ToolBar.ToolBarButtonCollection.IsReadOnly Propriété

Définition

Espace de noms:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Obtient une valeur indiquant si la collection est en lecture seule.

public:
 property bool IsReadOnly { bool get(); };

public bool IsReadOnly { get; }

member this.IsReadOnly : bool

Public ReadOnly Property IsReadOnly As Boolean

Valeur de propriété

Boolean

true si la collection est en lecture seule ; sinon, false. La valeur par défaut est false.

Implémente

IsReadOnly

Exemples

L’exemple de ToolBar code suivant supprime un contrôle existant ToolBarButton s’il existe et ajoute et insère quatre nouveaux ToolBarButton objets dans le ToolBar. Cet exemple exige que vous disposiez d’un Form ToolBar contrôle dessus.

void AddToolbarButtons( ToolBar^ toolBar )
{
   if (  !toolBar->Buttons->IsReadOnly )
   {
      
      // If toolBarButton1 in in the collection, remove it.
      if ( toolBar->Buttons->Contains( toolBarButton1 ) )
      {
         toolBar->Buttons->Remove( toolBarButton1 );
      }
      
      // Create three toolbar buttons.
      ToolBarButton^ tbb1 = gcnew ToolBarButton( "tbb1" );
      ToolBarButton^ tbb2 = gcnew ToolBarButton( "tbb2" );
      ToolBarButton^ tbb3 = gcnew ToolBarButton( "tbb3" );
      
      // Add toolbar buttons to the toolbar.
      array<ToolBarButton^>^buttons = {tbb2,tbb3};
      toolBar->Buttons->AddRange( buttons );
      toolBar->Buttons->Add( "tbb4" );
      
      // Insert tbb1 into the first position in the collection.
      toolBar->Buttons->Insert( 0, tbb1 );
   }
}

private void AddToolbarButtons(ToolBar toolBar)
{
   if(!toolBar.Buttons.IsReadOnly)
   {
      // If toolBarButton1 in in the collection, remove it.
      if(toolBar.Buttons.Contains(toolBarButton1))
      {
         toolBar.Buttons.Remove(toolBarButton1);
      }
    
      // Create three toolbar buttons.
      ToolBarButton tbb1 = new ToolBarButton("tbb1");
      ToolBarButton tbb2 = new ToolBarButton("tbb2");
      ToolBarButton tbb3 = new ToolBarButton("tbb3");
      
      // Add toolbar buttons to the toolbar.		
      toolBar.Buttons.AddRange(new ToolBarButton[] {tbb2, tbb3});
      toolBar.Buttons.Add("tbb4");
    
      // Insert tbb1 into the first position in the collection.
      toolBar.Buttons.Insert(0, tbb1);
   }
}

Private Sub AddToolbarButtons(toolBar As ToolBar)
   If Not toolBar.Buttons.IsReadOnly Then
      ' If toolBarButton1 in in the collection, remove it.
      If toolBar.Buttons.Contains(toolBarButton1) Then
         toolBar.Buttons.Remove(toolBarButton1)
      End If

      ' Create three toolbar buttons.
      Dim tbb1 As New ToolBarButton("tbb1")
      Dim tbb2 As New ToolBarButton("tbb2")
      Dim tbb3 As New ToolBarButton("tbb3")

      ' Add toolbar buttons to the toolbar.		
      toolBar.Buttons.AddRange(New ToolBarButton() {tbb2, tbb3})
      toolBar.Buttons.Add("tbb4")

      ' Insert tbb1 into the first position in the collection.
      toolBar.Buttons.Insert(0, tbb1)
   End If
End Sub