I was wondering what the best method is to change the Bind behaviour of the Textbox and Passwordbox control.
Now the underlying VM property changes on each keystroke (a TextChange event is added in the framework).
Normally this behaviour is preferred (and thus the default), but when working with WCF RIA Services this behaviour can cause problems.
I have an RIA entity with a RegularExpression (for an email) validation attribute on one of its properties, when bind to a textbox the validation is handled correctly.
The problem is that the validation should only occur on FocusLost and not on TextChanged, any ideas on this?