set background color programmatically : Style « Controls « ASP.NET Tutorial

<%@ Page Language="C#" %>

<script runat="server">
private void Page_Load(object sender, EventArgs e)
   TheBody.Style[HtmlTextWriterStyle.BackgroundColor] = "lightblue";    

<head><title>Background color</title></head>
<body id="TheBody" runat="server">
   <h3>The background color of this page has been set programmatically.</h3>

3.34.1.Test the border properties
3.34.2.set background color programmatically
3.34.3.This is a test of the color properties
3.34.4.Bold font
3.34.5.Working with the Font properties: Font-Italic, Font-Names,Font-Size
3.34.6.Set style attributes
3.34.7.Css style
3.34.8.Using style
3.34.9.Style server control
3.34.10.Font change