自動完成框的設置器不會觸發

Question

我需要對類中的屬性進行更新，因為selecteditems會更改。 但是，當我為設置器設置斷點時，它實際上從未觸發過。 請問我該如何解決？

<telerik:RadAutoCompleteBox ....
                            SelectedItems"{Binding Occurence.Appointment.SelectedAttendees, Mode=TwoWay}"
                            .../>

CustomAppointment.cs

public BindableCollection<AttendeeSearchDTO> SelectedAttendees
{
    get
    {
        return selectedAttendees;
    }
    set
    {            
        if (selectedAttendees != value)
        {
            selectedAttendees = value;
            this.OnPropertyChanged(() => this.SelectedAttendees);
        }
    }
}

我可以為其他組件（例如下面）設置一個斷點，並且可以正常觸發。

<TextBox  Text="{Binding Occurrence.Appointment.Body, Mode=TwoWay}" />

Answer 1

嘗試使用ObservableCollection而不是BindableCollection

public ObservableCollection <AttendeeSearchDTO> SelectedAttendees
{
    get
    {
        return selectedAttendees;
    }
    set
    {            
        if (selectedAttendees != value)
        {
            selectedAttendees = value;
            this.OnPropertyChanged(() => this.SelectedAttendees);
        }
    }
}