ToolTip for Border
<Window x:Class="SimpleStyles.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="SimpleStyles" Background="#F8F8F8"> <ScrollViewer> <WrapPanel> <HeaderedItemsControl Header="ToolTip"> <StackPanel> <Border Margin="8" Background="#EEE" Width="150" Height="50" CornerRadius="2"> <Border.ToolTip> This is a test tooltip! Woohoo! </Border.ToolTip> <TextBlock Foreground="#AAA" VerticalAlignment="Center" HorizontalAlignment="Center">(Hover Over Me)</TextBlock> </Border> </StackPanel> </HeaderedItemsControl> </WrapPanel> </ScrollViewer> </Window>