Hi all,

I tried this on the WINFORMS forum but havent got any reply...


I have created a custom collection class which inherits from CollectionBase
class and implements the IBindingList interface. I am having a problem
regarding adding a new record and form binding. When I add a new record by
calling the AddNew() method on the CurrencyManager class instance, the
screen does not get refreshed. When I tried to figure out the problem, I
found that the position of the CurrnecyManager does not change, and it does
not fire the PositionChanged event. I figured that the
CurrnecyManager.AddNew() method calls the IBindingList.AddNew() and it
internally calls the ChangeRecordState() method. By looking at the call
stack, I see that the newPosition argument passed to ChangeRecordState()
method is correct and it raises the CurrentChanged event whereas the
PositionChanged event does not get fired and the UI is not updated.

When I move the record position by incrementing or decrementing the Positon
property, the UI controls does get updated normally but not in the case of
AddNew() i.e.

_cm.Position = _cm.Count-1;

also does not work

Your inputs on this would be highly appreciated

Thanks

Regards,
Girish Jain

===================================
This list is hosted by DevelopMentorĀ®  http://www.develop.com

View archives and manage your subscription(s) at http://discuss.develop.com

Reply via email to