Question

I’ve two updatepanel in the same page.
In one, there is a datalist while in other there is a modal popup.
In modal popup I have a Save button that update datalist’s data. In effect Save button work correctly and data are updated but to see updated data in datalist I must do a postback while I would that Save button occur an asyncpostback and datalist show me updated data after Save Button’ Click.

I do this in updatepanel of modalpopup:

<Triggers>
      <asp:AsyncPostBackTrigger ControlID="btnSave" EventName="Click" />
</Triggers>

P.S Sorry for my English!

Answer 1

Do the same thing for the UpdatePanel you want to update (that contains the DataList):

<Triggers>
  <asp:AsyncPostBackTrigger ControlID="btnSave" EventName="Click" />
</Triggers>

Since a child of the UpdatePanel isn’t triggering the postback, it doesn’t know to refresh, telling it explicitly that when btnSave is clicked it should do so should solve your issue.