自动完成框的设置器不会触发

Question

我需要对类中的属性进行更新，因为selecteditems会更改。 但是，当我为设置器设置断点时，它实际上从未触发过。 请问我该如何解决？

<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);
        }
    }
}

我可以为其他组件（例如下面）设置一个断点，并且可以正常触发。

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

Answer 1

尝试使用ObservableCollection而不是BindableCollection

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