I would recommend you use Telerik RadWindow
control to achieve the required functionality. Please refer to the following online demo that provides a simple example how to open a window on demand,
and execute a callback command that will perform some operation on the main page: Returning Values from a Dialog
. Also, it might be helpful to investigate Using RadWindow as a Dialog
topic that discusses RadWindow
events and properties which you need to create dialogs.
Do let us know if you need any further assistance.
the Telerik team
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