Button.RenderContents(HtmlTextWriter) Método
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Representa el contenido del control en el sistema de escritura especificado.
protected:
override void RenderContents(System::Web::UI::HtmlTextWriter ^ writer);
protected public:
override void RenderContents(System::Web::UI::HtmlTextWriter ^ writer);
protected override void RenderContents (System.Web.UI.HtmlTextWriter writer);
protected internal override void RenderContents (System.Web.UI.HtmlTextWriter writer);
override this.RenderContents : System.Web.UI.HtmlTextWriter -> unit
Protected Overrides Sub RenderContents (writer As HtmlTextWriter)
Protected Friend Overrides Sub RenderContents (writer As HtmlTextWriter)
Parámetros
- writer
- HtmlTextWriter
Objeto HtmlTextWriter que representa el flujo de salida para representar contenido HTML en el cliente.
Ejemplos
En el ejemplo de código siguiente se muestra cómo invalidar el RenderContents método en un control de servidor personalizado para que siempre muestre texto después de un control de servidor personalizado Button .
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page language="c#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Custom Button - RenderContents - C# Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom Button - RenderContents - C# Example</h3>
<aspSample:CustomButtonRenderContents
id="Button1"
runat="server"
Text="Button" />
</form>
</body>
</html>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ Page language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Custom Button - RenderContents - VB.NET Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom Button - RenderContents - VB.NET Example</h3>
<aspSample:CustomButtonRenderContents id="Button1" runat="server" Text="Button" />
</form>
</body>
</html>
using System.Web;
using System.Security.Permissions;
namespace Samples.AspNet.CS.Controls
{
[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class CustomButtonRenderContents : System.Web.UI.WebControls.Button
{
protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
{
// Call the base RenderContents method.
base.RenderContents(writer);
// Append some text after the button.
writer.Write("<br>Click this button for more information.");
}
}
}
Imports System.Web
Imports System.Security.Permissions
Namespace Samples.AspNet.VB.Controls
<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class CustomButtonRenderContents
Inherits System.Web.UI.WebControls.Button
Protected Overrides Sub RenderContents(ByVal writer As System.Web.UI.HtmlTextWriter)
MyBase.RenderContents(writer)
' Append some text after the button.
writer.Write("<br>Click this button for more information.")
End Sub
End Class
End Namespace