MahApps/MahApps.Metro — pull request #357 by punker76 (2013-02-23 00:31:03+00:00)
Title: Validationerror example and improvements for issue #349

+ add simple validation example
* we don't need to set the Validation.ErrorTemplate to {x:Null}. only change the SnapsToDevicePixels to true to see a better border layout.
+ added example for ComboBox
! fix System.InvalidOperationException at ComboBox Style. remove the Storyboard.TargetName="validationTooltip" at
* LostFocus for UpdateSourceTrigger should also work