有关Silverlight Calendar组件（日历组件）的研究——Silverlight学习笔记（1）

组件所在命名空间：

System.Windows.Controls

  

组件常用属性：

SelectedDate：获取或设置当前被选中的日期

DisplayDate：获取或设置日期以显示

DisplayDateStart：获取或设置被显示的第一个日期

DisplayDateEnd：获取或设置被显示的最后一个日期

SelectionMode：获取或设置Calendar组件的选取模式

None：设置日历为不可选

SingleDate：只能选择单一日期

SingleRange：只能连续选取日期

MultipleRange：能连续或者间隔地（通过按住Ctrl键）选取日期

BlackoutDates：获取或设置被标记为不可选的一个日期集合

SelectedDates：获取被选中的一个日期集合

IsTodayHighlighted：是否将今日日期高亮显示。

 

组件常用事件：

DisplayDateChanged：显示日期改变

DisplayModeChanged：显示模式改变

SelectedDatesChanged：被选中日期改变

 

实例：

说明：在属性方面应当重点掌握该组件的BlackoutDates和SelectedDates属性（可用于数据库的交互），在事件方面应当重点掌握SelectedDatesChanged事件。

 效果图：

[原始状态]


[显示日期范围]


[SingleRange]


[MultipleRange和BlackoutDates]


[背景图片和背景视频]

代码段：
MainPage.xaml代码：（由Microsoft Expression Blend 3设计）

 

<UserControl

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

    mc:Ignorable="d" xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls" xmlns:dataInput="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data.Input" x:Class="Calendar.MainPage"

    xmlns:src="clr-namespace:Calendar"

d:DesignWidth="640" d:DesignHeight="480" Width="640" Height="480">

<!--作为cbBackgroundImage的数据源-->

    <UserControl.Resources>

        <src:picsrcProvider x:Key="picsrcProvider"></src:picsrcProvider>

    </UserControl.Resources>

   

    <Grid x:Name="LayoutRoot" Width="640" Height="480" Background="White">

     <controls:Calendar x:Name="cal" Height="164" HorizontalAlignment="Left" Margin="31,24,0,0" VerticalAlignment="Top" Width="177" FontSize="16"/>

        <Canvas>

            <MediaElement x:Name="media" AutoPlay="False" IsMuted="True" IsHitTestVisible="False" Source="backvideo.wmv" Margin="141,0,0,35" Visibility="Collapsed"></MediaElement>

        </Canvas>

     <ComboBox x:Name="cbSelectionMode" HorizontalAlignment="Right" Margin="0,112,100,0" Width="177" Height="28" SelectedIndex="1" VerticalAlignment="Top" d:LayoutOverrides="Height">

         <ComboBoxItem Content="None"/>

         <ComboBoxItem Content="SingleDate"/>

         <ComboBoxItem Content="SingleRange"/>

         <ComboBoxItem Content="MultipleRange"/>

     </ComboBox>

     <dataInput:Label Height="19" Margin="240,112,294,0" VerticalAlignment="Top" Content="日历选取模式：" FontSize="16"/>

     <dataInput:Label Height="24" Margin="241,24,256,0" VerticalAlignment="Top" Content="显示日期范围：" FontSize="16"/>

     <dataInput:Label Height="25" HorizontalAlignment="Left" Margin="240,66,0,0" VerticalAlignment="Top" Width="29" Content="从" FontSize="16"/>

     <dataInput:Label FontSize="16" Height="25" HorizontalAlignment="Right" Margin="0,66,198,0" VerticalAlignment="Top" Width="29" Content="到"/>

     <controls:DatePicker x:Name="dpShowFrom" Height="25" Margin="269,66,240,0" VerticalAlignment="Top" Width="131"/>

     <controls:DatePicker x:Name="dpShowTo" Height="25" HorizontalAlignment="Right" Margin="0,66,59,0" VerticalAlignment="Top" Width="131"/>

