入或移除物件,請使用 ComboBox.ObjectCollection 類別的方法(透過 ComboBoxItems 屬性)。To add or remove objects in the list at run time, use methods of the ComboBox.ObjectCollection class (through the Items property of the ComboBox). 您可以使用 AddRange 方法來指派物件參考的陣列。You can assign an array of object references with the AddRange method. 然後,此清單會顯示每個物件的預設字串值。The list then displays the default string value for each object. 您可以使用 Add 方法來新增個別的物件。You can add individual objects with the Add method. 您可以使用 Remove 方法刪除專案,或使用 Clear 方法清除整個清單。You can delete items with the Remove method or clear the entire list with the Clear method.

除了顯示和選取功能之外,ComboBox 也提供一些功能,讓您可以有效率地將專案新增至 ComboBox,以及尋找清單專案內的文字。In addition to display and selection functionality, the ComboBox also provides features that enable you to efficiently add items to the ComboBox and to find text within the items of the list. 使用 BeginUpdateEndUpdate 方法,您可以將大量專案新增至 ComboBox,而不會在每次將專案新增至清單時重新繪製控制項。With the BeginUpdate and EndUpdate methods, you can add a large number of items to the ComboBox without the control being repainted each time an item is added to the list. FindStringFindStringExact 方法可讓您在清單中搜尋包含特定搜尋字串的專案。The FindString and FindStringExact methods enable you to search for an item in the list that contains a specific search string.

您可以使用這些屬性來管理清單中目前選取的專案、Text 屬性來指定要在編輯欄位中顯示的字串、取得或設定目前專案的 SelectedIndex 屬性,以及用來取得或設定參考的 SelectedItem 屬性目標.You can use these properties to manage the currently selected item in the list, the Text property to specify the string displayed in the editing field, the SelectedIndex property to get or set the current item, and the SelectedItem property to get or set a reference to the object.

注意

如果基底 Windows Forms 頁面上有 ListBoxComboBoxCheckedListBox,而且想要以衍生的形式修改這些控制項的字串集合,則基底表單中這些控制項的字串集合必須是空的。If you have a ListBox, ComboBox, or CheckedListBox on a base Windows Forms page and want to modify the string collections of those controls in a derived form, the string collections of those controls in the base form must be empty. 如果字串集合不是空的,當您衍生另一個表單時,它們會變成隻讀。If the string collections are not empty, they become read-only when you derive another form.

建構函式

ComboBox()

初始化 ComboBox 類別的新執行個體。Initializes a new instance of the ComboBox class.

屬性

AccessibilityObject

取得指定給控制項的 AccessibleObjectGets the AccessibleObject assigned to the control.

(繼承來源 Control)
AccessibleDefaultActionDescription

取得或設定協助用戶端應用程式所使用的控制項的預設動作描述。Gets or sets the default action description of the control for use by accessibility client applications.

(繼承來源 Control)
AccessibleDescription

取得或設定協助工具用戶端應用程式使用之控制項的描述。Gets or sets the description of the control used by accessibility client applications.

(繼承來源 Control)
AccessibleName

取得或設定協助工具用戶端應用程式使用的控制項名稱。Gets or sets the name of the control used by accessibility client applications.

(繼承來源 Control)
AccessibleRole

取得或設定控制項的可存取角色。Gets or sets the accessible role of the control.

(繼承來源 Control)
AllowDrop

取得或設定值,指出控制項是否能接受使用者拖放上來的資料。Gets or sets a value indicating whether the control can accept data that the user drags onto it.

(繼承來源 Control)
AllowSelection

取得值,指出此清單是否啟用清單項目的選取。Gets a value indicating whether the list enables selection of list items.

(繼承來源 ListControl)
Anchor

取得或設定控制項繫結至的容器邊緣,並決定控制項隨其父代重新調整大小的方式。Gets or sets the edges of the container to which a control is bound and determines how a control is resized with its parent.

(繼承來源 Control)
AutoCompleteCustomSource

取得或設定當 AutoCompleteSource 屬性設定為 CustomSource 時所使用的自訂 StringCollectionGets or sets a custom StringCollection to use when the AutoCompleteSource property is set to CustomSource.

AutoCompleteMode

取得或設定選項,控制如何在 ComboBox 中使用自動完成。Gets or sets an option that controls how automatic completion works for the ComboBox.

AutoCompleteSource

取得或設定值,以指定用於自動完成的完整字串來源。Gets or sets a value specifying the source of complete strings used for automatic completion.

AutoScrollOffset

取得或設定此控制項在 ScrollControlIntoView(Control) 中要捲動到哪一個位置。Gets or sets where this control is scrolled to in ScrollControlIntoView(Control).

(繼承來源 Control)
AutoSize

這個屬性與這個類別無關。This property is not relevant for this class.

(繼承來源 Control)
BackColor

取得或設定控制項的背景色彩。Gets or sets the background color for the control.

BackgroundImage

這個屬性與這個類別無關。This property is not relevant to this class.

BackgroundImageLayout

取得或設定在 ImageLayout 列舉類型中所定義的背景影像配置。Gets or sets the background image layout as defined in the ImageLayout enumeration.

BindingContext

取得或設定控制項的 BindingContextGets or sets the BindingContext for the control.

(繼承來源 Control)
Bottom

取得控制項下邊緣和其容器工作區 (Client Area) 上邊緣之間的距離 (單位為像素)。Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.

(繼承來源 Control)
Bounds

取得或設定控制項 (包括其非工作區項目) 相對於父控制項之大小和位置 (單位為像素)。Gets or sets the size and location of the control including its nonclient elements, in pixels, relative to the parent control.

(繼承來源 Control)
CanEnableIme

取得值,這個值表示 ImeMode 屬性是否可以設定為使用中的值,以啟用 IME 支援。Gets a value indicating whether the ImeMode property can be set to an active value, to enable IME support.

(繼承來源 Control)
CanFocus

取得指示控制項是否能取得焦點的值。Gets a value indicating whether the control can receive focus.

(繼承來源 Control)
CanRaiseEvents

判斷是否可以在控制項上引發事件。Determines if events can be raised on the control.

(繼承來源 Control)
CanSelect

取得指示能否選取控制項的值。Gets a value indicating whether the control can be selected.

(繼承來源 Control)
Capture

取得或設定值,指出控制項是否捕捉住滑鼠。Gets or sets a value indicating whether the control has captured the mouse.

(繼承來源 Control)
CausesValidation

取得或設定值,指出控制項取得焦點時,是否會在任何需要驗證的控制項上執行驗證。Gets or sets a value indicating whether the control causes validation to be performed on any controls that require validation when it receives focus.

(繼承來源 Control)
ClientRectangle

取得表示控制項工作區的矩形。Gets the rectangle that represents the client area of the control.

(繼承來源 Control)
ClientSize

取得或設定控制項工作區的高度和寬度。Gets or sets the height and width of the client area of the control.

(繼承來源 Control)
CompanyName

取得包含控制項之應用程式的公司名稱或建立者。Gets the name of the company or creator of the application containing the control.

(繼承來源 Control)
Container

取得包含 IContainerComponentGets the IContainer that contains the Component.

(繼承來源 Component)
ContainsFocus

取得指示控制項 (或其子控制項之一) 目前是否擁有輸入焦點的值。Gets a value indicating whether the control, or one of its child controls, currently has the input focus.

(繼承來源 Control)
ContextMenu

取得或設定與控制項關聯的捷徑功能表。Gets or sets the shortcut menu associated with the control.

(繼承來源 Control)
ContextMenuStrip

取得或設定與這個控制項相關的 ContextMenuStripGets or sets the ContextMenuStrip associated with this control.

(繼承來源 Control)
Controls

取得控制項中包含的控制項集合。Gets the collection of controls contained within the control.

(繼承來源 Control)
Created

取得值,指出是否已經建立控制項。Gets a value indicating whether the control has been created.

(繼承來源 Control)
CreateParams

建立控制代碼時,取得必要的建立參數。Gets the required creation parameters when the control handle is created.

Cursor

取得或設定滑鼠指標移至控制項上時顯示的游標。Gets or sets the cursor that is displayed when the mouse pointer is over the control.

(繼承來源 Control)
DataBindings

取得控制項的資料繫結 (Data Binding)。Gets the data bindings for the control.

(繼承來源 Control)
DataManager

取得與這個控制項相關的 CurrencyManagerGets the CurrencyManager associated with this control.

(繼承來源 ListControl)
DataSource

取得或設定這個 ComboBox 的資料來源。Gets or sets the data source for this ComboBox.

DefaultCursor

取得或設定控制項的預設游標。Gets or sets the default cursor for the control.

(繼承來源 Control)
DefaultImeMode

取得控制項支援的預設輸入法 (IME) 模式。Gets the default Input Method Editor (IME) mode supported by the control.

(繼承來源 Control)
DefaultMargin

取得控制項之間的預設指定間距 (單位為像素)。Gets the space, in pixels, that is specified by default between controls.

