Tag Property (UIElement)
Gets or sets an object that can be used for user storage or information passing.
<object Tag="objectvalue" .../>
value = object.tag
object.tag = value
An arbitrary user-determined string.
This property is read/write. The default value is null.
This property has a similar purpose to "Tag" in other programming models; it provides a property that can be used to pass information between objects, or can provide a means of customization or differentiation between defined object types.