用javascript来显示HTML控件的位置即javascript文件在ASP.NET中的运用

王朝asp·作者佚名  2007-05-16
窄屏简体版  字體: |||超大  

1. 首先在HTML的HEAD里加入:

<meta content="JavaScript" name="vs_defaultClientScript">

<script language="javascript" src="../../Script/persistlocation.js"></script>

2.写好上面目录下的javascript文件:

如:

/**********************************************************

* In order to get the position of HTML element,we provide *

* this file.It is a javascript code. *

* Written by Yuzhibin *

* Created on July 9 2004 *

* *

* *

***********************************************************/

function getX(elementID)

{

var el = elementID

return el.offsetLeft

}

function getY(elementID)

{

var el = elementID

return el.offsetTop

}

function getElementPositionX(elemID)

{

var offsetTrail = document.getElementById(elemID);

var offsetLeft = 0;

while(offsetTrail)

{

offsetLeft += offsetTrail.offsetLeft;

offsetTrail = offsetTrail.offsetParent;

}

if (navigator.userAgent.indexOf("Mac") != -1 &&

typeof(document.body.leftMargin) != "undefined") {

offsetLeft += document.body.leftMargin;

}

return offsetLeft;

}

function getElementPositionY(elemID)

{

var offsetTrail = document.getElementById(elemID);

var offsetTop = 0;

while(offsetTrail)

{

offsetTop += offsetTrail.offsetTop;

offsetTrail = offsetTrail.offsetParent;

}

if (navigator.userAgent.indexOf("Mac") != -1 &&

typeof(document.body.leftMargin) != "undefined") {

offsetTop += document.body.topMargin;

}

return offsetTop;

}

function getElementPositionXY(elemID)

{

var offsetTrail = document.getElementById(elemID);

var offsetLeft = 24;

var offsetTop =0;

while(offsetTrail)

{

offsetLeft += offsetTrail.offsetLeft;

offsetTop += offsetTrail.offsetTop;

offsetTrail = offsetTrail.offsetParent;

}

if (navigator.userAgent.indexOf("Mac") != -1 &&

typeof(document.body.leftMargin) != "undefined") {

offsetLeft += document.body.leftMargin;

offsetLeft += document.body.leftMargin;

}

document.getElementById("txt_left").innerText = offsetLeft;

document.getElementById("txt_top").innerText = offsetTop;

}

3. 在.CS下直接用下面的方式调用:

rhombusCalendar.pTop = "javascript:getX(btn_customerRequestDateFrom)";

或: btnCtrlAddress1.Attributes["onclick"] = "javascript:getElementPositionXY('"+lblCtrlAddress1.ClientID+"')";

 
 
 
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