Question

我想要TimePicker的选定日期。当我从日历中选择特定日期时，该日期应该分配给Timepicker。

的Xaml：

<DataTemplate x:Key="EditableDataTemplate">
  <StackPanel Orientation="Horizontal" Width="596">
   <xctk:TimePicker Name="StartPicker" Value="{Binding StartTime, Mode=TwoWay}" Format="Custom" FormatString="hh:mm tt" Background="Yellow" Padding="0" Margin="0" BorderThickness="0" Width="100" EndTime="11:59:0"/>
   <xctk:TimePicker Name="EndPicker" Value="{Binding EndTime, Mode=TwoWay}" Format="Custom" FormatString="hh:mm tt" Background="Yellow" Padding="0" Margin="0" BorderThickness="0" Width="60" EndTime="11:59:0"/>
  </StackPanel>
</DataTemplate>

以下属性更新TimePicker的时间，但设置今天的日期。我想要在运行时选择的选定日期。

private DateTime _started_at;
private DateTime _ended_at;

public DateTime StartTime
    {
        get
        {
            return _started_at;
        }
        set
        {
            _started_at = value;
        }
    }

    public DateTime EndTime
    {
        get
        {
            return _ended_at;
        }
        set
        {
            _ended_at = value;
        }
    }

想法？

Answer 1

您绑定到不存在的属性。将绑定从StartValue和EndValue更改为StartTime和EndTime。

TimePicker：

public DateTime StartTime { get; set; }
public DateTime EndTime { get; set; }

XAML：

<DataTemplate x:Key="EditableDataTemplate">
  <StackPanel Orientation="Horizontal" Width="596">
   <xctk:TimePicker Name="StartPicker" Value="{Binding StartTime, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type Window}}}" Format="Custom" FormatString="hh:mm tt" Background="Yellow" Padding="0" Margin="0" BorderThickness="0" Width="100" EndTime="11:59:0"/>
   <xctk:TimePicker Name="EndPicker" Value="{Binding EndTime, Mode=TwoWay, RelativeSource={RelativeSource AncestorType={x:Type Window}}}" Format="Custom" FormatString="hh:mm tt" Background="Yellow" Padding="0" Margin="0" BorderThickness="0" Width="60" EndTime="11:59:0"/>
  </StackPanel>
</DataTemplate>

编辑做了一些google-jerking并意识到你没有任何财产变更通知。尝试添加INotifyPropertyChanged接口，并提升OnPropertyChanged事件以查看是否清除它。 example with onPropertyChanged

将选定日期设置为TimePicker wpf（DataTemplate中的TimePickers）

1 个答案: