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  • WPF自定义选择年月控件详解

    本文实例为大家分享了WPF自定义选择年月控件的具体代码，供大家参考，具体内容如下

    封装了一个选择年月的控件，XAML代码：

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    <UserControl x:Class="SunCreate.CombatPlatform.Client.DateMonthPicker"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Height="23" Loaded="UserControl_Loaded">
      <UserControl.Resources>
        <ResourceDictionary>
          <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="/SunCreate.CombatPlatform.Client.Resources;Component/Resource/DateTimePickerResource.xaml" />
          </ResourceDictionary.MergedDictionaries>
          <Style TargetType="ToggleButton" x:Key="stlToggleButton">
            <Setter Property="Foreground" Value="White"></Setter>
            <Setter Property="Template">
              <Setter.Value>
                <ControlTemplate>
                  <Border x:Name="Back" Background="Transparent" BorderThickness="0" BorderBrush="Transparent">
                    <Path Name="PathFill" Fill="#1b94e0" Width="8" Height="6" StrokeThickness="0" Data="M5,0 L10,10 L0,10 z" RenderTransformOrigin="0.5,0.5" Stretch="Fill">
                      <Path.RenderTransform>
                        <TransformGroup>
                          <ScaleTransform/>
                          <SkewTransform/>
                          <RotateTransform Angle="180"/>
                          <TranslateTransform/>
                        </TransformGroup>
                      </Path.RenderTransform>
                    </Path>
                  </Border>
                  <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                      <Setter TargetName="PathFill" Property="Fill" Value="#1b94e0"></Setter>
                      <Setter TargetName="Back" Property="Background" Value="Transparent"></Setter>
                      <Setter TargetName="Back" Property="BorderBrush" Value="Transparent"></Setter>
                    </Trigger>
                  </ControlTemplate.Triggers>
                </ControlTemplate>
              </Setter.Value>
            </Setter>
          </Style>
          <Style TargetType="ComboBox" x:Key="stlComboBox">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
            <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
            <Setter Property="ScrollViewer.CanContentScroll" Value="True"/>
            <Setter Property="HorizontalAlignment" Value="Left"></Setter>
            <Setter Property="Foreground" Value="Black"></Setter>
            <Setter Property="Height" Value="30"></Setter>
            <Setter Property="Margin" Value="0,0,0,0"></Setter>
            <Setter Property="Template">
              <Setter.Value>
                <ControlTemplate TargetType="ComboBox">
                  <Grid>
                    <Grid.Background>
                      <ImageBrush ImageSource="/SunCreate.CombatPlatform.Client.Resources;component/Image/Face/1比n人脸比对/输入框.png"/>
                    </Grid.Background>
                    <Grid.ColumnDefinitions>
                      <ColumnDefinition Width="0.7*"/>
                      <ColumnDefinition Width="0.3*" MaxWidth="30" MinWidth="18"/>
                    </Grid.ColumnDefinitions>
                    <TextBox Grid.Column="0" IsReadOnly="True" Foreground="#1ba4f6" BorderThickness="1" BorderBrush="Transparent" Text="{TemplateBinding Text}" Background="Transparent"></TextBox>
                    <Border Grid.Column="0" BorderThickness="0" Background="Transparent">
                    </Border>
                    <Border Grid.Column="1" BorderThickness="0" CornerRadius="0,1,1,0" Background="Transparent">
                      <ToggleButton Style="{StaticResource stlToggleButton}" IsChecked="{Binding Path=IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" ClickMode="Press"></ToggleButton>
                    </Border>
                    <Popup IsOpen="{TemplateBinding IsDropDownOpen}" Placement="Bottom" x:Name="Popup" Focusable="False" AllowsTransparency="True" PopupAnimation="Slide">
                      <Border CornerRadius="1" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{TemplateBinding ActualWidth}" x:Name="DropDown" SnapsToDevicePixels="True" Background="Transparent">
                        <Border.Effect>
                          <DropShadowEffect Color="#1ba4f6" BlurRadius="2" ShadowDepth="0" Opacity="0.5"/>
                        </Border.Effect>
                        <ScrollViewer Margin="4,6,4,6" Style="{DynamicResource ScrollViewerStyle}" MaxHeight="{TemplateBinding MaxDropDownHeight}" SnapsToDevicePixels="True" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" CanContentScroll="True">
                          <!-- StackPanel 用于显示子级，方法是将 IsItemsHost 设置为 True -->
                          <StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Contained" Background="#1ba4f6"/>
                        </ScrollViewer>
                      </Border>
                    </Popup>
                  </Grid>
                </ControlTemplate>
              </Setter.Value>
            </Setter>
          </Style>
        </ResourceDictionary>
      </UserControl.Resources>
      <Grid>
        <StackPanel Orientation="Horizontal">
          <ComboBox Grid.Column ="2" Grid.Row="0" Name="cbYear" SelectionChanged="cbYear_SelectionChanged" SelectedValuePath="Text" DisplayMemberPath="Text" Height="25" Width="55" Style="{StaticResource stlComboBox}" VerticalAlignment ="Center" >
          </ComboBox>
          <TextBlock Text="年" Margin="5 0 5 0" VerticalAlignment="Center" Foreground="#1ba4f6" />
          <ComboBox Grid.Column ="2" Grid.Row="0" Name="cbMonth" SelectionChanged="cbMonth_SelectionChanged" SelectedValuePath="Text" DisplayMemberPath="Text" Height="25" Width="40" Style="{StaticResource stlComboBox}" VerticalAlignment ="Center" >
          </ComboBox>
          <TextBlock Text="月" Margin="5 0 5 0" VerticalAlignment="Center" Foreground="#1ba4f6" />
        </StackPanel>
      </Grid>
    </UserControl>

