Binding error using SfTextBoxExt

Hi,

The attached project (a simple textbox with a list of string as auto completing source) has many bindings failure when entering data (cf. below).

      Error: Converter failed to convert value of type 'Windows.UI.Xaml.Controls.ListBoxItem' to type 'ImageSource';

      BindingExpression: Path='' DataItem='Windows.UI.Xaml.Controls.ListBoxItem'; target element is 'Windows.UI.Xaml.Controls.Image' (Name='null');

      target property is 'Source' (type 'ImageSource'). 

 As we display a message for all binding errors, the control is not usable as is.

Thank you in advance for your help.

In addition, we cannot work around the problem because the sender parameter in the BindingFailed event is null.

Best regards.