How to Programmatically show a WPF/C# Windows.Control.ToolTip?

Question

There doesn't seem to be a .Show() kind of method for the Windows.Control.ToolTip, incl in ToolTipService.

Accepted Answer

What you need to do is make sure the ToolTip on the control is of type ToolTip. Then you can set the IsOpen property to true like so:

```
ToolTip tooltip = new ToolTip{ Content = "My Tooltip" };
NameTextBox.ToolTip = tooltip;
tooltip.IsOpen = true;    
```

Solution