TemplateControl.Construct Metodo

Definizione

Esegue la logica in fase di progettazione.Performs design-time logic.

protected:
 virtual void Construct();
protected virtual void Construct ();
abstract member Construct : unit -> unit
override this.Construct : unit -> unit
Protected Overridable Sub Construct ()

Esempio

Nell'esempio di codice riportato di seguito viene illustrato come eseguire l'override del Construct metodo di un controllo personalizzato derivato dalla TemplateControl classe.The following code example demonstrates how to override the Construct method of a custom control that is derived from the TemplateControl class.

Per la definizione completa della MyControl classe, vedere TemplateControl .For the full definition of the MyControl class, see TemplateControl.

// Create an event for this user control
public event System.EventHandler myControl;

// Override the default constructor.
protected override void Construct()
{
    // Specify the handler for the OnInit method.
    this.myControl += new EventHandler(MyInit);
}

protected override void OnInit(EventArgs e)
{
    myControl(this, e);
    Response.Write("The OnInit() method is used to raise the Init event.");
}

// Use the MyInit handler to set the Message property
void MyInit(object sender, System.EventArgs e)
{
    Message = "Hello World!";
}
 ' Create an event for this user control
 Public Event myControl As System.EventHandler

 ' Override the default constructor.
 Protected Overrides Sub Construct()
     ' Specify the handler for the OnInit method.
     AddHandler Me.myControl, AddressOf MyInit
 End Sub

 Protected Overrides Sub OnInit(ByVal e As EventArgs)
     RaiseEvent myControl(Me, e)
     Response.Write("The OnInit() method is used to raise the Init event.")
 End Sub


 ' Use the MyInit handler to set the Message property
 Sub MyInit(ByVal sender As Object, ByVal e As System.EventArgs)
     Message = "Hello World!"
 End Sub

Commenti

Il Construct metodo consente l'esecuzione di codice in fase di progettazione dei Page UserControl controlli e.The Construct method allows design-time code execution of the Page and UserControl controls.

Si applica a

Vedi anche