Control.ContextMenuChanged Evento

Definizione

Spazio dei nomi:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Origine:

Control.cs

Attenzione

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

Si verifica quando il valore della proprietà ContextMenu cambia.

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 

Tipo evento

EventHandler

Attributi

BrowsableAttribute ObsoleteAttribute

Esempio

Nell'esempio di codice seguente viene visualizzato un messaggio quando si verifica una modifica al menu di scelta rapida.

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

Commenti

Questo evento viene generato se la ContextMenu proprietà viene modificata da una modifica a livello di codice o da un'interazione dell'utente.

Per ulteriori informazioni sulla gestione degli eventi, consultare gestione e generazione di eventi.

Vedi anche

• OnContextMenuChanged(EventArgs)
• ContextMenu
• ContextMenu