(繼承來源 Control)
DefaultMaximumSize

取得指定為控制項的預設大小之最大值的長度和高度 (單位為像素)。Gets the length and height, in pixels, that is specified as the default maximum size of a control.

(繼承來源 Control)
DefaultMinimumSize

取得指定為控制項的預設大小之最小值的長度和高度 (單位為像素)。Gets the length and height, in pixels, that is specified as the default minimum size of a control.

(繼承來源 Control)
DefaultPadding

取得控制項內容的內部間距 (單位為像素)。Gets the internal spacing, in pixels, of the contents of a control.

(繼承來源 Control)
DefaultSize

取得控制項的預設大小。Gets the default size of the control.

DesignMode

取得值,指出 Component 目前是否處於設計模式。Gets a value that indicates whether the Component is currently in design mode.

(繼承來源 Component)
DeviceDpi

取得目前顯示控制項的顯示裝置的 DPI 值。Gets the DPI value for the display device where the control is currently being displayed.

(繼承來源 Control)
DisplayMember

取得或設定要針對這個 ListControl 顯示的屬性。Gets or sets the property to display for this ListControl.

(繼承來源 ListControl)
DisplayRectangle

取得表示控制項顯示區域的矩形。Gets the rectangle that represents the display area of the control.

(繼承來源 Control)
Disposing

取得值,指出基底 Control 類別是否正在處置的過程中。Gets a value indicating whether the base Control class is in the process of disposing.

(繼承來源 Control)
Dock

取得或設定停駐在其父控制項的控制項框線,並決定控制項隨其父代重新調整大小的方式。Gets or sets which control borders are docked to its parent control and determines how a control is resized with its parent.

(繼承來源 Control)
DoubleBuffered

取得或設定值,指出這個控制項是否應使用次要緩衝區重繪其介面,以減少或防止重繪閃動 (Flicker)。Gets or sets a value indicating whether this control should redraw its surface using a secondary buffer to reduce or prevent flicker.

(繼承來源 Control)
DrawMode

取得或設定值,指出您的程式碼或作業系統是否將會處理清單中項目的繪圖。Gets or sets a value indicating whether your code or the operating system will handle drawing of elements in the list.

DropDownHeight

取得或設定 ComboBox 下拉部分的高度 (以像素為單位)。Gets or sets the height in pixels of the drop-down portion of the ComboBox.

DropDownStyle

取得或設定指定下拉式方塊樣式的值。Gets or sets a value specifying the style of the combo box.

DropDownWidth

取得或設定下拉式方塊下拉部分的寬度。Gets or sets the width of the of the drop-down portion of a combo box.

DroppedDown

取得或設定值,指出下拉式方塊是否正顯示它的下拉部分。Gets or sets a value indicating whether the combo box is displaying its drop-down portion.

Enabled

取得或設定值,指出控制項是否可回應使用者互動。Gets or sets a value indicating whether the control can respond to user interaction.

(繼承來源 Control)
Events

取得附加在這個 Component 上的事件處理常式清單。Gets the list of event handlers that are attached to this Component.

(繼承來源 Component)
FlatStyle

取得或設定 ComboBox 的外觀。Gets or sets the appearance of the ComboBox.

Focused

取得值,表示焦點是否在 ComboBoxGets a value indicating whether the ComboBox has focus.

Font

取得或設定控制項顯示之文字字型。Gets or sets the font of the text displayed by the control.

(繼承來源 Control)
FontHeight

取得或設定控制項字型的高度。Gets or sets the height of the font of the control.

(繼承來源 Control)
ForeColor

取得或設定控制項的前景色彩。Gets or sets the foreground color of the control.

FormatInfo

取得或設定提供自訂格式化行為的 IFormatProviderGets or sets the IFormatProvider that provides custom formatting behavior.

(繼承來源 ListControl)
FormatString

取得或設定格式規範字元,表示要如何顯示值。Gets or sets the format-specifier characters that indicate how a value is to be displayed.

(繼承來源 ListControl)
FormattingEnabled

取得或設定值,指出格式化是否會套用至 DisplayMemberListControl 屬性。Gets or sets a value indicating whether formatting is applied to the DisplayMember property of the ListControl.

(繼承來源 ListControl)
Handle

取得控制項要繫結的目標視窗控制代碼。Gets the window handle that the control is bound to.

(繼承來源 Control)
HasChildren

取得指示控制項是否包含一或多個子控制項的值。Gets a value indicating whether the control contains one or more child controls.

(繼承來源 Control)
Height

取得或設定控制項的高度。Gets or sets the height of the control.

(繼承來源 Control)
ImeMode

取得或設定控制項的輸入法 (IME) 模式。Gets or sets the Input Method Editor (IME) mode of the control.

(繼承來源 Control)
ImeModeBase

取得或設定控制項的 IME 模式。Gets or sets the IME mode of a control.

(繼承來源 Control)
IntegralHeight

取得或設定值,指出控制項是否應該重新調整大小以避免僅顯示部分項目。Gets or sets a value indicating whether the control should resize to avoid showing partial items.

InvokeRequired

取得一個值。這個值會指示是否由於呼叫端是在建立控制項之執行緒以外的執行緒,因此在進行控制項的方法呼叫時,應呼叫叫用 (Invoke) 方法。Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on.

(繼承來源 Control)
IsAccessible

取得或設定值,指出可及性應用程式是否見得到控制項。Gets or sets a value indicating whether the control is visible to accessibility applications.

(繼承來源 Control)
IsDisposed

取得指示控制項是否已經處置的值。Gets a value indicating whether the control has been disposed of.

(繼承來源 Control)
IsHandleCreated

取得指示控制項是否有相關控制代碼的值。Gets a value indicating whether the control has a handle associated with it.

(繼承來源 Control)
IsMirrored

取得值,指出是否左右反轉控制項。Gets a value indicating whether the control is mirrored.

(繼承來源 Control)
ItemHeight

取得或設定下拉式方塊中的項目高度。Gets or sets the height of an item in the combo box.

Items

取得物件,代表包含於這個 ComboBox 中的項目集合。Gets an object representing the collection of the items contained in this ComboBox.

LayoutEngine

取得控制項之配置引擎的快取執行個體。Gets a cached instance of the control's layout engine.

(繼承來源 Control)
Left

取得或設定控制項左邊緣和其容器工作區 (Client Area) 左邊緣之間的距離 (單位為像素)。Gets or sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area.

(繼承來源 Control)
Location

取得或設定對應至控制項容器左上角之控制項左上角的座標。Gets or sets the coordinates of the upper-left corner of the control relative to the upper-left corner of its container.

(繼承來源 Control)
Margin

取得或設定控制項之間的空格。Gets or sets the space between controls.

(繼承來源 Control)
MaxDropDownItems

取得或設定要在 ComboBox 下拉部分顯示的最大項目數。Gets or sets the maximum number of items to be shown in the drop-down portion of the ComboBox.

MaximumSize

取得或設定 GetPreferredSize(Size) 方法可以指定的大小上限。Gets or sets the size that is the upper limit that the GetPreferredSize(Size) method can specify.

MaxLength

取得或設定使用者可以在 ComboBox 中輸入的字元數。Gets or sets the number of characters a user can type into the ComboBox.

MinimumSize

取得或設定 GetPreferredSize(Size) 方法可以指定的大小下限。Gets or sets the size that is the lower limit that the GetPreferredSize(Size) method can specify.

Name

取得或設定控制項的名稱。Gets or sets the name of the control.

(繼承來源 Control)
Padding

這個屬性與這個類別無關。This property is not relevant for this class.

Parent

取得或設定控制項的父容器。Gets or sets the parent container of the control.

(繼承來源 Control)
PreferredHeight

取得 ComboBox 的慣用高度。Gets the preferred height of the ComboBox.

PreferredSize

取得能夠容納控制項的矩形區域的大小。Gets the size of a rectangular area into which the control can fit.

(繼承來源 Control)
ProductName

取得包含控制項的組件的產品名稱。Gets the product name of the assembly containing the control.

(繼承來源 Control)
ProductVersion

取得包含控制項的組件的版本。Gets the version of the assembly containing the control.

(繼承來源 Control)
RecreatingHandle

取得指示控制項目前是否正重新建立其控制代碼的值。Gets a value indicating whether the control is currently re-creating its handle.

(繼承來源 Control)
Region

取得或設定與控制項關聯的視窗區域。Gets or sets the window region associated with the control.

(繼承來源 Control)
RenderRightToLeft

此屬性現在已過時。This property is now obsolete.

(繼承來源 Control)
ResizeRedraw

取得或設定值,指出控制項重設大小時,是否會重繪本身。Gets or sets a value indicating whether the control redraws itself when resized.

(繼承來源 Control)
Right

取得控制項右邊緣和其容器工作區 (Client Area) 左邊緣之間的距離 (單位為像素)。Gets the distance, in pixels, between the right edge of the control and the left edge of its container's client area.

(繼承來源 Control)
RightToLeft

取得或設定值,指出控制項的項目是否對齊,以支援使用由右至左字型的地區設定。Gets or sets a value indicating whether control's elements are aligned to support locales using right-to-left fonts.

