Thanks For your solution it helps me to solve the problem. Regarding Validation in prism i have some doubts. I created a custom window to show all the
validation Messages and implemented in IDataErrorInfo. Validation are need to check in all textboxes in the form based on GotFocus and LostFocus Events. But
Message Window will firing in initialization itself for some of textboxes where i validate string is null or empty. I tried a lot and i didn't found any solution. Can you help
me to solve this problem?
Thanks In Advance,