Let me make a quick clarification about our RadTabControl
. By default the content of a RadTabItem
is loaded when you select that item. And that content is cleared when you select other RadTabItem
, in order to load the newly selected RadTabItem.Content.
This is why you can only get the validation of the currently selected tab. However, you can set the x:Name
properties and then traverse all the tabs and fill the Errors
collection of the ValidationSummary
control. For more information you can read this forum thread
. Also you can find a similar behavior implemented in the attached project.
Pavel R. Pavlov
the Telerik team