Table.AddAttributesToRender(HtmlTextWriter) Método

  • Referencia

Definición

Espacio de nombres:
System.Web.UI.WebControls
Ensamblado:
System.Web.dll

Agrega atributos y estilos HTML que se deben representar en el HtmlTextWriter especificado.

protected:
 override void AddAttributesToRender(System::Web::UI::HtmlTextWriter ^ writer);
protected override void AddAttributesToRender (System.Web.UI.HtmlTextWriter writer);
override this.AddAttributesToRender : System.Web.UI.HtmlTextWriter -> unit
Protected Overrides Sub AddAttributesToRender (writer As HtmlTextWriter)

Parámetros

writer
HtmlTextWriter

Flujo de salida que representa el contenido HTML en el cliente.

Ejemplos

En el ejemplo de código siguiente se muestra cómo invalidar el AddAttributesToRender método en un control de servidor personalizado para agregar un atributo a Table.

<%@ Page Language="C#" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>

<!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 id="Head2" runat="server">
    <title>Custom Table - AddAttributesToRender - C# Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>Custom Table - AddAttributesToRender - C# Example</h3>

    <aspSample:CustomTableAddAttributesToRender 
        id="Table1" runat="server"
        GridLines="Both" CellPadding="4">
        <asp:TableRow>
            <asp:TableCell>Row 0, Col 0</asp:TableCell>
            <asp:TableCell>Row 0, Col 1</asp:TableCell>
        </asp:TableRow>
        <asp:TableRow>
            <asp:TableCell>Row 1, Col 0</asp:TableCell>
            <asp:TableCell>Row 1, Col 1</asp:TableCell>
        </asp:TableRow>
    </aspSample:CustomTableAddAttributesToRender>
      
    </div>
    </form>
</body>
</html>

<%@ Page Language="VB" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.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 id="Head2" runat="server">
    <title>Custom Table - AddAttributesToRender - VB Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <h3>Custom Table - AddAttributesToRender - VB Example</h3>

    <aspSample:CustomTableAddAttributesToRender 
        id="Table1" runat="server"
        GridLines="Both" CellPadding="4">
        <asp:TableRow>
            <asp:TableCell>Row 0, Col 0</asp:TableCell>
            <asp:TableCell>Row 0, Col 1</asp:TableCell>
        </asp:TableRow>
        <asp:TableRow>
            <asp:TableCell>Row 1, Col 0</asp:TableCell>
            <asp:TableCell>Row 1, Col 1</asp:TableCell>
        </asp:TableRow>
    </aspSample:CustomTableAddAttributesToRender>
      
    </div>
    </form>
</body>
</html>

using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
  [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)]
  public sealed class CustomTableAddAttributesToRender : System.Web.UI.WebControls.Table
  {
    protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer)
    {
      // Add a client-side onclick event to the button.
      writer.AddAttribute(System.Web.UI.HtmlTextWriterAttribute.Onclick, "alert('Hello World');");

      // Call the base's AddAttributesToRender method.
      base.AddAttributesToRender(writer);
    }
  }
}

Imports System.Web
Imports System.Security.Permissions

Namespace Samples.AspNet.VB.Controls
    <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
    Public NotInheritable Class CustomTableAddAttributesToRender
        Inherits System.Web.UI.WebControls.Table

        Protected Overrides Sub AddAttributesToRender(ByVal writer As System.Web.UI.HtmlTextWriter)

            ' Add a client-side onclick event to the button.
            writer.AddAttribute(System.Web.UI.HtmlTextWriterAttribute.Onclick, "alert('Hello World');")

            ' Call the base's AddAttributesToRender method.
            MyBase.AddAttributesToRender(writer)
        End Sub
    End Class
End Namespace

Comentarios

Este método se usa principalmente por los desarrolladores de controles para insertar los atributos y estilos adecuados en el HtmlTextWriter flujo de salida de un Table control. Este método invalida WebControl.AddAttributesToRender.

Se aplica a

Consulte también