(繼承來源 Control)
ScaleChildren

取得值,以判斷子控制項的縮放。Gets a value that determines the scaling of child controls.

(繼承來源 Control)
SelectedIndex

取得或設定目前選取項目的索引。Gets or sets the index specifying the currently selected item.

SelectedItem

取得或設定目前在 ComboBox 中選取的項目。Gets or sets currently selected item in the ComboBox.

SelectedText

取得或設定在 ComboBox 的可編輯部分中選取的文字。Gets or sets the text that is selected in the editable portion of a ComboBox.

SelectedValue

取得或設定 ValueMember 屬性指定的成員屬性值。Gets or sets the value of the member property specified by the ValueMember property.

(繼承來源 ListControl)
SelectionLength

取得或設定在下拉式方塊可編輯部分中選取的字元數。Gets or sets the number of characters selected in the editable portion of the combo box.

SelectionStart

取得或設定下拉式方塊中所選取文字的起始索引。Gets or sets the starting index of text selected in the combo box.

ShowFocusCues

取得指示控制項是否應顯示焦點矩形 (Focus Rectangle) 的值。Gets a value indicating whether the control should display focus rectangles.

(繼承來源 Control)
ShowKeyboardCues

取得值,指出使用者介面是否處於可顯示或隱藏鍵盤快速鍵的適當狀態下。Gets a value indicating whether the user interface is in the appropriate state to show or hide keyboard accelerators.

(繼承來源 Control)
Site

取得或設定控制項的站台。Gets or sets the site of the control.

(繼承來源 Control)
Size

取得或設定控制項的高度和寬度。Gets or sets the height and width of the control.

(繼承來源 Control)
Sorted

取得或設定值,指出是否排序下拉式方塊中的項目。Gets or sets a value indicating whether the items in the combo box are sorted.

TabIndex

取得或設定控制項容器中的控制項定位順序。Gets or sets the tab order of the control within its container.

(繼承來源 Control)
TabStop

取得或設定值,指出使用者是否能使用 TAB 鍵,將焦點 (Focus) 給予這個控制項。Gets or sets a value indicating whether the user can give the focus to this control using the TAB key.

(繼承來源 Control)
Tag

取得或設定物件,其包含控制項相關資料。Gets or sets the object that contains data about the control.

(繼承來源 Control)
Text

取得或設定這個控制項的相關文字。Gets or sets the text associated with this control.

Top

取得或設定控制項上邊緣和其容器工作區 (Client Area) 上邊緣之間的距離 (單位為像素)。Gets or sets the distance, in pixels, between the top edge of the control and the top edge of its container's client area.

(繼承來源 Control)
TopLevelControl

取得沒有其他 Windows Form 父控制項的父控制項。Gets the parent control that is not parented by another Windows Forms control. 通常,這會是內含控制項最外層的 FormTypically, this is the outermost Form that the control is contained in.

(繼承來源 Control)
UseWaitCursor

取得或設定值,指出是否將等待游標用於目前控制項和所有子控制項。Gets or sets a value indicating whether to use the wait cursor for the current control and all child controls.

(繼承來源 Control)
ValueMember

取得或設定要當做 ListControl 中項目之實際值使用的屬性路徑。Gets or sets the path of the property to use as the actual value for the items in the ListControl.

(繼承來源 ListControl)
Visible

取得或設定值,這個值指出是否顯示控制項及其所有子控制項。Gets or sets a value indicating whether the control and all its child controls are displayed.

(繼承來源 Control)
Width

取得或設定控制項的寬度。Gets or sets the width of the control.

(繼承來源 Control)
WindowTarget

這個屬性與這個類別無關。This property is not relevant for this class.

(繼承來源 Control)

方法

AccessibilityNotifyClients(AccessibleEvents, Int32)

將指定子控制項的指定 AccessibleEvents 告知協助工具用戶端應用程式。Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control.

(繼承來源 Control)
AccessibilityNotifyClients(AccessibleEvents, Int32, Int32)

將指定子控制項的指定 AccessibleEvents 告知協助工具用戶端應用程式。Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control .

(繼承來源 Control)
AddItemsCore(Object[])

加入指定項目至下拉式方塊。Adds the specified items to the combo box.

BeginInvoke(Delegate)

在建立控制項基礎控制代碼的執行緒上執行指定的非同步委派。Executes the specified delegate asynchronously on the thread that the control's underlying handle was created on.

(繼承來源 Control)
BeginInvoke(Delegate, Object[])

在建立控制項基礎控制代碼的執行緒上,以指定的引數非同步執行指定的委派。Executes the specified delegate asynchronously with the specified arguments, on the thread that the control's underlying handle was created on.

(繼承來源 Control)
BeginUpdate()

當項目一次一筆加入 ComboBox 時可維護效能。Maintains performance when items are added to the ComboBox one at a time.

BringToFront()

將控制項帶到疊置順序的前面。Brings the control to the front of the z-order.

(繼承來源 Control)
Contains(Control)

擷取指示控制項是否為控制項的子控制項的值。Retrieves a value indicating whether the specified control is a child of the control.

(繼承來源 Control)
CreateAccessibilityInstance()

為控制項建立新的協助工具物件。Creates a new accessibility object for the control.

CreateControl()

強制建立可見控制項,包含建立控制代碼和任何可見的子控制項。Forces the creation of the visible control, including the creation of the handle and any visible child controls.

(繼承來源 Control)
CreateControlsInstance()

建立控制項的控制項集合的新執行個體。Creates a new instance of the control collection for the control.

(繼承來源 Control)
CreateGraphics()

建立控制項的 GraphicsCreates the Graphics for the control.

(繼承來源 Control)
CreateHandle()

建立控制項的控制代碼。Creates a handle for the control.

CreateObjRef(Type)

建立包含所有相關資訊的物件,這些資訊是產生用來與遠端物件通訊的所需 Proxy。Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.

(繼承來源 MarshalByRefObject)
DefWndProc(Message)

傳送指定的訊息至預設的視窗程序。Sends the specified message to the default window procedure.

(繼承來源 Control)
DestroyHandle()

終結與這個控制項相關的控制代碼。Destroys the handle associated with the control.

(繼承來源 Control)
Dispose()

釋放 Component 所使用的所有資源。Releases all resources used by the Component.

(繼承來源 Component)
Dispose(Boolean)

釋放 ComboBox 所使用的 Unmanaged 資源,並選擇性地釋放 Managed 資源。Releases the unmanaged resources used by the ComboBox and optionally releases the managed resources.

DoDragDrop(Object, DragDropEffects)

開始拖放作業。Begins a drag-and-drop operation.

(繼承來源 Control)
DrawToBitmap(Bitmap, Rectangle)

支援呈現為指定的點陣圖。Supports rendering to the specified bitmap.

(繼承來源 Control)
EndInvoke(IAsyncResult)

擷取由傳遞的 IAsyncResult 表示的非同步作業的傳回值。Retrieves the return value of the asynchronous operation represented by the IAsyncResult passed.

(繼承來源 Control)
EndUpdate()

ComboBox 方法暫停繪製之後,繼續繪製 BeginUpdate() 控制項。Resumes painting the ComboBox control after painting is suspended by the BeginUpdate() method.

Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(繼承來源 Object)
FilterItemOnProperty(Object)

如果 ListControl 項目是某個物件的屬性 (指定項目),則擷取此項目的目前值。Retrieves the current value of the ListControl item, if it is a property of an object, given the item.

(繼承來源 ListControl)
FilterItemOnProperty(Object, String)

如果 ListControl 項目是某個物件的屬性 (指定項目和屬性名稱),則傳回此項目的目前值。Returns the current value of the ListControl item, if it is a property of an object given the item and the property name.

(繼承來源 ListControl)
FindForm()

擷取控制項所在的表單。Retrieves the form that the control is on.

(繼承來源 Control)
FindString(String)

傳回 ComboBox 中以指定字串開頭之第一個項目的索引。Returns the index of the first item in the ComboBox that starts with the specified string.

FindString(String, Int32)

傳回 ComboBox 中指定索引位置之外包含指定字串之第一個項目的索引。Returns the index of the first item in the ComboBox beyond the specified index that contains the specified string. 搜尋是不區分大小寫的。The search is not case sensitive.

FindStringExact(String)

尋找下拉式方塊中第一個完全符合指定字串的項目。Finds the first item in the combo box that matches the specified string.

FindStringExact(String, Int32)

尋找在指定索引之後第一個符合指定字串的項目。Finds the first item after the specified index that matches the specified string.

Focus()

設定控制項的輸入焦點。Sets input focus to the control.

(繼承來源 Control)
GetAccessibilityObjectById(Int32)

擷取指定的 AccessibleObjectRetrieves the specified AccessibleObject.

(繼承來源 Control)
GetAutoSizeMode()

擷取值,表示已啟用控制項的 AutoSize 屬性時,該控制項的行為模式為何。Retrieves a value indicating how a control will behave when its AutoSize property is enabled.

(繼承來源 Control)
GetChildAtPoint(Point)

擷取位於指定座標的子控制項。Retrieves the child control that is located at the specified coordinates.

(繼承來源 Control)
GetChildAtPoint(Point, GetChildAtPointSkip)

擷取位於指定座標上的子控制項,指定是否要忽略特定類型的子控制項。Retrieves the child control that is located at the specified coordinates, specifying whether to ignore child controls of a certain type.

(繼承來源 Control)
GetContainerControl()

傳回父控制項的控制項鏈結上的下一個 ContainerControlReturns the next ContainerControl up the control's chain of parent controls.

(繼承來源 Control)
GetHashCode()

作為預設雜湊函數。Serves as the default hash function.

(繼承來源 Object)
GetItemHeight(Int32)

傳回 ComboBox 中項目的高度。Returns the height of an item in the ComboBox.

GetItemText(Object)

傳回指定項目的文字表示。Returns the text representation of the specified item.

(繼承來源 ListControl)
GetLifetimeService()

擷取控制這個執行個體存留期 (Lifetime) 原則的目前存留期服務物件。Retrieves the current lifetime service object that controls the lifetime policy for this instance.

(繼承來源 MarshalByRefObject)
GetNextControl(Control, Boolean)

擷取子控制項定位順序中前後的下一個控制項。Retrieves the next control forward or back in the tab order of child controls.

(繼承來源 Control)
GetPreferredSize(Size)

擷取可容納控制項之矩形區域的大小。Retrieves the size of a rectangular area into which a control can be fitted.

(繼承來源 Control)
GetScaledBounds(Rectangle, SizeF, BoundsSpecified)

擷取縮放控制項的範圍。Retrieves the bounds within which the control is scaled.

(繼承來源 Control)
GetService(Type)

傳回表示 Component 或其 Container 所提供之服務的物件。Returns an object that represents a service provided by the Component or by its Container.

(繼承來源 Component)
GetStyle(ControlStyles)

擷取控制項指定控制項樣式位元的值。Retrieves the value of the specified control style bit for the control.

(繼承來源 Control)
GetTopLevel()

判斷控制項是否為最上層控制項。Determines if the control is a top-level control.

(繼承來源 Control)
GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(繼承來源 Object)
Hide()

對使用者隱藏控制項。Conceals the control from the user.

(繼承來源 Control)
InitializeLifetimeService()

取得存留期服務物件,以控制這個執行個體的存留期原則。Obtains a lifetime service object to control the lifetime policy for this instance.

(繼承來源 MarshalByRefObject)
InitLayout()

在控制項加入其他容器後呼叫。Called after the control has been added to another container.

(繼承來源 Control)
Invalidate()

讓控制項的整個介面失效,並重新繪製控制項。Invalidates the entire surface of the control and causes the control to be redrawn.

(繼承來源 Control)
Invalidate(Boolean)

使控制項的特定區域失效,並且造成傳送繪製訊息至控制項。Invalidates a specific region of the control and causes a paint message to be sent to the control. 選擇性使指派至控制項的子控制項失效。Optionally, invalidates the child controls assigned to the control.

(繼承來源 Control)
Invalidate(Rectangle)

使控制項的指定區域失效 (將它加入控制項的更新區域,而這個區域會在下一個繪製作業中重新繪製),並使繪製訊息傳送至控制項。Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

(繼承來源 Control)
Invalidate(Rectangle, Boolean)

使控制項的指定區域失效 (將它加入控制項的更新區域,而這個區域會在下一個繪製作業中重新繪製),並使繪製訊息傳送至控制項。Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. 選擇性使指派至控制項的子控制項失效。Optionally, invalidates the child controls assigned to the control.

(繼承來源 Control)
Invalidate(Region)

使控制項的指定區域失效 (將它加入控制項的更新區域,而這個區域會在下一個繪製作業中重新繪製),並使繪製訊息傳送至控制項。Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

(繼承來源 Control)
Invalidate(Region, Boolean)

使控制項的指定區域失效 (將它加入控制項的更新區域,而這個區域會在下一個繪製作業中重新繪製),並使繪製訊息傳送至控制項。Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control. 選擇性使指派至控制項的子控制項失效。Optionally, invalidates the child controls assigned to the control.

(繼承來源 Control)
Invoke(Delegate)

在擁有控制項基礎視窗控制代碼的執行緒上執行指定的委派。Executes the specified delegate on the thread that owns the control's underlying window handle.

(繼承來源 Control)
Invoke(Delegate, Object[])

在擁有控制項基礎視窗控制代碼的執行緒上,以指定的引數清單執行指定的委派。Executes the specified delegate, on the thread that owns the control's underlying window handle, with the specified list of arguments.

(繼承來源 Control)
InvokeGotFocus(Control, EventArgs)

引發指定之控制項的 GotFocus 事件。Raises the GotFocus event for the specified control.

(繼承來源 Control)
InvokeLostFocus(Control, EventArgs)

引發指定之控制項的 LostFocus 事件。Raises the LostFocus event for the specified control.

(繼承來源 Control)
InvokeOnClick(Control, EventArgs)

引發指定之控制項的 Click 事件。Raises the Click event for the specified control.

(繼承來源 Control)
InvokePaint(Control, PaintEventArgs)

引發指定之控制項的 Paint 事件。Raises the Paint event for the specified control.

(繼承來源 Control)
InvokePaintBackground(Control, PaintEventArgs)

引發指定之控制項的 PaintBackground 事件。Raises the PaintBackground event for the specified control.

(繼承來源 Control)
IsInputChar(Char)

判斷字元是否為控制項辨認的輸入字元。Determines if a character is an input character that the control recognizes.

(繼承來源 Control)
IsInputKey(Keys)

判斷指定的按鍵是標準輸入按鍵或需要前置處理的特殊按鍵。Determines whether the specified key is a regular input key or a special key that requires preprocessing.

LogicalToDeviceUnits(Int32)

將邏輯 DPI 值轉換為它的對等 DeviceUnit DPI 值。Converts a Logical DPI value to its equivalent DeviceUnit DPI value.

(繼承來源 Control)
LogicalToDeviceUnits(Size)

針對目前的 DPI 調整大小,並四捨五入為最接近的寬度和高度整數值,以將大小從邏輯轉換成裝置單位。Transforms a size from logical to device units by scaling it for the current DPI and rounding down to the nearest integer value for width and height.

(繼承來源 Control)
MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(繼承來源 Object)
MemberwiseClone(Boolean)

建立目前 MarshalByRefObject 物件的淺層複本。Creates a shallow copy of the current MarshalByRefObject object.

(繼承來源 MarshalByRefObject)
NotifyInvalidate(Rectangle)

引發 Invalidated 事件,包含要失效的指定控制項區域。Raises the Invalidated event with a specified region of the control to invalidate.

(繼承來源 Control)
OnAutoSizeChanged(EventArgs)

引發 AutoSizeChanged 事件。Raises the AutoSizeChanged event.

(繼承來源 Control)
OnBackColorChanged(EventArgs)

引發 BackColorChanged 事件。Raises the BackColorChanged event.

OnBackgroundImageChanged(EventArgs)

引發 BackgroundImageChanged 事件。Raises the BackgroundImageChanged event.

(繼承來源 Control)
OnBackgroundImageLayoutChanged(EventArgs)

引發 BackgroundImageLayoutChanged 事件。Raises the BackgroundImageLayoutChanged event.

(繼承來源 Control)
OnBindingContextChanged(EventArgs)

引發 BindingContextChanged 事件。Raises the BindingContextChanged event.

(繼承來源 ListControl)
OnCausesValidationChanged(EventArgs)

引發 CausesValidationChanged 事件。Raises the CausesValidationChanged event.

(繼承來源 Control)
OnChangeUICues(UICuesEventArgs)

引發 ChangeUICues 事件。Raises the ChangeUICues event.

(繼承來源 Control)
OnClick(EventArgs)

引發 Click 事件。Raises the Click event.

(繼承來源 Control)
OnClientSizeChanged(EventArgs)

引發 ClientSizeChanged 事件。Raises the ClientSizeChanged event.

(繼承來源 Control)
OnContextMenuChanged(EventArgs)

引發 ContextMenuChanged 事件。Raises the ContextMenuChanged event.

(繼承來源 Control)
OnContextMenuStripChanged(EventArgs)

引發 ContextMenuStripChanged 事件。Raises the ContextMenuStripChanged event.

(繼承來源 Control)
OnControlAdded(ControlEventArgs)

引發 ControlAdded 事件。Raises the ControlAdded event.

(繼承來源 Control)
OnControlRemoved(ControlEventArgs)

引發 ControlRemoved 事件。Raises the ControlRemoved event.

(繼承來源 Control)
OnCreateControl()

引發 CreateControl() 方法。Raises the CreateControl() method.

(繼承來源 Control)
OnCursorChanged(EventArgs)

引發 CursorChanged 事件。Raises the CursorChanged event.

(繼承來源 Control)
OnDataSourceChanged(EventArgs)

引發 DataSourceChanged 事件。Raises the DataSourceChanged event.

OnDisplayMemberChanged(EventArgs)

引發 DisplayMemberChanged 事件。Raises the DisplayMemberChanged event.

OnDockChanged(EventArgs)

引發 DockChanged 事件。Raises the DockChanged event.

(繼承來源 Control)
OnDoubleClick(EventArgs)

引發 DoubleClick 事件。Raises the DoubleClick event.

(繼承來源 Control)
OnDpiChangedAfterParent(EventArgs)

引發 DpiChangedAfterParent 事件。Raises the DpiChangedAfterParent event.

(繼承來源 Control)
OnDpiChangedBeforeParent(EventArgs)

引發 DpiChangedBeforeParent 事件。Raises the DpiChangedBeforeParent event.

(繼承來源 Control)
OnDragDrop(DragEventArgs)

引發 DragDrop 事件。Raises the DragDrop event.

(繼承來源 Control)
OnDragEnter(DragEventArgs)

引發 DragEnter 事件。Raises the DragEnter event.

(繼承來源 Control)
OnDragLeave(EventArgs)

引發 DragLeave 事件。Raises the DragLeave event.

(繼承來源 Control)
OnDragOver(DragEventArgs)

引發 DragOver 事件。Raises the DragOver event.

(繼承來源 Control)
OnDrawItem(DrawItemEventArgs)

引發 DrawItem 事件。Raises the DrawItem event.

OnDropDown(EventArgs)

引發 DropDown 事件。Raises the DropDown event.

OnDropDownClosed(EventArgs)

引發 DropDownClosed 事件。Raises the DropDownClosed event.

OnDropDownStyleChanged(EventArgs)

引發 DropDownStyleChanged 事件。Raises the DropDownStyleChanged event.

OnEnabledChanged(EventArgs)

引發 EnabledChanged 事件。Raises the EnabledChanged event.

(繼承來源 Control)
OnEnter(EventArgs)

引發 Enter 事件。Raises the Enter event.

(繼承來源 Control)
OnFontChanged(EventArgs)

引發 FontChanged 事件。Raises the FontChanged event.

OnForeColorChanged(EventArgs)

引發 ForeColorChanged 事件。Raises the ForeColorChanged event.

OnFormat(ListControlConvertEventArgs)

引發 Format 事件。Raises the Format event.

(繼承來源 ListControl)
OnFormatInfoChanged(EventArgs)

引發 FormatInfoChanged 事件。Raises the FormatInfoChanged event.

(繼承來源 ListControl)
OnFormatStringChanged(EventArgs)

引發 FormatStringChanged 事件。Raises the FormatStringChanged event.

(繼承來源 ListControl)
OnFormattingEnabledChanged(EventArgs)

引發 FormattingEnabledChanged 事件。Raises the FormattingEnabledChanged event.

(繼承來源 ListControl)
OnGiveFeedback(GiveFeedbackEventArgs)

引發 GiveFeedback 事件。Raises the GiveFeedback event.

(繼承來源 Control)
OnGotFocus(EventArgs)

引發 GotFocus 事件。Raises the GotFocus event.

OnHandleCreated(EventArgs)

引發 HandleCreated 事件。Raises the HandleCreated event.

OnHandleDestroyed(EventArgs)

引發 HandleDestroyed 事件。Raises the HandleDestroyed event.

OnHelpRequested(HelpEventArgs)

引發 HelpRequested 事件。Raises the HelpRequested event.

(繼承來源 Control)
OnImeModeChanged(EventArgs)

引發 ImeModeChanged 事件。Raises the ImeModeChanged event.

(繼承來源 Control)
OnInvalidated(InvalidateEventArgs)

引發 Invalidated 事件。Raises the Invalidated event.

(繼承來源 Control)
OnKeyDown(KeyEventArgs)

引發 KeyDown 事件。Raises the KeyDown event.

OnKeyPress(KeyPressEventArgs)

引發 KeyPress 事件。Raises the KeyPress event.

OnKeyUp(KeyEventArgs)

引發 KeyUp 事件。Raises the KeyUp event.

(繼承來源 Control)
OnLayout(LayoutEventArgs)

引發 Layout 事件。Raises the Layout event.

(繼承來源 Control)
OnLeave(EventArgs)

引發 Leave 事件。Raises the Leave event.

(繼承來源 Control)
OnLocationChanged(EventArgs)

引發 LocationChanged 事件。Raises the LocationChanged event.

(繼承來源 Control)
OnLostFocus(EventArgs)

引發 LostFocus 事件。Raises the LostFocus event.

OnMarginChanged(EventArgs)

引發 MarginChanged 事件。Raises the MarginChanged event.

(繼承來源 Control)
OnMeasureItem(MeasureItemEventArgs)

引發 MeasureItem 事件。Raises the MeasureItem event.

OnMouseCaptureChanged(EventArgs)

引發 MouseCaptureChanged 事件。Raises the MouseCaptureChanged event.

(繼承來源 Control)
OnMouseClick(MouseEventArgs)

引發 MouseClick 事件。Raises the MouseClick event.

(繼承來源 Control)
OnMouseDoubleClick(MouseEventArgs)

引發 MouseDoubleClick 事件。Raises the MouseDoubleClick event.

(繼承來源 Control)
OnMouseDown(MouseEventArgs)

引發 MouseDown 事件。Raises the MouseDown event.

(繼承來源 Control)
OnMouseEnter(EventArgs)

引發 MouseEnter 事件。Raises the MouseEnter event.

OnMouseHover(EventArgs)

引發 MouseHover 事件。Raises the MouseHover event.

(繼承來源 Control)
OnMouseLeave(EventArgs)

引發 MouseLeave 事件。Raises the MouseLeave event.

OnMouseMove(MouseEventArgs)

引發 MouseMove 事件。Raises the MouseMove event.

(繼承來源 Control)
OnMouseUp(MouseEventArgs)

引發 MouseUp 事件。Raises the MouseUp event.

(繼承來源 Control)
OnMouseWheel(MouseEventArgs)

引發 MouseWheel 事件。Raises the MouseWheel event.

(繼承來源 Control)
OnMove(EventArgs)

引發 Move 事件。Raises the Move event.

(繼承來源 Control)
OnNotifyMessage(Message)

將 Windows 訊息通知控制項。Notifies the control of Windows messages.

(繼承來源 Control)
OnPaddingChanged(EventArgs)

引發 PaddingChanged 事件。Raises the PaddingChanged event.

(繼承來源 Control)
OnPaint(PaintEventArgs)

引發 Paint 事件。Raises the Paint event.

(繼承來源 Control)
OnPaintBackground(PaintEventArgs)

繪製控制項的背景。Paints the background of the control.

(繼承來源 Control)
OnParentBackColorChanged(EventArgs)

引發 BackColorChanged 事件。Raises the BackColorChanged event.

OnParentBackgroundImageChanged(EventArgs)

當控制項容器的 BackgroundImageChanged 屬性值變更時,會引發 BackgroundImage 事件。Raises the BackgroundImageChanged event when the BackgroundImage property value of the control's container changes.

(繼承來源 Control)
OnParentBindingContextChanged(EventArgs)

當控制項容器的 BindingContextChanged 屬性值變更時,會引發 BindingContext 事件。Raises the BindingContextChanged event when the BindingContext property value of the control's container changes.

(繼承來源 Control)
OnParentChanged(EventArgs)

引發 ParentChanged 事件。Raises the ParentChanged event.

(繼承來源 Control)
OnParentCursorChanged(EventArgs)

引發 CursorChanged 事件。Raises the CursorChanged event.

(繼承來源 Control)
OnParentEnabledChanged(EventArgs)

當控制項容器的 EnabledChanged 屬性值變更時,會引發 Enabled 事件。Raises the EnabledChanged event when the Enabled property value of the control's container changes.

(繼承來源 Control)
OnParentFontChanged(EventArgs)

當控制項容器的 FontChanged 屬性值變更時,會引發 Font 事件。Raises the FontChanged event when the Font property value of the control's container changes.

(繼承來源 Control)
OnParentForeColorChanged(EventArgs)

當控制項容器的 ForeColorChanged 屬性值變更時,會引發 ForeColor 事件。Raises the ForeColorChanged event when the ForeColor property value of the control's container changes.

(繼承來源 Control)
OnParentRightToLeftChanged(EventArgs)

當控制項容器的 RightToLeftChanged 屬性值變更時,會引發 RightToLeft 事件。Raises the RightToLeftChanged event when the RightToLeft property value of the control's container changes.

(繼承來源 Control)
OnParentVisibleChanged(EventArgs)

當控制項容器的 VisibleChanged 屬性值變更時,會引發 Visible 事件。Raises the VisibleChanged event when the Visible property value of the control's container changes.

(繼承來源 Control)
OnPreviewKeyDown(PreviewKeyDownEventArgs)

引發 PreviewKeyDown 事件。Raises the PreviewKeyDown event.

