<telerik:RadDropDownButton DropDownWidth="400" DropDownHeight="400" VerticalAlignment="Center" Content="Dialog Button">
<telerik:RadDropDownButton.DropDownContent>
<dialogs:ExplorerControl Layout="Details"/>
</telerik:RadDropDownButton.DropDownContent>
</telerik:RadDropDownButton>
When the DropDown is opened Exception in FileBrowserGridView.cs is thrown.
Hi, The fix will be available in our next official version – R3 2018 SP1, scheduled for 17-th October 2018 (Wednesday). Best regards, Ralitsa Kumanova