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Id
4146186
data
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CommentCount
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CommunityOwnedDate
CreationDate
2010-11-10T15:40:14.250
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LastActivityDate
2012-03-13T13:52:47.563
LastEditDate
2017-05-23T12:01:09.963
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2966928
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2
Score
2
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LastEditorDisplayName
text
Body
I had a similar problem. In my case the button was contained in a panel and although buttons on the parent control worked correctly the button on the child Panel control didn't. It turns out that you need to call <code>EnsureChildControls</code> in the <code>OnLoad</code> method in the child panel to ensure that <code>CreateChildControls</code> is called early enough in the <a href="http://msdn.microsoft.com/en-us/library/ms178472.aspx" rel="nofollow noreferrer">life cycle of the page</a> so that controls can respond to events. This is described briefly in <a href="https://stackoverflow.com/questions/2073282/button-click-event-not-getting-fired-in-webparts-when-inherited-from-other-webpar/2074423#2074423">this answer here</a> which is where I discovered the solution to my problem. Following this instruction I just added the following code to my panel control: <pre><code> protected override void OnLoad(EventArgs e) { EnsureChildControls(); base.OnLoad(e); } </code></pre> I notice that there appears to be a lot of confusion about this issue in the forums so to demonstrate that this works I added trace statements to my code. Below are the results from the before and after cases. Note that the position of <code>Survey list creating child controls</code> moves from within the PreRender event to within the Load event. Before: <img src="https://i.stack.imgur.com/SCK6D.png" alt="Before making the change to call EnsureChildControls in the OnLoad override"> After: <img src="https://i.stack.imgur.com/5aF4o.png" alt="After making the change to call EnsureChildCOntrols in the OnLoad override which shows the child controls being created in the correct place in the page life cycle">
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1. POMy webpart event handling does not fire in SharePoint
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