(繼承來源 Control)
OnPrint(PaintEventArgs)

引發 Paint 事件。Raises the Paint event.

(繼承來源 Control)
OnQueryContinueDrag(QueryContinueDragEventArgs)

引發 QueryContinueDrag 事件。Raises the QueryContinueDrag event.

(繼承來源 Control)
OnRegionChanged(EventArgs)

引發 RegionChanged 事件。Raises the RegionChanged event.

(繼承來源 Control)
OnResize(EventArgs)

引發 Resize 事件。Raises the Resize event.

OnRightToLeftChanged(EventArgs)

引發 RightToLeftChanged 事件。Raises the RightToLeftChanged event.

(繼承來源 Control)
OnSelectedIndexChanged(EventArgs)

引發 SelectedIndexChanged 事件。Raises the SelectedIndexChanged event.

OnSelectedItemChanged(EventArgs)

引發 SelectedItemChanged 事件。Raises the SelectedItemChanged event.

OnSelectedValueChanged(EventArgs)

引發 SelectedValueChanged 事件。Raises the SelectedValueChanged event.

OnSelectionChangeCommitted(EventArgs)

引發 SelectionChangeCommitted 事件。Raises the SelectionChangeCommitted event.

OnSizeChanged(EventArgs)

引發 SizeChanged 事件。Raises the SizeChanged event.

(繼承來源 Control)
OnStyleChanged(EventArgs)

引發 StyleChanged 事件。Raises the StyleChanged event.

(繼承來源 Control)
OnSystemColorsChanged(EventArgs)

引發 SystemColorsChanged 事件。Raises the SystemColorsChanged event.

(繼承來源 Control)
OnTabIndexChanged(EventArgs)

引發 TabIndexChanged 事件。Raises the TabIndexChanged event.

(繼承來源 Control)
OnTabStopChanged(EventArgs)

引發 TabStopChanged 事件。Raises the TabStopChanged event.

(繼承來源 Control)
OnTextChanged(EventArgs)

引發 TextChanged 事件。Raises the TextChanged event.

OnTextUpdate(EventArgs)

引發 TextUpdate 事件。Raises the TextUpdate event.

OnValidated(EventArgs)

引發 Validated 事件。Raises the Validated event.

(繼承來源 Control)
OnValidating(CancelEventArgs)

引發 Validating 事件。Raises the Validating event.

OnValueMemberChanged(EventArgs)

引發 ValueMemberChanged 事件。Raises the ValueMemberChanged event.

(繼承來源 ListControl)
OnVisibleChanged(EventArgs)

引發 VisibleChanged 事件。Raises the VisibleChanged event.

(繼承來源 Control)
PerformLayout()

強制控制項將配置邏輯套用至其所有子控制項。Forces the control to apply layout logic to all its child controls.

(繼承來源 Control)
PerformLayout(Control, String)

強制控制項將配置邏輯套用至其所有子控制項。Forces the control to apply layout logic to all its child controls.

(繼承來源 Control)
PointToClient(Point)

將指定的螢幕點的位置計算為工作區座標 (Client Coordinate)。Computes the location of the specified screen point into client coordinates.

(繼承來源 Control)
PointToScreen(Point)

將指定的工作區點的位置計算為螢幕座標。Computes the location of the specified client point into screen coordinates.

(繼承來源 Control)
PreProcessControlMessage(Message)

先於訊息迴圈中前置處理鍵盤或輸入訊息後,再分派這些訊息。Preprocesses keyboard or input messages within the message loop before they are dispatched.

(繼承來源 Control)
PreProcessMessage(Message)

先於訊息迴圈中前置處理鍵盤或輸入訊息後,再分派這些訊息。Preprocesses keyboard or input messages within the message loop before they are dispatched.

(繼承來源 Control)
ProcessCmdKey(Message, Keys)
ProcessDialogChar(Char)

處理對話方塊字元。Processes a dialog character.

(繼承來源 Control)
ProcessDialogKey(Keys)

處理對話方塊按鍵。Processes a dialog key.

(繼承來源 Control)
ProcessKeyEventArgs(Message)

處理按鍵訊息,並產生適當的控制項事件。Processes a key message and generates the appropriate control events.

ProcessKeyMessage(Message)

處理鍵盤訊息。Processes a keyboard message.

(繼承來源 Control)
ProcessKeyPreview(Message)

預覽鍵盤訊息。Previews a keyboard message.

(繼承來源 Control)
ProcessMnemonic(Char)

處理助憶鍵字元。Processes a mnemonic character.

(繼承來源 Control)
RaiseDragEvent(Object, DragEventArgs)

引發適當的拖曳事件。Raises the appropriate drag event.

(繼承來源 Control)
RaiseKeyEvent(Object, KeyEventArgs)

引發適當的按鍵事件。Raises the appropriate key event.

(繼承來源 Control)
RaiseMouseEvent(Object, MouseEventArgs)

引發適當的滑鼠事件。Raises the appropriate mouse event.

(繼承來源 Control)
RaisePaintEvent(Object, PaintEventArgs)

引發適當的繪製事件。Raises the appropriate paint event.

(繼承來源 Control)
RecreateHandle()

強制重新建立控制項的控制代碼。Forces the re-creation of the handle for the control.

(繼承來源 Control)
RectangleToClient(Rectangle)

以工作區座標計算指定的螢幕矩形大小和位置。Computes the size and location of the specified screen rectangle in client coordinates.

(繼承來源 Control)
RectangleToScreen(Rectangle)

以螢幕座標計算指定的工作區矩形大小和位置。Computes the size and location of the specified client rectangle in screen coordinates.

(繼承來源 Control)
Refresh()

強制控制項使其工作區失效,並且立即重繪其本身和任何子控制項。Forces the control to invalidate its client area and immediately redraw itself and any child controls.

(繼承來源 Control)
RefreshItem(Int32)

重新整理包含在指定之位置的項目。Refreshes the item contained at the specified location.

RefreshItems()

重新整理所有 ComboBox 項目。Refreshes all ComboBox items.

RescaleConstantsForDpi(Int32, Int32)

提供在發生 DPI 變更時用來重新調整控制項的常數。Provides constants for rescaling the control when a DPI change occurs.

(繼承來源 Control)
ResetBackColor()

重設 BackColor 屬性為其預設值。Resets the BackColor property to its default value.

(繼承來源 Control)
ResetBindings()

使得繫結至 BindingSource 的控制項重新讀取清單中的所有項目,並重新整理其顯示的值。Causes a control bound to the BindingSource to reread all the items in the list and refresh their displayed values.

(繼承來源 Control)
ResetCursor()

重設 Cursor 屬性為其預設值。Resets the Cursor property to its default value.

(繼承來源 Control)
ResetFont()

重設 Font 屬性為其預設值。Resets the Font property to its default value.

(繼承來源 Control)
ResetForeColor()

重設 ForeColor 屬性為其預設值。Resets the ForeColor property to its default value.

(繼承來源 Control)
ResetImeMode()

重設 ImeMode 屬性為其預設值。Resets the ImeMode property to its default value.

(繼承來源 Control)
ResetMouseEventArgs()

重設控制項來處理 MouseLeave 事件。Resets the control to handle the MouseLeave event.

(繼承來源 Control)
ResetRightToLeft()

重設 RightToLeft 屬性為其預設值。Resets the RightToLeft property to its default value.

(繼承來源 Control)
ResetText()

Text 屬性重設為其預設值 (Empty)。Resets the Text property to its default value (Empty).

ResumeLayout()

繼續平常的配置邏輯。Resumes usual layout logic.

(繼承來源 Control)
ResumeLayout(Boolean)

繼續平常的配置邏輯,選擇性地強制暫止配置要求的立即配置。Resumes usual layout logic, optionally forcing an immediate layout of pending layout requests.

(繼承來源 Control)
RtlTranslateAlignment(ContentAlignment)

將指定的 ContentAlignment 轉換為適當的 ContentAlignment,以支援由右至左的文字。Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text.

(繼承來源 Control)
RtlTranslateAlignment(HorizontalAlignment)

將指定的 HorizontalAlignment 轉換為適當的 HorizontalAlignment,以支援由右至左的文字。Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text.

(繼承來源 Control)
RtlTranslateAlignment(LeftRightAlignment)

將指定的 LeftRightAlignment 轉換為適當的 LeftRightAlignment,以支援由右至左的文字。Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text.

(繼承來源 Control)
RtlTranslateContent(ContentAlignment)

將指定的 ContentAlignment 轉換為適當的 ContentAlignment,以支援由右至左的文字。Converts the specified ContentAlignment to the appropriate ContentAlignment to support right-to-left text.

(繼承來源 Control)
RtlTranslateHorizontal(HorizontalAlignment)

將指定的 HorizontalAlignment 轉換為適當的 HorizontalAlignment,以支援由右至左的文字。Converts the specified HorizontalAlignment to the appropriate HorizontalAlignment to support right-to-left text.

