Log in to like this post! Validation in the XamDataGrid [Infragistics] Andrew Flick / Monday, April 06, 2009 I’ve had a couple of people ask for a way to highlight a cell red in the XamDataGrid if there was some sort of validation error. Now short of us implementing support for IDataErrorInfo (which is definitely on our roadmap); the way you currently do validation is through a class that is off of all of the Editors titled ValueConstraints. ValueConstraints lets you set a condition on a column. Check out the article; it can be found here.