I'm having a problem with a radComboBox bound to an observable collection that contains about 25,000 object entries ... in fact performance starts to get very bad around 3000+ entries (IsEditable = True and Binding Mode= TwoWay). The performance problem is noticeable when I click on the drop down arrow to display entries in the dropdown list ... nothing happens, no list and it's unresponsive ... 30-45 seconds (a huge delay) before the list will appear showing my items. Once the items finally display, scrolling the list is VERY VERY slow. Even when I close the dropdown list it's slow.
As a test I set IsEditable=False ... this made no difference in the performance.
So as another test, I replaced the radComboBox with Microsoft ComboBox and performance was just as bad.
So I guess my question is -- is there anyway to improve the performance of radComboBox or MS ComboBox?
Thanks, Rob.
As a test I set IsEditable=False ... this made no difference in the performance.
So as another test, I replaced the radComboBox with Microsoft ComboBox and performance was just as bad.
So I guess my question is -- is there anyway to improve the performance of radComboBox or MS ComboBox?
Thanks, Rob.