Control.Render(HtmlTextWriter) Control.Render(HtmlTextWriter) Control.Render(HtmlTextWriter) Control.Render(HtmlTextWriter) Method

Definición

Envía el contenido del control de servidor al objeto HtmlTextWriter proporcionado, que escribe el contenido que se representará en el cliente.Sends server control content to a provided HtmlTextWriter object, which writes the content to be rendered on the client.

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

Parámetros

writer
HtmlTextWriter HtmlTextWriter HtmlTextWriter HtmlTextWriter

Objeto HtmlTextWriter que recibe el contenido del control de servidor.The HtmlTextWriter object that receives the server control content.

Ejemplos

En el ejemplo de código siguiente se muestra Render cómo invalidar el método.The following code example demonstrates overriding the Render method. El HasControls método se utiliza para determinar si el control de servidor tiene los controles secundarios almacenados en ControlCollection su objeto, al que se puede Control.Controls tener acceso a través de la propiedad.The HasControls method is used to determine whether the server control has any child controls stored in its ControlCollection object, which is accessible through the Control.Controls property. Si HasControls devuelve true y el primer control de servidor de la colección es texto literal, el texto literal se anexa a una cadena HTML.If HasControls returns true and the first server control in the collection is literal text, then the literal text is appended to an HTML string.

[System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] 
protected override void Render(HtmlTextWriter output) {
    if ( (HasControls()) && (Controls[0] is LiteralControl) ) {
        output.Write("<H2>Your Message: " + ((LiteralControl) Controls[0]).Text + "</H2>");
    }
}
<System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
Protected Overrides Sub Render(Output As HtmlTextWriter)
    If HasControls() And TypeOf Controls(0) Is LiteralControl
        Dim Ctrl As LiteralControl = CType(Controls(0), LiteralControl)
        Output.Write("<H2>Your Message: " & Ctrl.Text & "</H2>")
    End If
End Sub

Comentarios

Al desarrollar controles de servidor personalizados, puede invalidar este método para generar contenido para una página ASP.NET.When developing custom server controls, you can override this method to generate content for an ASP.NET page.

Se aplica a

Consulte también: