Form.DialogResult 屬性

參考

定義

命名空間:: System.Windows.Forms

組件:: System.Windows.Forms.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

取得或設定表單的對話方塊結果。

public:
 property System::Windows::Forms::DialogResult DialogResult { System::Windows::Forms::DialogResult get(); void set(System::Windows::Forms::DialogResult value); };

[System.ComponentModel.Browsable(false)]
public System.Windows.Forms.DialogResult DialogResult { get; set; }

[<System.ComponentModel.Browsable(false)>]
member this.DialogResult : System.Windows.Forms.DialogResult with get, set

Public Property DialogResult As DialogResult

屬性值

DialogResult

DialogResult，代表表單在當做對話方塊使用時的結果。

屬性: BrowsableAttribute

例外狀況

InvalidEnumArgumentException

指定的值超過有效值的範圍。

範例

下列範例會顯示表單做為對話方塊，並顯示訊息方塊，指出表單的 [確定] 或 [取消] 按鈕是藉由參考 DialogResult 表單的屬性來按一下。

void CreateMyForm()
{
   
   // Create a new instance of the form.
   Form^ form1 = gcnew Form;
   
   // Create two buttons to use as the accept and cancel buttons.
   Button^ button1 = gcnew Button;
   Button^ button2 = gcnew Button;
   
   // Set the text of button1 to "OK".
   button1->Text = "OK";
   
   // Set the position of the button on the form.
   button1->Location = Point(10,10);
   
   // Set the text of button2 to "Cancel".
   button2->Text = "Cancel";
   
   // Set the position of the button based on the location of button1.
   button2->Location = Point(button1->Left,button1->Height + button1->Top + 10);
   
   // Make button1's dialog result OK.
   button1->DialogResult = ::DialogResult::OK;
   
   // Make button2's dialog result Cancel.
   button2->DialogResult = ::DialogResult::Cancel;
   
   // Set the caption bar text of the form.   
   form1->Text = "My Dialog Box";
   
   // Define the border style of the form to a dialog box.
   form1->FormBorderStyle = ::FormBorderStyle::FixedDialog;
   
   // Set the accept button of the form to button1.
   form1->AcceptButton = button1;
   
   // Set the cancel button of the form to button2.
   form1->CancelButton = button2;
   
   // Set the start position of the form to the center of the screen.
   form1->StartPosition = FormStartPosition::CenterScreen;
   
   // Add button1 to the form.
   form1->Controls->Add( button1 );
   
   // Add button2 to the form.
   form1->Controls->Add( button2 );
   
   // Display the form as a modal dialog box.
   form1->ShowDialog();
   
   // Determine if the OK button was clicked on the dialog box.
   if ( form1->DialogResult == ::DialogResult::OK )
   {
      
      // Display a message box indicating that the OK button was clicked.
      MessageBox::Show( "The OK button on the form was clicked." );
      
      // Optional: Call the Dispose method when you are finished with the dialog box.
      delete form1;
   }
   else
   {
      
      // Display a message box indicating that the Cancel button was clicked.
      MessageBox::Show( "The Cancel button on the form was clicked." );
      
      // Optional: Call the Dispose method when you are finished with the dialog box.
      delete form1;
   }
}

public void CreateMyForm()
 {
    // Create a new instance of the form.
    Form form1 = new Form();
    // Create two buttons to use as the accept and cancel buttons.
    Button button1 = new Button ();
    Button button2 = new Button ();
   
    // Set the text of button1 to "OK".
    button1.Text = "OK";
    // Set the position of the button on the form.
    button1.Location = new Point (10, 10);
    // Set the text of button2 to "Cancel".
    button2.Text = "Cancel";
    // Set the position of the button based on the location of button1.
    button2.Location 
       = new Point (button1.Left, button1.Height + button1.Top + 10);
    // Make button1's dialog result OK.
    button1.DialogResult = DialogResult.OK;
    // Make button2's dialog result Cancel.
    button2.DialogResult = DialogResult.Cancel;
    // Set the caption bar text of the form.   
    form1.Text = "My Dialog Box";
 
    // Define the border style of the form to a dialog box.
    form1.FormBorderStyle = FormBorderStyle.FixedDialog;
    // Set the accept button of the form to button1.
    form1.AcceptButton = button1;
    // Set the cancel button of the form to button2.
    form1.CancelButton = button2;
    // Set the start position of the form to the center of the screen.
    form1.StartPosition = FormStartPosition.CenterScreen;
    
