将DateTimePicker.Text绑定到DateTimePicker.SelectedDate

Question

我想将DateTimePicker .Text绑定到DateTimePicker.SelectedDate以始终使用.SelectedDate。

我成功做了反向操作（绑定DateTimePicker.SelectedDate到DateTimePicker.Text），但没有DateTimePicker.Text到D ateTimePicker.SelectedDate。

这是我的XAML：

<DatePicker x:Name="DateTimePicker_Date" SelectedDate = "{Binding this.dDate, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True, TargetNullValue=''}" /> 

任何人都知道是我的错？

感谢很多:)

Answer 1

使用本

<DatePicker Name="MyDatePicker" Text="{Binding Path=ActualDate, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True, TargetNullValue=''}" /> 

其中实际日期将是

private Datetime mActualDate; 

    public DateTime ActualDate 
    { 
     get 
     { 
      return mActualDate; 
     } 
     set 
     { 
      if (value != null) 
      { 

         mActualDate= value; 
         NotifyPropertyChanged("ActualDate"); 
      } 
     } 
    } 


    public event PropertyChangedEventHandler PropertyChanged; 

    // NotifyPropertyChanged will raise the PropertyChanged event, 
    // passing the source property that is being updated. 
    public void NotifyPropertyChanged(string propertyName) 
    { 
     if (PropertyChanged != null) 
     { 
      PropertyChanged(this, 
       new PropertyChangedEventArgs(propertyName)); 
     } 
    }