Question

我正在尝试在正确的位置显示自定义日历上的月份日期。使用绑定和使用可观察集合我有一个包含7列和6行的网格，我需要在每个textBlock上显示日期（数字）。我已经让自己完全迷失了，我不知道还有什么可以尝试的。不知怎的，我需要得到星期几和它的日子。我甚至不确定我是否正确地走这条路。我知道XAML很好（至少应该是）我对使用datetime和observable集合感到困惑。非常感谢任何帮助。

这里我使用Observable集合：

public SchedulePage(MainWindow parentForm)
{
   InitializeComponent();
   _parentForm = parentForm;
   // DateTime date = new DateTime(year, month, day);

   _parentForm.bindings = new BindingCamper();

   int day = DateTime.DaysInMonth(2011, 10);

   for (int i = 0; i < 6; i++)
   {
      for (int j = 0; j < 7; j++)
      {
         _parentForm.bindings.schedule.Add(new Schedule { WeekNo = i, WeekDay = j });
         DataContext = _parentForm.bindings;
      }
    }
}

这是我的附表类：

public class Schedule //: INotifyPropertyChanged
{
    public int WeekNo { get; set; }
    public int WeekDay { get; set; }
    public DateTime Date { get; set; }

    public int datenum
    {
        get { return (int)Date.DayOfWeek; }
    }
}

和XAML：

<ItemsControl ItemsSource="{Binding schedule}" Name="Calender" Margin="0,34,0,0" VerticalAlignment="Stretch">
  <ItemsControl.Template>
    <ControlTemplate TargetType="ItemsControl" >
        <Border BorderBrush="Aqua" BorderThickness="1" CornerRadius="15">
            <ItemsPresenter/>
        </Border>

    </ControlTemplate>



  </ItemsControl.Template>
<!-- ItemsPanelTemplate -->
  <ItemsControl.ItemsPanel>

    <ItemsPanelTemplate>

        <Grid ShowGridLines="True" Name="gridCalender">

            <Grid.RowDefinitions>
                <RowDefinition />
                <RowDefinition />
                <RowDefinition />
                <RowDefinition />
                <RowDefinition />
                <RowDefinition />
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
                <ColumnDefinition />
            </Grid.ColumnDefinitions>

        </Grid>
    </ItemsPanelTemplate>
</ItemsControl.ItemsPanel>

<ItemsControl.ItemTemplate>

    <DataTemplate>

        <TextBlock Text ="{Binding datenum}" Background="#FFBCF4E0" OpacityMask="Black" Grid.Column="{Binding datenum}" />


    </DataTemplate>
</ItemsControl.ItemTemplate>


<!-- ItemContainerStyle -->
 <ItemsControl.ItemContainerStyle>
    <Style >
        <Setter Property="Grid.Column" Value="{Binding WeekDay}" />
        <Setter Property="Grid.Row" Value="{Binding WeekNo}" />

    </Style>
 </ItemsControl.ItemContainerStyle>
</ItemsControl>

我还有一个类创建一个新的ObservableCollection（）;

Answer 1

创建日期的循环可能应该是日期循环，WeekNo和WeekDay是根据日期计算的值

例如，

DateTime today = DateTime.Now;
DateTime startDate = new DateTime(today.Year, today.Month, 1);
DateTime endDate = startDate.AddMonths(1).AddDays(-1);

while (startDate <= endDate)
{
    DayCollection.Add(new Day
    {
        Date = startDate,
        WeekDay = (int)startDate.DayOfWeek,
        WeekNo = startDate.GetWeekOfMonth()
    });

    startDate = startDate.AddDays(1);
}

它使用扩展方法查找月内的周数，可以找到on another SO question

static class DateTimeExtensions
{
    static GregorianCalendar _gc = new GregorianCalendar();
    public static int GetWeekOfMonth(this DateTime time)
    {
        DateTime first = new DateTime(time.Year, time.Month, 1);
        return time.GetWeekOfYear() - first.GetWeekOfYear() + 1;
    }

    static int GetWeekOfYear(this DateTime time)
    {
        return _gc.GetWeekOfYear(time, CalendarWeekRule.FirstDay, DayOfWeek.Sunday);
    }
}

在自定义日历上显示天数wpf

1 个答案: