Control.ControlCollection Control.ControlCollection Control.ControlCollection Control.ControlCollection Class

定义

表示 Control 对象集合。Represents a collection of Control objects.

public: ref class Control::ControlCollection : System::Windows::Forms::Layout::ArrangedElementCollection, ICloneable, System::Collections::IList
[System.ComponentModel.ListBindable(false)]
[System.Runtime.InteropServices.ComVisible(false)]
public class Control.ControlCollection : System.Windows.Forms.Layout.ArrangedElementCollection, ICloneable, System.Collections.IList
type Control.ControlCollection = class
    inherit ArrangedElementCollection
    interface IList
    interface ICollection
    interface IEnumerable
    interface ICloneable
Public Class Control.ControlCollection
Inherits ArrangedElementCollection
Implements ICloneable, IList
继承
Control.ControlCollectionControl.ControlCollectionControl.ControlCollectionControl.ControlCollection
派生
属性
实现

示例

下面的代码示例从派生类的 @no__t @no__t (如果它是集合的成员,则从 Panel)中删除一个0。The following code example removes a Control from the Control.ControlCollection of the derived class Panel if it is a member of the collection. 该示例要求您在 @no__t 3 上创建了一个 Panel、一个 Button 和至少一个 @no__t 2 控件。The example requires that you have created a Panel, a Button, and at least one RadioButton control on a Form. 将 @no__t 0 个控件添加到 @no__t 控件,并将 @no__t 2 控件添加到 @no__t。The RadioButton controls are added to the Panel control, and the Panel control added to the Form. 单击该按钮时,将从 @no__t 中删除名为 radioButton2 的单选按钮。When the button is clicked, the radio button named radioButton2 is removed from the Control.ControlCollection.

   // Remove the RadioButton control if it exists.
private:
   void removeButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      if ( panel1->Controls->Contains( removeButton ) )
      {
         panel1->Controls->Remove( removeButton );
      }
   }
// Remove the RadioButton control if it exists.
private void removeButton_Click(object sender, System.EventArgs e)
{
   if(panel1.Controls.Contains(removeButton))
   {
      panel1.Controls.Remove(removeButton);
   }
}
' Remove the RadioButton control if it exists.
Private Sub RemoveButton_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles RemoveButton.Click
    If Panel1.Controls.Contains(RemoveButton) Then
        Panel1.Controls.Remove(RemoveButton)
    End If
End Sub

注解

@No__t,Remove 和 @no__t 2 方法使你可以在集合中添加和移除单个控件。The Add, Remove, and RemoveAt methods enable you to add and remove individual controls from the collection. 你还可以使用 @no__t 0 或 Clear 方法添加或删除集合中的所有控件。You can also use the AddRange or Clear methods to add or remove all the controls from the collection.

可以通过将控件传递到 @no__t 的方法来确定 @no__t 0 是否为集合的成员。You can determine if a Control is a member of the collection by passing the control into the Contains method. 若要获取集合中 Control 位置的索引值,请将该控件传递到 @no__t 1 方法。To get the index value of the location of a Control in the collection, pass the control into the IndexOf method. 可以通过调用 @no__t 0 方法将集合复制到数组中。The collection can be copied into an array by calling the CopyTo method.

构造函数

Control.ControlCollection(Control) Control.ControlCollection(Control) Control.ControlCollection(Control) Control.ControlCollection(Control)

初始化 Control.ControlCollection 类的新实例。Initializes a new instance of the Control.ControlCollection class.

属性

Count Count Count Count

获取集合中包含的元素数。Gets the number of elements contained in the collection.

IsReadOnly IsReadOnly IsReadOnly IsReadOnly

获取一个值,它指示此集合对象是否是只读的。Gets a value that indicates whether this collection object is read-only.

Item[Int32] Item[Int32] Item[Int32] Item[Int32]

指示位于集合中指定索引位置的 ControlIndicates the Control at the specified indexed location in the collection.

Item[String] Item[String] Item[String] Item[String]

指示集合中具有指定键的一个 ControlIndicates a Control with the specified key in the collection.

Owner Owner Owner Owner

获取拥有此 Control.ControlCollection 的控件。Gets the control that owns this Control.ControlCollection.

方法

Add(Control) Add(Control) Add(Control) Add(Control)

将指定的控件添加到控件集合中。Adds the specified control to the control collection.

AddRange(Control[]) AddRange(Control[]) AddRange(Control[]) AddRange(Control[])

将控件对象数组添加到集合中。Adds an array of control objects to the collection.

Clear() Clear() Clear() Clear()

从集合中移除所有控件。Removes all controls from the collection.

