ToolTip toolTip = new ToolTip();
toolTip.Content = "Flip switch to turn on.";
ToolTipService.SetToolTip(onOffSwitch, toolTip);
Please follow this document
http://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh868199.aspx
Best regards,
Jesse
Jesse Jiang [MSFT]
MSDN Community Support | Feedback to us
