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

If you set Dictionary as itemsource to listbox use the below code to sort,

    private void tb_filter_textChanged(object sender, TextChangedEventArgs e)
    {
        Dictionary dictObject = new Dictionary();
        ICollectionView view = CollectionViewSource.GetDefaultView(dictObject);
        view.Filter = CustomerFilter;
        listboxname.ItemsSource = view;
    }

    private bool CustomerFilter(object item)
    {
        KeyValuePair Items = (KeyValuePair) item;
        return Items.Value.ToString().Contains("a");
    }

The above code returns the items contaning "a".