ASP.NET Ajax is removing javascript function defined on onclick attribute after partial postback

Asked Aug 19 '16 at 13:29

Active Aug 19 '16 at 14:36

Viewed 92 times

We have a CheckboxList & each item of this CheckboxList has one javascript function (clearcheckboxes()) defined for onclick attribute.

This CheckboxList is inside the UpdatePanel & Trigger is defined for this as well.

On the initial Page Load, I can see the defined javascript function on the each list item as below:

<input type="checkbox" value="0" onclick="javascript:clearcheckboxes('page_0_chbxList',this.id);setTimeout('__doPostBack(\'page_0$chbxList$0\',\'\')', 0)" checked="checked" name="page_0$chbxList$0" id="page_0_chbxJobList_0">

But when I select any checkbox & page get partially reload it removes the javascript function from onclick attribute :

<input type="checkbox" value="2" onclick="javascript:setTimeout('__doPostBack(\'page_0$chbxList$2\',\'\')', 0)" checked="checked" name="page_0$chbxList$2" id="page_0_chbxList_2">

How we can prevent removal our custom onclick javascript function on partial postback?

edited Aug 19 '16 at 14:36

Jonathan Newton

asked Aug 19 '16 at 13:29

Vikram

try moving inline onclick functions to a fixed one – Ja9ad335h Aug 19 '16 at 13:37
how do you bind the onclick events, are you rebinding it after the ajax has fired? – Pete Aug 19 '16 at 15:11
@Pete onclick attribute is added via C# code & yes we are rebinding CheckboxList control after ajax. – Vikram Aug 22 '16 at 14:21

ASP.NET Ajax is removing javascript function defined on onclick attribute after partial postback

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