(繼承來源 Control)
RtlTranslateLeftRight(LeftRightAlignment)

將指定的 LeftRightAlignment 轉換為適當的 LeftRightAlignment,以支援由右至左的文字。Converts the specified LeftRightAlignment to the appropriate LeftRightAlignment to support right-to-left text.

(繼承來源 Control)
Scale(Single)

縮放控制項和任何的子控制項。Scales the control and any child controls.

(繼承來源 Control)
Scale(Single, Single)

縮放整個控制項和任何的子控制項。Scales the entire control and any child controls.

(繼承來源 Control)
Scale(SizeF)

根據指定的縮放比例來縮放控制項和所有子控制項。Scales the control and all child controls by the specified scaling factor.

(繼承來源 Control)
ScaleBitmapLogicalToDevice(Bitmap)

發生 DPI 變更時,將邏輯點陣圖值調整為它的對等裝置單位值。Scales a logical bitmap value to it's equivalent device unit value when a DPI change occurs.

(繼承來源 Control)
ScaleControl(SizeF, BoundsSpecified)

縮放控制項的位置、大小、邊框間距和邊界。Scales a control's location, size, padding and margin.

ScaleCore(Single, Single)

這個方法與這個類別無關。This method is not relevant for this class.

(繼承來源 Control)
Select()

啟動控制項。Activates the control.

(繼承來源 Control)
Select(Boolean, Boolean)

啟動子控制項。Activates a child control. 選擇性指定定位順序中要選取控制項的方向。Optionally specifies the direction in the tab order to select the control from.

(繼承來源 Control)
Select(Int32, Int32)

ComboBox 的可編輯部分中選取某個範圍的文字。Selects a range of text in the editable portion of the ComboBox.

SelectAll()

ComboBox 的可編輯部分中選取所有文字。Selects all the text in the editable portion of the ComboBox.

SelectNextControl(Control, Boolean, Boolean, Boolean, Boolean)

啟動下一個控制項。Activates the next control.

(繼承來源 Control)
SendToBack()

將控制項傳送到疊置順序的後面。Sends the control to the back of the z-order.

(繼承來源 Control)
SetAutoSizeMode(AutoSizeMode)

設定值,表示已啟用控制項的 AutoSize 屬性時,該控制項的行為模式為何。Sets a value indicating how a control will behave when its AutoSize property is enabled.

(繼承來源 Control)
SetBounds(Int32, Int32, Int32, Int32)

將控制項的範圍設定為指定的位置和大小。Sets the bounds of the control to the specified location and size.

(繼承來源 Control)
SetBounds(Int32, Int32, Int32, Int32, BoundsSpecified)

將控制項的指定範圍設定為指定的位置和大小。Sets the specified bounds of the control to the specified location and size.

(繼承來源 Control)
SetBoundsCore(Int32, Int32, Int32, Int32, BoundsSpecified)

設定 ComboBox 的大小和位置。Sets the size and location of the ComboBox.

SetClientSizeCore(Int32, Int32)

設定控制項工作區的大小。Sets the size of the client area of the control.

(繼承來源 Control)
SetItemCore(Int32, Object)

在衍生類別中覆寫時,設定衍生類別中具有指定之索引的物件。When overridden in a derived class, sets the object with the specified index in the derived class.

SetItemsCore(IList)

在衍生類別中覆寫時,設定衍生類別之集合中指定的物件陣列。When overridden in a derived class, sets the specified array of objects in a collection in the derived class.

SetStyle(ControlStyles, Boolean)

將指定的 ControlStyles 旗標設定為 truefalseSets a specified ControlStyles flag to either true or false.

(繼承來源 Control)
SetTopLevel(Boolean)

將控制項設定為最上層控制項。Sets the control as the top-level control.

(繼承來源 Control)
SetVisibleCore(Boolean)

將控制項設定為指定的可見狀態。Sets the control to the specified visible state.

(繼承來源 Control)
Show()

對使用者顯示控制項。Displays the control to the user.

(繼承來源 Control)
SizeFromClientSize(Size)

從控制項的工作區之高度和寬度判斷整個控制項的大小。Determines the size of the entire control from the height and width of its client area.

(繼承來源 Control)
SuspendLayout()

暫停控制項的配置邏輯。Temporarily suspends the layout logic for the control.

(繼承來源 Control)
ToString()

傳回代表 ComboBox 控制項的字串。Returns a string that represents the ComboBox control.

Update()

使控制項重繪其工作區內的失效區域。Causes the control to redraw the invalidated regions within its client area.

(繼承來源 Control)
UpdateBounds()

以目前大小和位置更新控制項的範圍。Updates the bounds of the control with the current size and location.

(繼承來源 Control)
UpdateBounds(Int32, Int32, Int32, Int32)

以指定的大小和位置更新控制項的範圍。Updates the bounds of the control with the specified size and location.

(繼承來源 Control)
UpdateBounds(Int32, Int32, Int32, Int32, Int32, Int32)

以指定的大小、位置和工作區大小更新控制項的範圍。Updates the bounds of the control with the specified size, location, and client size.

(繼承來源 Control)
UpdateStyles()

強制重新套用指派的樣式至控制項。Forces the assigned styles to be reapplied to the control.

(繼承來源 Control)
UpdateZOrder()

以控制項的父控制項疊置順序更新控制項。Updates the control in its parent's z-order.

(繼承來源 Control)
WndProc(Message)

處理 Windows 訊息。Processes Windows messages.

事件

AutoSizeChanged

這個事件與這個類別無關。This event is not relevant for this class.

(繼承來源 Control)
BackColorChanged

發生於 BackColor 屬性的值變更時。Occurs when the value of the BackColor property changes.

(繼承來源 Control)
BackgroundImageChanged

發生於 BackgroundImage 屬性的值變更時。Occurs when the value of the BackgroundImage property changes.

BackgroundImageLayoutChanged

發生於 BackgroundImageLayout 屬性變更時。Occurs when the BackgroundImageLayout property changes.

BindingContextChanged

發生於 BindingContext 屬性的值變更時。Occurs when the value of the BindingContext property changes.

(繼承來源 Control)
CausesValidationChanged

發生於 CausesValidation 屬性的值變更時。Occurs when the value of the CausesValidation property changes.

(繼承來源 Control)
ChangeUICues

發生於焦點或鍵盤使用者介面 (UI) 提示變更時。Occurs when the focus or keyboard user interface (UI) cues change.

(繼承來源 Control)
Click

發生於按下控制項時。Occurs when the control is clicked.

(繼承來源 Control)
ClientSizeChanged

發生於 ClientSize 屬性的值變更時。Occurs when the value of the ClientSize property changes.

(繼承來源 Control)
ContextMenuChanged

發生於 ContextMenu 屬性的值變更時。Occurs when the value of the ContextMenu property changes.

(繼承來源 Control)
ContextMenuStripChanged

發生於 ContextMenuStrip 屬性的值變更時。Occurs when the value of the ContextMenuStrip property changes.

(繼承來源 Control)
ControlAdded

發生於加入新控制項至 Control.ControlCollection 時。Occurs when a new control is added to the Control.ControlCollection.

(繼承來源 Control)
ControlRemoved

發生於從 Control.ControlCollection 移除控制項時。Occurs when a control is removed from the Control.ControlCollection.

(繼承來源 Control)
CursorChanged

發生於 Cursor 屬性的值變更時。Occurs when the value of the Cursor property changes.

(繼承來源 Control)
DataSourceChanged

發生於 DataSource 變更時。Occurs when the DataSource changes.

(繼承來源 ListControl)
DisplayMemberChanged

發生於 DisplayMember 屬性變更時。Occurs when the DisplayMember property changes.

(繼承來源 ListControl)
Disposed

當此元件由 Dispose() 方法的呼叫處置時發生。Occurs when the component is disposed by a call to the Dispose() method.

(繼承來源 Component)
DockChanged

發生於 Dock 屬性的值變更時。Occurs when the value of the Dock property changes.

(繼承來源 Control)
DoubleClick

這個事件與這個類別無關。This event is not relevant for this class.

DpiChangedAfterParent

發生於某個控制項的父控制項或表單已變更之後,以程式設計方式變更其 DPI 設定時。Occurs when the DPI setting for a control is changed programmatically after the DPI of its parent control or form has changed.

(繼承來源 Control)
DpiChangedBeforeParent

發生於某個控制項的父控制項或表單發生 DPI 變更事件之前,以程式設計方式變更其 DPI 設定時。Occurs when the DPI setting for a control is changed programmatically before a DPI change event for its parent control or form has occurred.

(繼承來源 Control)
DragDrop

發生於拖放作業完成時。Occurs when a drag-and-drop operation is completed.

(繼承來源 Control)
DragEnter

發生於將物件拖曳至控制項邊框時。Occurs when an object is dragged into the control's bounds.

(繼承來源 Control)
DragLeave

發生於將物件拖出控制項界限時。Occurs when an object is dragged out of the control's bounds.

(繼承來源 Control)
DragOver

發生於將物件拖曳至控制項邊框上方時。Occurs when an object is dragged over the control's bounds.

