xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="WPF" Height="200" Width="300">
ToolTipService.Placement="Relative"
ToolTipService.ShowDuration="10000"
ToolTipService.VerticalOffset="50px">
ToolTip displayed for 10 seconds...
Button with offset ToolTip