Rank: Member
Groups: Member
Joined: 3/4/2011
Posts: 12
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I am only able to add a CallbackPanel in Design view. If I add one while in Source view and switch back to Design, I see the following message where the control should be:
Error Creating Control - CallbackPanel1
Unknown server tag 'eo.CallbackPanel'.
<%@ Register assembly="EO.Web" namespace="EO.Web" tagprefix="eo" %>
is located at the top of the page and
using EO.Web is in the Page behind
All other EO.Web controls display properly if they are not contained within a CallbackPanel. If the CallbackPanel looks correct when in Design view and I switch to Source, make a small change and switch back to Design, I will see the error message. However, the application works properly.
My problem is I would like to make changes in both Design and Source view.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,194
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Hi,
We can not think any reason that would cause this error. You can try to isolate the problem into a test project and see if it occurs with the test project. If it does occur, send the test project to us and we will be happy to take a look.
Thanks
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