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HyperLink.AddAttributesToRender(HtmlTextWriter) Método

  • Referência

Definição

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Adiciona os atributos de um controle HyperLink ao fluxo de saída para renderização.

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)

Parâmetros

writer
HtmlTextWriter

O fluxo de saída a renderizar no cliente.

Exemplos

O exemplo de código a seguir demonstra como substituir o AddAttributesToRender método em um controle de servidor personalizado para que o HyperLink texto seja exibido em uma fonte em negrito.

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

namespace Samples.AspNet.CS.Controls
{
    [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
    public sealed class CustomHyperLinkAddAttributesToRender : System.Web.UI.WebControls.HyperLink
    {
        protected override void AddAttributesToRender(System.Web.UI.HtmlTextWriter writer)
        {
            // Show the HyperLink text as Bold 
            writer.AddStyleAttribute(System.Web.UI.HtmlTextWriterStyle.FontWeight, "bold");

            // 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 CustomHyperLinkAddAttributesToRender
        Inherits System.Web.UI.WebControls.HyperLink

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

            ' Show the HyperLink text as Bold 
            writer.AddStyleAttribute(System.Web.UI.HtmlTextWriterStyle.FontWeight, "bold")

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

O Formulário Web a seguir usa o controle de servidor personalizado para exibir um hiperlink com uma fonte em negrito.

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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 HyperLink - AddAttributesToRender - C# Example</title>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom HyperLink - AddAttributesToRender - C# Example</h3>

            <aspSample:CustomHyperLinkAddAttributesToRender 
             id="HyperLink1" runat="server" Target="_blank"
             NavigateUrl="http://www.microsoft.com/"  
             ToolTip="Microsoft Web Site">www.microsoft.com
            </aspSample:CustomHyperLinkAddAttributesToRender>

        </form>
    </body>
</html>

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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 HyperLink - AddAttributesToRender - VB.NET Example</title>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom HyperLink - AddAttributesToRender - VB.NET Example</h3>

            <aspSample:CustomHyperLinkAddAttributesToRender 
             id="HyperLink1" runat="server" Target="_blank"
             NavigateUrl="http://www.microsoft.com/"  
             ToolTip="Microsoft Web Site">www.microsoft.com
            </aspSample:CustomHyperLinkAddAttributesToRender>

        </form>
    </body>
</html>

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