C# 为DataTemplate内的时间选择器设置日期和时间

在我的wpf应用程序中，我有两个位于DataTemplate内的timePicker控件

Xaml：

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由于这些计时器位于DataTemplate内，因此在我的代码隐藏中无法访问。在这种情况下，有人能提出一些设置日期和时间的方法吗？

我想我找到了解决方案，实际上这里发生的就是这个。您已将ListBox.ItemsSource属性设置为某个列表或集合，因此ListBoxItem Datacontext被设置为该列表，因此其EditableDataTemplate（包含时间选择器搜索）其绑定属性StartValue和endValue位于列表或集合中，但实际上这些属性位于列表之外或页面中。因此，您必须如下设置TimePIcker的Relativesource属性

 <DataTemplate x:Key="sample" >
        <xctk:TimePicker Name="StartPicker" Value="{Binding DateTime, 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"/>
    </DataTemplate>

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如果希望所有项目的startTime和EndTime都不同，则创建一个包含startTime和EndTime属性的单独类。然后列出这些对象并将其绑定到您的列表框。希望您能收到此信息。对不起，我的英语不好。

请使用属性数据绑定。检查谷歌。您的组合框是否正常。是的。ComboBox正在运行。更新您的问题并发布完整的xaml和代码隐藏代码。我认为这是一个非常小的问题。检查解决方案。告诉我它是否运行。我做了同样的事情。但时间选择器值未更新。是否已实现InotifyPropertyChangedInes。我已实现inotifypropertychanged。只需在集合上应用断点并获取部分属性，然后检查它是否运行正常。

public partial class DayView : MetroWindow, INotifyPropertyChanged
{
    private DateTime currentDateForWindow;

    public List<Harvest_Project> projectList{get;set;}

    public List<Harvest_Client> clientList {get; set;}

    public Harvest_Project selectedProjectid {get; set;}

    public Harvest_Client selectedClientid {get; set;}

    public string ElementName { get; set; }

    private DateTime _dateTime1;
    public DateTime StartValue
    {
        get
        {
            return _dateTime1;
        }
        set
        {
            _dateTime1 = value;
            OnPropertyChanged("StartValue");
        }
    }

    private DateTime _dateTime2;
    public DateTime EndValue
    {
        get
        {
            return _dateTime2;
        }
        set
        {
            _dateTime2 = value;
            OnPropertyChanged("EndValue");
        }
    }

    public DayView(DateTime s)
    {
            InitializeComponent();
             this.DataContext = this;

            Globals._globalController.setDayViewWindow(this);

            currentDateForWindow = s;

            dayDateLabel.Content = s.DayOfWeek + ", " + s.Day;
            monthLabel.Content = s.ToString("MMMM");

            if(Globals._globalController.win32Manager.isTimerRunning)
                TimerButton.Content = "Stop";
            else
                TimerButton.Content = "Start";

            listBox1.Items.Clear();

            listBox1.MouseDoubleClick += new MouseButtonEventHandler(listBox1_MouseDoubleClick);
            clientList = Globals._globalController.harvestManager._CLIENTLIST;
            projectList = Globals._globalController.harvestManager._PROJECTLIST;
            Globals._globalController.fetchAndPopulateForDate(currentDateForWindow);

            Globals.ni2 = new NotifyIcon();
            Globals.ni2.Icon = TimeSheet.Properties.Resources.DayViewIcon;
            Globals.ni2.Visible = true;
            Globals.ni2.Click +=
            delegate(object sender, EventArgs args)
            {
                this.Show();
                this.WindowState = WindowState.Normal;

            };

     }

    protected override void OnStateChanged(EventArgs e)
    {
        if (WindowState == System.Windows.WindowState.Minimized)
        {
            this.Hide();
            Globals.ni2.BalloonTipTitle = "DayView";
            Globals.ni2.BalloonTipText = "This is Day window";
            Globals.ni2.Visible = true;
            Globals.ni2.ShowBalloonTip(500);
            base.OnStateChanged(e);
        }
    }

    public void addHarvestEntrytoView(Harvest_TimeSheetEntry entry)
    {

          listBox1.Items.Add(entry);

