An exception occurred when ComboBoxAdv enabled AutoCompleteMode="Suggest"

[Wpfdev1 Kunyi]

I use ComboBoxAdv in the Treeview control template and set AutoCompleteMode="Suggest" to filter. When there are multiple rows of data in the list, entering values in a certain row of ComboBoxAdv to filter will cause the current options of other rows of ComboBoxAdv to be cleared

Attachment: Img__facd16af_69a2d247.zip

[BagavathiPerumal Apranandham]

Hi Wpfdev1 Kunyi,

Each combo box should have unique item sources. If you want to map to the same ItemsSource, you can create a converter that gives a new CollectionViewSource for each ItemsSource binding. Please refer to the below code snippets for your reference.

Code snippets:

<Window.Resources>

<local:CustomViewConverter x:Key="customViewConverter"/>

</Window.Resources>

ItemsSource="{Binding States, Converter={StaticResource customViewConverter}}"

public class CustomViewConverter : IValueConverter

{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)

{
return new CollectionViewSource { Source = value }.View;

}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

{
throw new NotImplementedException();

}

}

We have attached a sample for your reference. Please let us know if you need any further assistance.

Regards,

Bagavathi Perumal A

Attachment: ComBoBoxAdvAutoComplete_3360af97.zip