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

 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+"')";