    }

    public void addHarvestEntrytoView(List<Harvest_TimeSheetEntry> entry)
    {
        foreach (Harvest_TimeSheetEntry x in entry)
            listBox1.Items.Add(x);
    }

    private void BackButton_Click(object sender, RoutedEventArgs e)
    {
            Globals.ni2.Visible=false;
            this.Hide();
            Globals._globalController.getMonthViewWindow.Show();
            Globals.ni1.Visible = true;
    }

    private void TimerButton_Click(object sender, RoutedEventArgs e)
    {
        if (!Globals._globalController.win32Manager.isTimerRunning)
        {
            Globals._globalController.win32Manager.startTimer();
            this.TimerButton.Content = "Stop";
        }
        else
        {
            Globals._globalController.win32Manager.stopTimer();
            this.TimerButton.Content = "Start";
        }
    }


    private void SyncEntry_Click(object sender, RoutedEventArgs e)
    {
        //Submit All unsynced Entries

        foreach(Harvest_TimeSheetEntry item in listBox1.Items)
       {
           if (!item.isSynced)
           {
               if (item.ProjectNameBinding == "Select Project" && item.ClientNameBinding == "Select Client")
                   System.Windows.MessageBox.Show("Please select you Project and Client");
               else
               //Check if something is selected in selectedProjectItem For that item
               Globals._globalController.harvestManager.postHarvestEntry(item);
               System.Windows.MessageBox.Show("Entry posted");
           }
       }

    }



    private void listBox1_MouseDoubleClick(object sender, MouseButtonEventArgs e)
    {
        //Submit clicked Entry
        if (sender is ListBoxItem)
        {
            ListBoxItem item = (ListBoxItem)sender;
            Harvest_TimeSheetEntry entryToPost = (Harvest_TimeSheetEntry)item.DataContext;

            if (!entryToPost.isSynced)
            {
                //Check if something is selected in selectedClientItem and selectedProjectItem For that items
                if (entryToPost.ClientNameBinding == "Select Client" || entryToPost.ProjectNameBinding == "Select Project")
                    System.Windows.MessageBox.Show("Please select you Project and Client");
                else
                {
                    Globals._globalController.harvestManager.postHarvestEntry(entryToPost);
                    System.Windows.MessageBox.Show("Entry posted");
                    DataTemplate tmpl = (DataTemplate)this.FindResource("DefaultDataTemplate");
                    listBox1.ItemTemplate = tmpl;
                }
            }
            else
            {

                //Already synced.. Make a noise or something
                System.Windows.MessageBox.Show("Already Synced;TODO Play a Sound Instead");
            }
        }


     }

    private void EditButton_Click(object sender, RoutedEventArgs e)
    {
        if (EditButton.Content == "Edit")
        {
            listBox1.ItemTemplate = (DataTemplate)this.FindResource("EditableDataTemplate");
            EditButton.Content = "Done Editing";
        }
        else
        {
            foreach (Harvest_TimeSheetEntry item in listBox1.Items)
            {
                Globals._globalController.harvestManager.updateHarvestTimeSheetEntry(item);
                if (!item.isSynced)
                {
                    if (ValidateEntry(item))
                    if (IsValidTime(StartValue.ToString()) && IsValidTime(EndValue.ToString()))
                    Globals._globalController.harvestManager.postHarvestEntry(item);
                    System.Windows.MessageBox.Show("Entry posted");
                }

            }
            EditButton.Content = "Edit";
            listBox1.ItemTemplate = (DataTemplate)this.FindResource("DefaultDataTemplate");
         }
    }

    private bool ValidateEntry(Harvest_TimeSheetEntry ent)
    {
        bool IsValid = true;

        if (ent.ClientNameBinding == null || ent.TaskNameBinding == null || ent.ProjectNameBinding == null) throw new ArgumentNullException();
        {
            IsValid = false;
        }

        return IsValid;
    }

    public bool IsValidTime(string time)
    {
        Regex checktime =
            new Regex(@"^(20|21|22|23|[01]d|d)(([:][0-5]d){1,2})$");

        return checktime.IsMatch(time);
    }

    private void CustomButton_Click(object sender, RoutedEventArgs e)
    {
        Globals.ni2.Visible=false;
        CustomView c = new CustomView(Globals._globalController.getDayViewWindow);
        c.Show();
        this.Hide();
        Globals.ni3.Visible = true;
    }

    public void OnPropertyChanged(String time)
    {
        if (System.String.IsNullOrEmpty(time))
        {
            return;
        }
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(time));
        }
    }

    #region INotifyPropertyChanged Members
    public event PropertyChangedEventHandler PropertyChanged;
    #endregion
}

StartPicker.Value = new DateTime(DateTime.Now.Year,DateTime.Now.Month,DateTime.Now.Day,DateTime.Now.Hour,DateTime.Now.Minute,DateTime.Now.Second);
EndPicker.Value = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second);

 <DataTemplate x:Key="sample" >
        <xctk:TimePicker Name="StartPicker" Value="{Binding DateTime, 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"/>
    </DataTemplate>