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：

转载于:https://www.cnblogs.com/sjqq/p/7891256.html