1:System.Web.UI.WebControls.TextBox a;
//获得焦点
a.Attributes["onfocus"]="javascript:alert('hello');";
//失去焦点
a.Attributes["onblur"]="javascript:alert('hello');";
//获得焦点
a.Attributes["onfocus"]="javascript:alert('hello');";
//失去焦点
a.Attributes["onblur"]="javascript:alert('hello');";
解决方案 »
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this.tb.Focus();
this.tb.SelectionStart=0;
this.tb.SelectionLength=3;
<asp:TextBox id="TextBox2" onfocus="check()" style="Z-INDEX: 102; LEFT: 51px; POSITION: absolute; TOP: 75px" runat="server"></asp:TextBox>
<asp:TextBox id="TextBox3" onfocus="check()" style="Z-INDEX: 103; LEFT: 51px; POSITION: absolute; TOP: 115px" runat="server"></asp:TextBox>
<asp:Label id="Label1" style="Z-INDEX: 104; LEFT: 358px; POSITION: absolute; TOP: 39px" runat="server" Width="180px">Label</asp:Label>
<script language="javascript">
<!--
function check()
{
var obj = event.srcElement;
var top = obj.offsetTop + obj.offsetHeight;
var left = obj.offsetLeft;
Label1.style.top = top;
Label1.style.left = left;
}
//-->
</script>
<html>
<head>
<SCRIPT>
function fnTrackMouse(){
oNotice.innerText="Coords: (" + event.clientX + "," + event.clientY + ")";
}
</SCRIPT>
</head>
<body onmousemove="fnTrackMouse()">
<SPAN ID="oNotice"></SPAN>
</body>
</html>
做这个先学学jsp吧,我也郁闷过!