I put target elements in Panel or placeholder, and there is not any more error.
Httpexception The Controls collection cannot be modified because the control contains code blocks
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14-04-2022 - |
Question
I try to add a user control by ajax but I have The same problem of This One, and the suggested solution is Remove <%= From head of page, but my master page is:
As you see there is not any <%=
character in head of page, So where is the problem? why I get the error yet?
any suggestion?
La solution
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