calling a code behind member from javascript

Question

I have an ASPX.CS code:

Protected int myprop

I would like to call it on a JS assignment :

<script type='text/javascript'>
...
 data.add(['SomeJSProperty', "<%..myprop from code behind%>"]);

I remember doing it with <% %> inline code and it used to view the code behind protected and public members. but it won't work now.

Thanks

BTW, that's not calling code behind member from JavaScript, mind you. That will just render the output of the expression enclosed within <%= %> in your JavaScript, and that happens before the JavaScript code block is run. — Saeb Amini
– Saeb Amini, Commented Mar 19, 2012 at 10:36

magnattic · Accepted Answer · 2012-03-19 10:23:49Z

2

Try this:

<script type='text/javascript'>
...
data.add(['SomeJSProperty', "<%= myprop %>"]);

More info on MSDN.

answered Mar 19, 2012 at 10:23

magnattic

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3 Comments

David Rasuli Over a year ago

Hi, I tried this but from some reason I am getting this error:The Controls collection cannot be modified because the control contains code blocks

magnattic Over a year ago

Add more code to the question then. The info you gave is not enough to solve your problem.

David Rasuli Over a year ago

had to warp the <script> with a runat=server control

Paul Rusu · Accepted Answer · 2012-03-19 10:48:25Z

0

In the page_load you can add a input type='hidden' value='my prop' to the page. and from javascript when document is ready you can simply read that value from the hidden input.

answered Mar 19, 2012 at 10:48

Paul Rusu

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