WPF Filter a ListBox

Question

I have a ListBox with binding to a list of strings. I want to filter the list when I enter text in a TextBox. How can I do it?

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Answer 1

CollectionViewSource class can help here. As far as I can tell it has many capabilities to filter, sort and group collections.

ICollectionView view = CollectionViewSource.GetDefaultView(ElementList);
view.Filter = (o) => {return o;}//here is the lambda with your conditions to filter

When you don't need any filter just set view.Filter to null. Also check out this article on filtering