Question

At first the data retrieved and made item source of AutoCompleteBox1 is nothing.

Then at refocus, the data(list) to be made itemsource has some records,

problem

The item source of the autocompletebox 1 is not refreshed!.

Help please.

The new items added to the list must become the itemsource of the autocomplete

Code

 Sub AssignToAutoCompleteOfDetails()
    ''load auto complete box
    For Each abcd In DomainService_EditCompany.GECODs
        If abcd.codCode = AutoCompleteBox2.Text.Trim Then
            list_company.Add(abcd.codDesc.ToString())
        End If
    Next
    AutoCompleteBox1.ItemsSource = list_company
 End Sub

Answer 1

This is because even though list_company is getting updated with the data, the UI doesn’t know there has been a change. To tackle this Silverlight has an interface know as INotifyPropertyChanged which could be implemented and bound to a UI control.

But in your case all you have to do is to replace the List<string> with ObservableCollection<string> and add using System.Collections.ObjectModel;