(繼承來源 Control)
DrawItem

發生於主控描繪 ComboBox 的視覺外觀變更時。Occurs when a visual aspect of an owner-drawn ComboBox changes.

DropDown

發生於顯示 ComboBox 的下拉部分時。Occurs when the drop-down portion of a ComboBox is shown.

DropDownClosed

發生於 ComboBox 的下拉部分不存在時。Occurs when the drop-down portion of the ComboBox is no longer visible.

DropDownStyleChanged

發生於 DropDownStyle 屬性變更時。Occurs when the DropDownStyle property has changed.

EnabledChanged

發生於 Enabled 屬性值變更時。Occurs when the Enabled property value has changed.

(繼承來源 Control)
Enter

發生於輸入控制項時。Occurs when the control is entered.

(繼承來源 Control)
FontChanged

發生在 Font 屬性值變更時。Occurs when the Font property value changes.

(繼承來源 Control)
ForeColorChanged

發生在 ForeColor 屬性值變更時。Occurs when the ForeColor property value changes.

(繼承來源 Control)
Format

發生於控制項繫結至資料值時。Occurs when the control is bound to a data value.

(繼承來源 ListControl)
FormatInfoChanged

發生於 FormatInfo 屬性的值變更時。Occurs when the value of the FormatInfo property changes.

(繼承來源 ListControl)
FormatStringChanged

發生於 FormatString 屬性的值變更時。Occurs when value of the FormatString property changes.

(繼承來源 ListControl)
FormattingEnabledChanged

發生於 FormattingEnabled 屬性的值變更時。Occurs when the value of the FormattingEnabled property changes.

(繼承來源 ListControl)
GiveFeedback

發生於拖曳作業時。Occurs during a drag operation.

(繼承來源 Control)
GotFocus

發生於控制項取得焦點時。Occurs when the control receives focus.

(繼承來源 Control)
HandleCreated

發生於為控制項建立控制代碼時。Occurs when a handle is created for the control.

(繼承來源 Control)
HandleDestroyed

發生於終結控制項的控制代碼時。Occurs when the control's handle is in the process of being destroyed.

(繼承來源 Control)
HelpRequested

發生於使用者要求控制項的說明時。Occurs when the user requests help for a control.

(繼承來源 Control)
ImeModeChanged

發生於 ImeMode 屬性變更時。Occurs when the ImeMode property has changed.

(繼承來源 Control)
Invalidated

發生於控制項的顯示需要重新繪製時。Occurs when a control's display requires redrawing.

(繼承來源 Control)
KeyDown

發生於按下按鍵且焦點在控制項時。Occurs when a key is pressed while the control has focus.

(繼承來源 Control)
KeyPress

發生於Occurs when a character. 控制項有焦點,並按下字元空格鍵或退格鍵時。space or backspace key is pressed while the control has focus.

(繼承來源 Control)
KeyUp

發生於放開按鍵且焦點在控制項時。Occurs when a key is released while the control has focus.

(繼承來源 Control)
Layout

發生於控制項應重新調整其子控制項位置時。Occurs when a control should reposition its child controls.

(繼承來源 Control)
Leave

發生於輸入焦點離開控制項時。Occurs when the input focus leaves the control.

(繼承來源 Control)
LocationChanged

發生於 Location 屬性值變更時。Occurs when the Location property value has changed.

(繼承來源 Control)
LostFocus

發生於控制項遺失焦點時。Occurs when the control loses focus.

(繼承來源 Control)
MarginChanged

發生於控制項的邊界變更時。Occurs when the control's margin changes.

(繼承來源 Control)
MeasureItem

發生於需要繪製主控描繪 ComboBox 項目或已決定清單項目的大小時。Occurs each time an owner-drawn ComboBox item needs to be drawn and when the sizes of the list items are determined.

MouseCaptureChanged

發生於控制項遺失滑鼠捕捉時。Occurs when the control loses mouse capture.

(繼承來源 Control)
MouseClick

發生於使用滑鼠按一下控制項時。Occurs when the control is clicked by the mouse.

(繼承來源 Control)
MouseDoubleClick

發生於以滑鼠按兩下控制項時。Occurs when the control is double clicked by the mouse.

(繼承來源 Control)
MouseDown

發生於滑鼠指標位於控制項上並按下滑鼠按鍵時。Occurs when the mouse pointer is over the control and a mouse button is pressed.

(繼承來源 Control)
MouseEnter

發生於滑鼠指標進入控制項時。Occurs when the mouse pointer enters the control.

(繼承來源 Control)
MouseHover

發生於滑鼠指標停留在控制項上時。Occurs when the mouse pointer rests on the control.

(繼承來源 Control)
MouseLeave

發生於滑鼠指標離開控制項時。Occurs when the mouse pointer leaves the control.

(繼承來源 Control)
MouseMove

發生於滑鼠指標移至控制項上時。Occurs when the mouse pointer is moved over the control.

(繼承來源 Control)
MouseUp

發生於滑鼠指標位於控制項上並放開滑鼠按鍵時。Occurs when the mouse pointer is over the control and a mouse button is released.

(繼承來源 Control)
MouseWheel

發生於滑鼠滾輪移動且焦點在控制項時。Occurs when the mouse wheel moves while the control has focus.

(繼承來源 Control)
Move

發生於控制項移動時。Occurs when the control is moved.

(繼承來源 Control)
PaddingChanged

這個事件與這個類別無關。This event is not relevant to this class.

Paint

發生於重繪 ComboBox 控制項時。Occurs when the ComboBox control is redrawn.

ParentChanged

發生在 Parent 屬性值變更時。Occurs when the Parent property value changes.

(繼承來源 Control)
PreviewKeyDown

發生於焦點位於這個控制項上時並按下鍵盤按鍵的 KeyDown 事件之前。Occurs before the KeyDown event when a key is pressed while focus is on this control.

(繼承來源 Control)
QueryAccessibilityHelp

發生於 AccessibleObject 為協助工具應用程式提供說明時。Occurs when AccessibleObject is providing help to accessibility applications.

(繼承來源 Control)
QueryContinueDrag

發生於拖放作業時,讓拖曳來源能夠決定是否應取消拖放作業。Occurs during a drag-and-drop operation and enables the drag source to determine whether the drag-and-drop operation should be canceled.

(繼承來源 Control)
RegionChanged

發生於 Region 屬性的值變更時。Occurs when the value of the Region property changes.

(繼承來源 Control)
Resize

發生於重設控制項大小時。Occurs when the control is resized.

(繼承來源 Control)
RightToLeftChanged

發生在 RightToLeft 屬性值變更時。Occurs when the RightToLeft property value changes.

(繼承來源 Control)
SelectedIndexChanged

發生於 SelectedIndex 屬性變更時。Occurs when the SelectedIndex property has changed.

SelectedValueChanged

發生於 SelectedValue 屬性變更時。Occurs when the SelectedValue property changes.

(繼承來源 ListControl)
SelectionChangeCommitted

發生於使用者變更選取的項目,而且該項變更已顯示於 ComboBox 時。Occurs when the user changes the selected item and that change is displayed in the ComboBox.

SizeChanged

發生在 Size 屬性值變更時。Occurs when the Size property value changes.

(繼承來源 Control)
StyleChanged

發生於控制項樣式變更時。Occurs when the control style changes.

(繼承來源 Control)
SystemColorsChanged

發生於系統色彩變更時。Occurs when the system colors change.

(繼承來源 Control)
TabIndexChanged

發生在 TabIndex 屬性值變更時。Occurs when the TabIndex property value changes.

(繼承來源 Control)
TabStopChanged

發生在 TabStop 屬性值變更時。Occurs when the TabStop property value changes.

(繼承來源 Control)
TextChanged

發生在 Text 屬性值變更時。Occurs when the Text property value changes.

(繼承來源 Control)
TextUpdate

發生於控制項已格式化文字,但顯示文字之前。Occurs when the control has formatted the text, but before the text is displayed.

Validated

發生於控制項完成驗證時。Occurs when the control is finished validating.

(繼承來源 Control)
Validating

發生於驗證控制項時。Occurs when the control is validating.

(繼承來源 Control)
ValueMemberChanged

發生於 ValueMember 屬性變更時。Occurs when the ValueMember property changes.

(繼承來源 ListControl)
VisibleChanged

發生在 Visible 屬性值變更時。Occurs when the Visible property value changes.

(繼承來源 Control)

明確介面實作

IDropTarget.OnDragDrop(DragEventArgs)

引發 DragDrop 事件。Raises the DragDrop event.

(繼承來源 Control)
IDropTarget.OnDragEnter(DragEventArgs)

引發 DragEnter 事件。Raises the DragEnter event.

(繼承來源 Control)
IDropTarget.OnDragLeave(EventArgs)

引發 DragLeave 事件。Raises the DragLeave event.

(繼承來源 Control)
IDropTarget.OnDragOver(DragEventArgs)

引發 DragOver 事件。Raises the DragOver event.

(繼承來源 Control)

適用於