How to disable validation error while using CellEditTemplate

Hi Stefan,

I'm using IDataErrorInfo. For each wpf control I'm using there's a style which sets Validation.ErrorTemplate to ErrorTopTemplate (you can see it in attachment1.png), and additionally it sets background to lightred and border to red. It works well, except for datagridview. When I use standard editor for column it works as if intedet, but every custom editor for columns behaves like threres additional errorTEmplate for cel.