Hi Simon,
From your description, what you want to do is let the usercontrol and its
container page or other user control on the same page communicate or share
some data with each other , correct?
As for the communication, would you provide some further details about what
process will a typical communication between them followup? Generally,
since the UserControl has the "Page" property, I think you can try define
some custom properties on the Page class and then let the usercontrol get
reference to its container page, and set those custom properties to forward
certain data(from user control to page).
If you want to share data between different usercontrol instance, I think
it is necessary to perform FindControl from page. For example, one
usercontrol first get reference to its container page, and then search for
another usercontrol on the page(and access properties on that usercontrol).
However, FindControl require you to know the control hierarchy/structure
on the page.
Anyway, please feel free to let me know if you have further particular
requirements or concerns here.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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