Set style attributes : Style « ASP.net Controls « ASP.NET Tutorial
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- Style
<%@ Page Language="C#"
AutoEventWireup="true"
CodeFile="Default.aspx.cs"
Inherits="StyleAttributes" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="TextBox1" runat="server" type="text" /></div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class StyleAttributes : System.Web.UI.Page
{
protected void Page_Load(object sender, System.EventArgs e)
{
if (!Page.IsPostBack)
{
TextBox1.Style["font-size"] = "20px";
TextBox1.Style["color"] = "red";
TextBox1.Style.Add("background-color", "lightyellow");
TextBox1.Value = "<Enter e-mail address here>";
TextBox1.Attributes["onfocus"] = "alert(TextBox1.value)";
}
}
}