You can use the RadWindow's Pin command - for example set the InitialBehaviors
property to Pin
. More information on that is available in this help article
. Please note that this affects only the first showing of the RadWindow. For later ones you can use its client-side API
and more precisely the isPinned() and togglePin() methods. You can also examine this code library
which shows an approach with overriding CSS rules. Note it was created for an old version of the controls and you also need to examine all later posts.
the Telerik team
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