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我想問你,當我更改源代碼時,如何反映View上的更改。這是我的代碼。 MODEL:MVVM NotifyPropertyChanged
public class ExecutionMode
{
private List<DayItem> _dayItems = new List<DayItem>();
public enum TypeMode
{
None,
Once,
Daily,
Weekly
}
public TypeMode Mode { get; set; }
public DateTime? ExecutionTime { get; set; }
public DateTime? ExecutionDate { get; set; }
public List<DayItem> DayItems { get { return _dayItems; } set { _dayItems = value; } }
}
public class ProfileRecord
{
private ExecutionMode _mode = new ExecutionMode();
public ExecutionMode ExecutionMode { get { return _mode; } set { _mode = value; } }
}
視圖模型
public class NewProfileViewModel : INotifyPropertyChanged
{private ProfileRecord _record = new ProfileRecord();
public ProfileRecord Record { get{return _record; } set{_record=value; OnPropertyChanged("Record")}}
XAML:
<toolkit:TimePicker Header="Time of execution:" Margin="12,0,70,0" Value="{Binding ProfileRecord.ExecutionMode.ExecutionTime, Mode=TwoWay}" Visibility="{Binding ElementName=lpickerExecutionModes, Path=SelectedItem, Converter={StaticResource VisibilityConvert}, ConverterParameter=Once|Daily|Weekly}" />
當我在代碼Record.ExecutionTime設置某處=時間不上查看反映。所以我問。我是否也應該在模型中實現NotifyPropertyChanged? 感謝
所以我應該在類ProfileRecord中實現INotifyPropertyChanged,並將其用於公共ExecutionMode ExecutionMode {get {return _mode; } set {_mode = value; }}?對? – JuP 2013-03-13 08:58:33
無論它真的屬於哪個類,你都必須在每個可以從'View'綁定的屬性上實現'INotifyPropertyChanged'。 – MarcinJuraszek 2013-03-13 09:00:45
@JurajP:是的,但您剛剛粘貼的ExMode {get; set}的實際實現應該實際上包含在其setter中的raise-INPC通知:) – quetzalcoatl 2013-03-13 09:01:52