Control.RenderChildren(HtmlTextWriter) Control.RenderChildren(HtmlTextWriter) Control.RenderChildren(HtmlTextWriter) Control.RenderChildren(HtmlTextWriter) Method

Definición

Envía el contenido del control secundario del control de servidor a un objeto HtmlTextWriter suministrado, que escribe el contenido que se va a representar en el cliente.Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

protected public:
 virtual void RenderChildren(System::Web::UI::HtmlTextWriter ^ writer);
protected internal virtual void RenderChildren (System.Web.UI.HtmlTextWriter writer);
abstract member RenderChildren : System.Web.UI.HtmlTextWriter -> unit
override this.RenderChildren : System.Web.UI.HtmlTextWriter -> unit
Protected Friend Overridable Sub RenderChildren (writer As HtmlTextWriter)

Parámetros

writer
HtmlTextWriter HtmlTextWriter HtmlTextWriter HtmlTextWriter

Objeto HtmlTextWriter que recibe el contenido representado.The HtmlTextWriter object that receives the rendered content.

Ejemplos

En el ejemplo siguiente se invalida el RenderChildren método en un control de servidor personalizado.The following example overrides the RenderChildren method in a custom server control. Determina si el control actual tiene todos los controles secundarios su ControlCollection objeto.It determines whether the current control has any child controls in its ControlCollection object. Si es así, usa el Count propiedad para recorrer en iteración la colección.If it does, it uses the Count property to iterate through the collection. A medida que encuentra cada control secundario, usa el RenderControl método para representar el elemento primario de control y todos sus controles secundarios en la página contenedora.As it encounters each child control, it uses the RenderControl method to render the parent control, and all of its child controls, to the containing page.

Invalidado Render método, a continuación, llama a invalidado RenderChildren método.The overridden Render method then calls the overridden RenderChildren method.

// Override default implementation to Render children according to needs. 
protected override void RenderChildren(HtmlTextWriter output)
{
   if (HasControls())
   {
      // Render Children in reverse order.
      for(int i = Controls.Count - 1; i >= 0; --i)
      {
         Controls[i].RenderControl(output);
      }
   }         
}

protected override void Render(HtmlTextWriter output)
{       
   output.Write("<br>Message from Control : " + Message);       
   output.Write("Showing Custom controls created in reverse" +
                                                    "order");         
   // Render Controls.
   RenderChildren(output);
}
' Override default implementation to Render children according to needs. 
      Protected Overrides Sub RenderChildren(output As HtmlTextWriter)
         If HasControls() Then
            ' Render Children in reverse order.
            Dim i As Integer

            For i = Controls.Count - 1 To 0 Step -1
               Controls(i).RenderControl(output)
            Next

         End If
      End Sub 'RenderChildren
      
      
      Protected Overrides Sub Render(output As HtmlTextWriter)
         output.Write(("<br>Message from Control : " + Message))
         output.Write(("Showing Custom controls created in reverse" + "order"))
         ' Render Controls.
         RenderChildren(output)
      End Sub
   End Class

Comentarios

Este método notifica a ASP.NET para procesar cualquier código de páginas Active Server (ASP) en la página.This method notifies ASP.NET to render any Active Server Pages (ASP) code on the page. Si no existe ningún código ASP en la página, este método procesa los controles secundarios del control de servidor.If no ASP code exists on the page, this method renders any child controls for the server control. Este método es invocado por el Render método.This method is called by the Render method.

Se aplica a

Consulte también: