I am using the RadMaskedTextInput to contain a last name, a first name, city and several other random strings. I am trying to have the validation just test whether there is data in the field. I found a help file for doing something similar on the MaskedTextBox, but nothing for the more generic TextInput. Any help would be greatly appreciated.
The Validation help http://www.telerik.com/help/wpf/radmaskedinput-features-validation.html
contains an exception called ValidationException which I cannot find a reference to in my Visual Studios. This looked like the proper way to go, but without access to that Exception I am stuck.