Hello G,
The part of the code that you posted looks good and should not be the reason for the problem. Is the
radWindow1 window already visible? If you want to show a RadWindow from the server, note that it has to have its VisibleOnPageLoad property set to true.
As for your second question, I suggest to use the client-side API (moveTo() method) to position the RadWindow.
If you continue to experience problems with your scenario, please open a support ticket and send us a small sample project that illustrates them. We will check it right away.
Best wishes,
Georgi Tunev
the Telerik team
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