Hi
I'm working with the may release of the toolkit.
When the target texbox for the popup control is inside an UpdatePanel that gets updated, you get this error:
Assertion failed: Duplicate use of id "_ctl00_ContentPlaceHolder1_DateTextBox" for object of type "AtlasControlToolkit.PopupControlBehavior"
To reproduce it, just place the DateTextBox from the sample PopupControl.aspx inside an UpdatePanel.
This makes it impossible to use it in places like a form or a grid view, if you have au updatepanel for the whole thing.
I posted an workaround using a collapsible panel
here, but it would be nice to take advantage of the popup control.
Is there any fix for this?