Drag and drop from Visual Studio Toolbox to the designer area doesn't allow you to drop the corresponding control inside the content of the selected tab item.
To work this around, add a Grid panel with transparent background inside the RadTabItem's in XAML. You can do this also through the toolbox.
<telerik:RadTabItem x:Name="RadTabItem1" Header="Tab item 1">
<Grid Background="Transparent" />
</telerik:RadTabItem>
TabControl's TabItems aren't properly updated on attempt to change the theme palette variation runtime until any of the items is selected. Check the following video - https://www.screencast.com/t/jMj0EZqFfy.
There are several possible workarounds which include:
private
void
RadTabItem_PreviewMouseDown(
object
sender, MouseButtonEventArgs e)
{
if
(e.ChangedButton == MouseButton.Middle)
{
e.Handled =
true
;
}
}
When you select the RadTabItems via Keyboard or Mouse, Narrator or other Accessibility tools like NVDA do no read the selected tab. This is a bug in the RadTabControlAutomaitonPeer / RadTabItemAutomationPeer's code. Usually screen readers read "Selected Tab One", "Selected Tab 2". This is how MS TabControl is read actually.