Took me quite a few hours browsing through sources to find out a solution.
It turned out it's not possible to filter by multiple fields because the code looks up one field in the collection. A bypass solution would be to create a new field and double the number of CultureInfo items in the Languages collection which looks ugly.
So instead I filter the collection and open the dropdown. Despite there are hundreds of items it works fast because of the virtualized panel. Filtering occurs by Name (e.g. en-US) and DisplayName (English (United States)).
One more addressed issue is that the text becomes selected as soon as the dropdown is opened.
Resolves #264
Took me quite a few hours browsing through sources to find out a solution. It turned out it's not possible to filter by multiple fields because the code looks up one field in the collection. A bypass solution would be to create a new field and double the number of CultureInfo items in the Languages collection which looks ugly.
So instead I filter the collection and open the dropdown. Despite there are hundreds of items it works fast because of the virtualized panel. Filtering occurs by Name (e.g. en-US) and DisplayName (English (United States)).
One more addressed issue is that the text becomes selected as soon as the dropdown is opened.