Button.AddAttributesToRender Method
.NET Framework 3.0
This method supports the .NET Framework infrastructure and is not intended to be used directly from your code.
Adds the attributes of the Button control to the output stream for rendering on the client.
Namespace: System.Web.UI.WebControlsAssembly: System.Web (in system.web.dll)
protected void AddAttributesToRender ( HtmlTextWriter writer )
protected override function AddAttributesToRender ( writer : HtmlTextWriter )
Not applicable.
Parameters
- writer
An System.Web.UI.HtmlTextWriter that contains the output stream to render on the client.
The following code example demonstrates how to override the AddAttributesToRender method in a custom server control, so that the Button text always displays in red.
<%@ Page language="VJ#" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %>
<!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 - AddAttributesToRender - VJ# Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom Button - AddAttributesToRender - VJ# Example</h3>
<aspSample:CustomButtonAddAttributesToRender
id="Button1"
runat="server"
Text="Button" />
</form>
</body>
</html>
...
package Samples.AspNet.JSL.Controls;
public class CustomButtonAddAttributesToRender
extends System.Web.UI.WebControls.Button
{
protected 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');");
// Update the text of the button to be shown in the color Red
writer.AddStyleAttribute(System.Web.UI.HtmlTextWriterStyle.Color,
"Red");
// Call the base's AddAttributesToRender method
super.AddAttributesToRender(writer);
} //AddAttributesToRender
} //CustomButtonAddAttributesToRender
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