File not get when use asyncpostbacktrigger

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i am using mnultiple asp:UpdatePanel in one asp:UpdatePanel so, i can't used postbacktrigger

What I have tried:

<asp:AsyncPostBackTrigger ControlID="btnUploadImage" EventName = "Click"/>
<asp:PostBackTrigger ControlID="btnUploadImage" />

Posted 27-Jun-17 20:43pm

Member 12665681

Updated 28-Jun-17 2:45am

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Thomas Nielsen - getCore 28-Jun-17 4:15am

don't put a panel in a panel as the updatepanels update on different situation, they should update their content, and that content shouldn't be other updatepanels.
You have to submit more code for the solution to be adviceable upon.

F-ES Sitecore 28-Jun-17 4:50am

FileUpload doesn't work in an asynch updatepanel anyway so if you have an upload control ditch the updatepanel.

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Kornfeld Eliyahu Peter · Answer 1 · 2017-06-28T02:45:00

FileUpload Class (System.Web.UI.WebControls)[^]:
The FileUpload control is designed to be used only in postback scenarios and not in asynchronous postback scenarios during partial-page rendering.

That's the problem...
However there are several controls/solutions that solve the problem - use the Google 12665681...