using image component of asp.net in javascript function

Question

I found a javascript code that get and set the dimension of image .
By reference this link , I write the code in my asp.net web site likes this ,

<img runat="server" id="MyImage" onload="if( this.width >  
this.height ){ this.width = 400; this.height = 600} else {this.width = 600;   
this.height=400}" />

What I want to know is how to write this javascript code in this <script> tag

 <script type="text/javascript">
   function setDimension() {

   }
</script>

If my javascript code is wrong , Kindly show me the correct code :), Thanks ! — zey
– zey, Commented May 11, 2013 at 5:38

Manoj Purohit · Accepted Answer · 2013-05-11 05:40:33Z

1

Try this

Javascript:

<script type="text/javascript">
   function setDimension(me) {
  var th= document.getElementById(me);
   if( th.width >  
th.height ){ th.width = 400; th.height = 600} else {th.width = 600;   
th.height=400}
   }
</script>

ASPX Code:

<img runat="server" id="MyImage"  />

In code behind, as onload is also a server event, you need to add custom attribute to server image control

 MyImage.Attributes["onload"] = "setDimension(this.id)";

answered May 11, 2013 at 5:40

Manoj Purohit

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