Hide tooltip if binding is null

Question

Currently i\'ve got the following code to show a tooltip.

Answer 1

If just using the default tooltip I would otherwise recommend either setting the bound value to null in the viewmodel or using a converter whenever the item is empty.

In my case I've got a:

public string Name { get; }

Bound using:

Where the idea is to show the full name in the tooltip if cut of due to lack of width. In my viewmodel I simply:

if (string.IsNullOrEmpty(Name)) Name = null;

At least in .Net 4.0 this will not show a tooltip for me.