Control.ContextMenuChanged 事件

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

來源:

Control.cs

警告

ContextMenu is provided for binary compatibility with .NET Framework and is not intended to be used directly from your code. Use ContextMenuStrip instead.

發生於 ContextMenu 屬性的值變更時。

public:
 event EventHandler ^ ContextMenuChanged;

[System.ComponentModel.Browsable(false)]
[System.Obsolete("`ContextMenu` is provided for binary compatibility with .NET Framework and is not intended to be used directly from your code. Use `ContextMenuStrip` instead.", false, DiagnosticId="WFDEV006", UrlFormat="https://aka.ms/winforms-warnings/{0}")]
public event EventHandler ContextMenuChanged;

[<System.ComponentModel.Browsable(false)>]
[<System.Obsolete("`ContextMenu` is provided for binary compatibility with .NET Framework and is not intended to be used directly from your code. Use `ContextMenuStrip` instead.", false, DiagnosticId="WFDEV006", UrlFormat="https://aka.ms/winforms-warnings/{0}")>]
member this.ContextMenuChanged : EventHandler 

Public Custom Event ContextMenuChanged As EventHandler 

事件類型

EventHandler

屬性

BrowsableAttribute ObsoleteAttribute

範例

以下程式碼範例在捷徑選單發生變更時會顯示訊息。

private:
   void AddContextMenuChangedHandler()
   {
      this->myTextBox->ContextMenuChanged += gcnew EventHandler( this, &MyForm::TextBox_ContextMenuChanged );
   }

   void TextBox_ContextMenuChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      MessageBox::Show( L"Shortcut menu of TextBox is changed." );
   }

private void AddContextMenuChangedHandler()
{
   this.myTextBox.ContextMenuChanged += new EventHandler(TextBox_ContextMenuChanged);
}

private void TextBox_ContextMenuChanged(object sender, EventArgs e)
{
   MessageBox.Show("Shortcut menu of TextBox is changed.");
}

Private Sub AddContextMenuChangedHandler()
   AddHandler Me.myTextBox.ContextMenuChanged, AddressOf TextBox_ContextMenuChanged
End Sub

Private Sub TextBox_ContextMenuChanged(sender As Object, e As EventArgs)
   MessageBox.Show("Shortcut menu of TextBox is changed.")
End Sub

備註

若屬性因程式修改或使用者互動而變更， ContextMenu 則會觸發此事件。

如需處理事件的詳細資訊，請參閱 處理和引發事件。

另請參閱

• OnContextMenuChanged(EventArgs)
• ContextMenu
• ContextMenu