Hi Telerik Team,
I suspect this is not using the ComboBox as intended and the AutoComplete behaves in a similar manner as it appears both controls expect all the data to be loaded and the filtering is down within the control on the superset of data.
However, I have a massive dataset and I want to use this as a traditional AutoComplete/Suggest control, so I am loading in all the (pre-filtered) data as the user types, the issue is as soon as I update the ItemsSource and there is 1 item that is a substring match (am using Contains) the control selects that item and clears the input text from the user.
Is there a way I can accept all user input without it being cleared until the user picks an item from the dropdown? Moreover, is it possible to not change the SelectedItem binding until a dropdown item is chosen "by the user" (not by the control)?