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实现aspx页面中,获得焦点,高亮显示,离开时恢复 效果(完整代码)

 2009-04-15 17:42:03 来源:WEB开发网   
核心提示:<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Webapplication1._Default" %>&

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Webapplication1._Default" %>

<!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 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

Tags:实现 aspx 页面

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