    后台代码：

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    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Data;
    using System.Windows.Documents;
    using System.Windows.Input;
    using System.Windows.Media;
    using System.Windows.Media.Imaging;
    using System.Windows.Navigation;
    using System.Windows.Shapes;
    using System.ComponentModel;
     
    namespace SunCreate.CombatPlatform.Client
    {
      /// <summary>
      ///
      /// </summary>
      public partial class DateMonthPicker : UserControl, INotifyPropertyChanged
      {
        private DateTime _selectedMonth;
        public static DependencyProperty selectedTimeProperty;
     
        static DateMonthPicker()
        {
          selectedTimeProperty = DependencyProperty.Register("SelectedMonth", typeof(DateTime), typeof(DateMonthPicker), new PropertyMetadata(DateTime.Now, new PropertyChangedCallback(SelectedMonthChanged)));
        }
     
        public DateMonthPicker()
        {
          InitializeComponent();
     
          int currentYear = DateTime.Now.Year;
          int currentMonth = DateTime.Now.Month;
          List<object> yearList = new List<object>();
          for (int i = currentYear - 20; i <= currentYear; i++)
          {
            yearList.Add(new { Text = i.ToString() });
          }
          cbYear.ItemsSource = yearList;
     
          cbMonth.ItemsSource = new List<object>() {
            new { Text = "1" },
            new { Text = "2" },
            new { Text = "3" },
            new { Text = "4" },
            new { Text = "5" },
            new { Text = "6" },
            new { Text = "7" },
            new { Text = "8" },
            new { Text = "9" },
            new { Text = "10" },
            new { Text = "11" },
            new { Text = "12" }};
     
          this._selectedMonth = DateTime.Now;
        }
     
        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
          cbYear.SelectedValue = _selectedMonth.Year.ToString();
          cbMonth.SelectedValue = _selectedMonth.Month.ToString();
        }
     
        private static void SelectedMonthChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
        {
          (obj as DateMonthPicker).ChangeSelect(e.NewValue);
        }
     
        private void ChangeSelect(object value)
        {
          _selectedMonth = (DateTime)value;
          cbYear.SelectedValue = _selectedMonth.Year.ToString();
          cbMonth.SelectedValue = _selectedMonth.Month.ToString();
        }
     
        public DateTime SelectedMonth
        {
          get { return (DateTime)this.GetValue(DateMonthPicker.selectedTimeProperty); }
          set { this.SetValue(DateMonthPicker.selectedTimeProperty, value); }
        }
     
        public DateTime StartDay
        {
          get
          {
            return this._selectedMonth.AddDays(1 - this._selectedMonth.Day).Date;
          }
        }
     
        public DateTime EndDay
        {
          get
          {
            return this.StartDay.AddMonths(1).AddDays(-1);
          }
        }
     
        #region INotifyPropertyChanged 成员
        public event PropertyChangedEventHandler PropertyChanged;
        private void SendPropertyChanged(String propertyName)
        {
          if (PropertyChanged != null)
            this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
        #endregion
     
        private void cbYear_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
          ComboBox cb = sender as ComboBox;
          if (this._selectedMonth != DateTime.MinValue && cb.SelectedValue != null)
          {
            this._selectedMonth = new DateTime(Convert.ToInt32(cb.SelectedValue), this._selectedMonth.Month, 1);
            SelectedMonth = this._selectedMonth;
          }
        }
     
        private void cbMonth_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
          ComboBox cb = sender as ComboBox;
          if (this._selectedMonth != DateTime.MinValue && cb.SelectedValue != null)
          {
            this._selectedMonth = new DateTime(this._selectedMonth.Year, Convert.ToInt32(cb.SelectedValue), 1);
            SelectedMonth = this._selectedMonth;
          }
        }
      }
    }

    效果图：
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  • 原文地址：https://www.cnblogs.com/sjqq/p/7891256.html
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