其目的大概与 之前一篇文章
屏蔽Button按钮对Enter回车键的响应 及实现Enter->Tab效果
相似
都是为了防止
按钮对回车键等非点击动作
进行响应 而引起不必要的误操作
========== 前台页面 ============
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!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>无标题页</title>
<script language="javascript" type="text/javascript">
var nowMouseClick = "";
function fn_onmousedown()
{
nowMouseClick = event.srcElement.id;
}
function fn_onclick()
{
if(nowMouseClick == event.srcElement.id)
{
nowMouseClick = "";
return true;
}
else
{
if(event.srcElement.id == "ImageButton1")
{
document.all.Button1.focus();
}
else if(event.srcElement.id == "Button1")
{
document.all.Text1.focus();
}
return false;
}
}
function fn_Text1_onkeydown()
{
if(event.keyCode==13)
{
document.all.Text2.focus();
event.keyCode = 0;
event.returnValue = false;
}
}
function fn_Text2_onkeydown()
{
if(event.keyCode==13)
{
document.all.ImageButton1.focus();
event.keyCode = 0;
event.returnValue = false;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<input id="Text1" type="text" onkeydown="fn_Text1_onkeydown();"/>
<input id="Text2" type="text" onkeydown="fn_Text2_onkeydown();"/>
<br />
<asp:ImageButton ID="ImageButton1" runat="server" OnClick="ImageButton1_Click" />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
</form>
</body>
</html>
========= 后台代码 =============
public partial class Default3 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.ImageButton1.Attributes.Add("onmousedown", "fn_onmousedown();");
this.ImageButton1.Attributes.Add("onclick", "return fn_onclick();");
this.Button1.Attributes.Add("onmousedown", "fn_onmousedown();");
this.Button1.Attributes.Add("onclick", "return fn_onclick();");
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
Response.Write("ImageButton1 serve event");
}
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("Button1 serve event");
}
}