    // Add button1 to the form.
    form1.Controls.Add(button1);
    // Add button2 to the form.
    form1.Controls.Add(button2);
    
    // Display the form as a modal dialog box.
    form1.ShowDialog();
 
    // Determine if the OK button was clicked on the dialog box.
    if (form1.DialogResult == DialogResult.OK)
    {
       // Display a message box indicating that the OK button was clicked.
       MessageBox.Show("The OK button on the form was clicked.");
       // Optional: Call the Dispose method when you are finished with the dialog box.
       form1.Dispose();
    }
    else
    {
       // Display a message box indicating that the Cancel button was clicked.
       MessageBox.Show("The Cancel button on the form was clicked.");
       // Optional: Call the Dispose method when you are finished with the dialog box.
       form1.Dispose();
    }
 }

Public Sub CreateMyForm()
    ' Create a new instance of the form.
    Dim form1 As New Form()
    ' Create two buttons to use as the accept and cancel buttons.
    Dim button1 As New Button()
    Dim button2 As New Button()
    
    ' Set the text of button1 to "OK".
    button1.Text = "OK"
    ' Set the position of the button on the form.
    button1.Location = New Point(10, 10)
    ' Set the text of button2 to "Cancel".
    button2.Text = "Cancel"
    ' Set the position of the button based on the location of button1.
    button2.Location = New Point(button1.Left, button1.Height + button1.Top + 10)
    ' Make button1's dialog result OK.
    button1.DialogResult = DialogResult.OK
    ' Make button2's dialog result Cancel.
    button2.DialogResult = DialogResult.Cancel
    ' Set the caption bar text of the form.   
    form1.Text = "My Dialog Box"
    
    ' Define the border style of the form to a dialog box.
    form1.FormBorderStyle = FormBorderStyle.FixedDialog
    ' Set the accept button of the form to button1.
    form1.AcceptButton = button1
    ' Set the cancel button of the form to button2.
    form1.CancelButton = button2
    ' Set the start position of the form to the center of the screen.
    form1.StartPosition = FormStartPosition.CenterScreen
    
    ' Add button1 to the form.
    form1.Controls.Add(button1)
    ' Add button2 to the form.
    form1.Controls.Add(button2)
    
    ' Display the form as a modal dialog box.
    form1.ShowDialog()
    
    ' Determine if the OK button was clicked on the dialog box.
    If form1.DialogResult = DialogResult.OK Then
        ' Display a message box indicating that the OK button was clicked.
        MessageBox.Show("The OK button on the form was clicked.")
        ' Optional: Call the Dispose method when you are finished with the dialog box.
        form1.Dispose
    ' Display a message box indicating that the Cancel button was clicked.
    Else
        MessageBox.Show("The Cancel button on the form was clicked.")
        ' Optional: Call the Dispose method when you are finished with the dialog box.
        form1.Dispose
    End If
End Sub

備註

表單的對話方塊結果是當表單顯示為強制回應對話方塊時，從表單傳回的值。如果表單顯示為對話方塊，請將此屬性設定為列舉中的值 DialogResult ，會設定表單對話方塊結果的值、隱藏強制回應對話方塊，並將控制項傳回給呼叫表單。這個屬性通常是由 DialogResult 表單上控制項的 Button 屬性所設定。當使用者按一下控制項時 Button ，指派給 DialogResult 屬性 Button 的值會指派給 DialogResult 表單的屬性。

當表單顯示為強制回應對話方塊時，按一下 [ 關閉 ] 按鈕 (表單右上角的 X 按鈕) 會導致表單隱藏，並將 DialogResult 屬性設定為 DialogResult.Cancel 。 Close當使用者按一下對話方塊的 [關閉] 按鈕或設定 DialogResult 屬性值時，不會自動呼叫方法。相反地，表單會隱藏，而且可以在不建立對話方塊的新實例的情況下再次顯示。由於此行為，您必須在應用程式不再需要表單時呼叫 Dispose 表單的方法。

您可以使用這個屬性來判斷對話方塊的關閉方式，以便正確處理對話方塊中執行的動作。

注意

當使用者按一下[關閉] 按鈕時，您可以在表單事件的事件處理常式 Closing 中設定 DialogResult 屬性，以覆寫指派給 DialogResult 屬性的值。

注意

Form如果顯示為無強制回應視窗，屬性所 DialogResult 傳回的值可能不會傳回指派給表單的值，因為表單的資源會在表單關閉時自動釋放。

適用於

Form.DialogResult 屬性

定義

屬性值

例外狀況

範例

備註

適用於

另請參閱

意見反應

其他資源