<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Webapplication1._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "<html xmlns="<head runat="server">
<title>Untitled Page</title>
<style>
.highlight
{
background-color: yellow;
color: blue;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:textbox runat="server" ></asp:textbox>
</div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</form>
</body>
</html>
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
namespace WebApplication1
{
public static class Assistant
{
public static void SetInputControlsHighlight(Control container, string className, bool onlyTextBoxes)
{
foreach (Control ctl in container.Controls)
{
if ((onlyTextBoxes && ctl is TextBox) || (!onlyTextBoxes && (ctl is TextBox || ctl is DropDownList || ctl is ListBox || ctl is CheckBox || ctl is RadioButton || ctl is RadioButtonList || ctl is CheckBoxList)))
{
WebControl wctl = ctl as WebControl;
wctl.Attributes.Add("onfocus", string.Format(
"this.className = '{0}';", className));
wctl.Attributes.Add("onBlur", "this.className='';");
}
else
{
if (ctl.Controls.Count > 0)
SetInputControlsHighlight(ctl, className, onlyTextBoxes);
}
}
}
}
}
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
namespace WebApplication1
{
public partial class _Default : System.Web.UI.Page
{
PRotected void Page_Load(object sender, EventArgs e)
{
Assistant.SetInputControlsHighlight(this, "highlight", false);
}
}
}
http://blog.csdn.net/metababy/archive/2009/04/14/4072424.aspx
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