Question

I have a page where I am loading a another page and a js file. The child page has a hidden field

 <input type="hidden" name="eventOk" id="eventOk" value="" />

This child page has a an event which is setting value of this variable:

function onEndClientCallBack(sender, eventArgs) {              
            $('#eventOk').val('5')
            alert('1 value is' + $('#eventOk').val());        
        }

The alert is showing that value is set properly. Now I want to use this value inside the js file which is loaded in the frame but when I alert the value it shows blank value. how can I set the value in aspx page and use in js file ?

Please suggest. Thanks.

Answer 1

You have to add runat=”server” attribute to the hidden field to access that in your server side code.

<input type="hidden" name="eventOk" id="eventOk" value="" runat="server" />

Then you can use the following code to set the value (C#)

eventOk.Value = "test value";

and your jQuery code will be

$("#eventOk").val();