acces an object in user control with javascript

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3/12/2010 3:35:03 PM
Hanzie
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acces an object in user control with javascript

Hello, i have made a custom module (guestbook).

In this custom module (*.ascx file) i have a textbox with id="txtMessage".

How can i acces this object with javascript. I now have this:

<script type="text/javaScript">
var dob = '<%= txtMessage.ClientID %>';
</script>

But i don't seem to manage to get acces to this control.

The only reason i can imagine is that there is some extra control/page/module between the custom-module and the main page.

In the sourcecode of the webpage i see "maincontent" standing before "txtmessage".

 

Please help!

3/13/2010 10:22:19 AM
Joe Audette
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Re: acces an object in user control with javascript

Hi Hanzie,

The ClientID is just the id string that the control will render it does not give a reference to the control itself, to get the value of the TextBox you would do it like this:

var dob = document.getElementById( '<%= txtMessage.ClientID %>').value;

or more clean using jQuery

var dob = $('#<%= txtMessage.ClientID %>').val();

Hope it helps,

Joe

3/13/2010 11:30:13 AM
Hanzie
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Re: acces an object in user control with javascript

Hello Joe,

Thnx for youre reply. So you mean I wasn't refering/accesing the textbox, I only declared the clientid from the textbox to the variable dob.

I needed a way to put a smiley on the textbox. I managed now with this line:

var dob = document.getElementById('<%= txtMessage.ClientID %>'); //acces the textbox

THNX AGAIN!

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