Contains(Control) Contains(Control) Contains(Control) Contains(Control)

确定指定控件是否为集合的成员。Determines whether the specified control is a member of the collection.

ContainsKey(String) ContainsKey(String) ContainsKey(String) ContainsKey(String)

确定 Control.ControlCollection 是否包含具有指定键的项。Determines whether the Control.ControlCollection contains an item with the specified key.

CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32)

从特定的数组索引开始,将集合的元素复制到数组中。Copies the elements of the collection to an array, starting at a particular array index.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

指定当前集合对象和所指定的对象是否相等。Specifies whether the current collection object and the specified object are equal.

Find(String, Boolean) Find(String, Boolean) Find(String, Boolean) Find(String, Boolean)

根据控件的 Name 属性搜索控件并生成由所有匹配项组成的数组。Searches for controls by their Name property and builds an array of all the controls that match.

GetChildIndex(Control) GetChildIndex(Control) GetChildIndex(Control) GetChildIndex(Control)

检索控件集合内的指定子控件的索引。Retrieves the index of the specified child control within the control collection.

GetChildIndex(Control, Boolean) GetChildIndex(Control, Boolean) GetChildIndex(Control, Boolean) GetChildIndex(Control, Boolean)

检索控件集合内的指定子控件的索引,并且如果指定控件不在控件集合内,也可能引发异常。Retrieves the index of the specified child control within the control collection, and optionally raises an exception if the specified control is not within the control collection.

GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

检索对用于循环访问 Control.ControlCollection 的枚举数对象的引用。Retrieves a reference to an enumerator object that is used to iterate over a Control.ControlCollection.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

返回此实例的哈希代码。Returns the hash code for this instance.

GetType() GetType() GetType() GetType()

获取当前实例的 TypeGets the Type of the current instance.

(Inherited from Object)
IndexOf(Control) IndexOf(Control) IndexOf(Control) IndexOf(Control)

检索控件集合中指定控件的索引。Retrieves the index of the specified control in the control collection.

IndexOfKey(String) IndexOfKey(String) IndexOfKey(String) IndexOfKey(String)

检索指定项在集合中的第一个匹配项的索引。Retrieves the index of the first occurrence of the specified item within the collection.

MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(Inherited from Object)
Remove(Control) Remove(Control) Remove(Control) Remove(Control)

从控件集合中移除指定的控件。Removes the specified control from the control collection.

RemoveAt(Int32) RemoveAt(Int32) RemoveAt(Int32) RemoveAt(Int32)

在指定的索引位置从控件集合移除控件。Removes a control from the control collection at the specified indexed location.

RemoveByKey(String) RemoveByKey(String) RemoveByKey(String) RemoveByKey(String)

移除具有指定键的子控件。Removes the child control with the specified key.

SetChildIndex(Control, Int32) SetChildIndex(Control, Int32) SetChildIndex(Control, Int32) SetChildIndex(Control, Int32)

将集合中的指定子控件的索引设置为指定的索引值。Sets the index of the specified child control in the collection to the specified index value.

ToString() ToString() ToString() ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)

显式界面实现

ICloneable.Clone() ICloneable.Clone() ICloneable.Clone() ICloneable.Clone()

有关此成员的说明,请参见 Clone()For a description of this member, see Clone().

IList.Add(Object) IList.Add(Object) IList.Add(Object) IList.Add(Object)

有关此成员的说明,请参见 Add(Object)For a description of this member, see Add(Object).

IList.Contains(Object) IList.Contains(Object) IList.Contains(Object) IList.Contains(Object)

有关此成员的说明,请参见 Contains(Object)For a description of this member, see Contains(Object).

IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object) IList.IndexOf(Object)

有关此成员的说明,请参见 IndexOf(Object)For a description of this member, see IndexOf(Object).

IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object) IList.Insert(Int32, Object)

有关此成员的说明,请参见 Insert(Int32, Object)For a description of this member, see Insert(Int32, Object).

IList.Remove(Object) IList.Remove(Object) IList.Remove(Object) IList.Remove(Object)

有关此成员的说明,请参见 Remove(Object)For a description of this member, see Remove(Object).

扩展方法

Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable)

IEnumerable 的元素强制转换为指定的类型。Casts the elements of an IEnumerable to the specified type.

OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable)

根据指定类型筛选 IEnumerable 的元素。Filters the elements of an IEnumerable based on a specified type.

AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable)

启用查询的并行化。Enables parallelization of a query.

AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable)

IEnumerable 转换为 IQueryableConverts an IEnumerable to an IQueryable.

适用于

另请参阅