Control.CreateControlCollection Méthode

Définition

Crée un objet ControlCollection pour contenir les contrôles enfants (littéraux et serveur) du contrôle serveur.Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control.

protected:
 virtual System::Web::UI::ControlCollection ^ CreateControlCollection();
protected virtual System.Web.UI.ControlCollection CreateControlCollection ();
abstract member CreateControlCollection : unit -> System.Web.UI.ControlCollection
override this.CreateControlCollection : unit -> System.Web.UI.ControlCollection
Protected Overridable Function CreateControlCollection () As ControlCollection

Retours

ControlCollection

Objet ControlCollection pour contenir les contrôles serveur enfants du contrôle serveur actuel.A ControlCollection object to contain the current server control's child server controls.

Exemples

L’exemple de code suivant substitue la CreateControlCollection méthode pour créer une instance d’une CustomControlCollection classe qui hérite de la ControlCollection classe.The following code example overrides the CreateControlCollection method to create an instance of a CustomControlCollection class, which inherits from the ControlCollection class.

// Override the CreateControlCollection method to 
// write to the Trace object when tracing is enabled
// for the page or application in which this control
// is included.   
protected override ControlCollection CreateControlCollection()
{
    return new CustomControlCollection(this);
}
' Override the CreateControlCollection method to 
' write to the Trace object when tracing is enabled
' for the page or application in which this control
' is included.   
Protected Overrides Function CreateControlCollection() As ControlCollection
    Return New CustomControlCollection(Me)
End Function

L’exemple de code suivant utilise la CreateControlCollection méthode dans une substitution de contrôle serveur personnalisée de la CreateChildControls méthode.The following code example uses the CreateControlCollection method in a custom server control override of the CreateChildControls method. La nouvelle collection est créée, puis remplie avec deux contrôles enfants firstControl et secondControl .The new collection is created, and then populated with two child controls, firstControl and secondControl.


protected override void CreateChildControls()
{               
   // Creates a new ControlCollection. 
   this.CreateControlCollection();

   // Create child controls.
    ChildControl firstControl = new ChildControl();
   firstControl.Message = "FirstChildControl";

   ChildControl secondControl = new ChildControl();
   secondControl.Message = "SecondChildControl";
   
   Controls.Add(firstControl);
   Controls.Add(secondControl);

   // Prevent child controls from being created again.
   ChildControlsCreated = true;
}

Protected Overrides Sub CreateChildControls()
   ' Creates a new ControlCollection. 
   Me.CreateControlCollection()
   
   ' Create child controls.
   Dim firstControl As New ChildControl()
   firstControl.Message = "FirstChildControl"
   
   Dim secondControl As New ChildControl()
   secondControl.Message = "SecondChildControl"
   
   Controls.Add(firstControl)
   Controls.Add(secondControl)
   
   ' Prevent child controls from being created again.
   ChildControlsCreated = True
End Sub


Remarques

Substituez cette méthode dans un contrôle serveur personnalisé si vous avez créé un objet de collection dérivé de la ControlCollection classe.Override this method in a custom server control if you have created a collection object that is derived from the ControlCollection class. Vous pouvez ensuite instancier cette classe de collection dans la substitution de cette méthode.You can then instantiate that collection class in the override of this method.

S’applique à

Voir aussi