     <dataInput:Label HorizontalAlignment="Left" Margin="33,214,0,238" Width="134" Content="当前选中的日期：" FontSize="16"/>

     <TextBox x:Name="tbSelectedDate" Height="33" HorizontalAlignment="Left" Margin="33,0,0,188" VerticalAlignment="Bottom" Width="175" TextWrapping="Wrap" FontSize="16"/>

     <dataInput:Label FontSize="16" Height="24" Margin="241,159,256,0" VerticalAlignment="Top" Content="不可选日期范围："/>

     <dataInput:Label FontSize="16" Height="25" HorizontalAlignment="Left" Margin="240,201,0,0" VerticalAlignment="Top" Width="29" Content="从"/>

     <dataInput:Label FontSize="16" Height="25" HorizontalAlignment="Right" Margin="0,201,198,0" VerticalAlignment="Top" Width="29" Content="到"/>

     <controls:DatePicker x:Name="dpUnselectedFrom" Height="25" Margin="269,201,240,0" VerticalAlignment="Top" Width="131"/>

     <controls:DatePicker x:Name="dpUnselectedTo" Height="25" HorizontalAlignment="Right" Margin="0,201,59,0" VerticalAlignment="Top" Width="131"/>

     <dataInput:Label Margin="240,237,256,214" Content="已选中日期的集合：" FontSize="16"/>

     <TextBlock x:Name="tbSelectedDateCollection" Height="70" Margin="241,0,59,144" VerticalAlignment="Bottom" Text="&lt;None&gt;" TextWrapping="Wrap" Width="340" Foreground="Black"/>

     <dataInput:Label FontSize="16" Margin="241,0,256,112" Content="不可选日期的集合：" Height="24" VerticalAlignment="Bottom"/>

     <TextBlock x:Name="tbUnselectedDataCollection" Height="63" Margin="241,0,59,35" VerticalAlignment="Bottom" Text="&lt;None&gt;" TextWrapping="Wrap" Width="340"/>

     <Button x:Name="btnClear" Height="25" HorizontalAlignment="Right" Margin="0,201,8,0" VerticalAlignment="Top" Width="47" Content="清除" FontSize="14.667"/>

     <Button x:Name="btnClearSelectedDate" Height="25" HorizontalAlignment="Right" Margin="0,66,8,0" VerticalAlignment="Top" Width="47" Content="清除" FontSize="14.667"/>

     <dataInput:Label Height="30" HorizontalAlignment="Left" Margin="33,0,0,154" VerticalAlignment="Bottom" Width="106" Content="背景图片：" FontSize="16"/>

     <ComboBox x:Name="cbBackgroundImage" Height="28" ItemsSource="{Binding picsrc,Source={StaticResource picsrcProvider}}" HorizontalAlignment="Left" Margin="35,0,0,112" VerticalAlignment="Bottom" Width="173"/>

     <CheckBox x:Name="cbBackgroundVideo" Height="26" HorizontalAlignment="Left" Margin="35,0,0,57" VerticalAlignment="Bottom" Width="173" Content="视频背景" FontSize="16"/>

  </Grid>

</UserControl>

 

MainPage.xaml.cs代码：

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Media.Imaging;//目的：为了创建ImageBrush而导入的命名空间。

 

namespace Calendar

{

    public class picsrcProvider//cbBackgroundImage的数据源

    {

        public List<string> picsrc

        {

            get

            {

                return new List<string> { "images/calbackground.PNG", "images/calbackground2.PNG" };

            }

        }

    }

 

    public partial class MainPage : UserControl

    {

        //定义全局变量

        ImageBrush bgimg = new ImageBrush();

        VideoBrush bgvideo = new VideoBrush();

 

        public MainPage()

        {

            InitializeComponent();

//注册控件触发事件的处理函数，个人建议使用该方法，以便于代码与界面设计分离

            this.cal.SelectedDatesChanged += new EventHandler<SelectionChangedEventArgs>(cal_SelectedDatesChanged);

            this.cbSelectionMode.SelectionChanged += new SelectionChangedEventHandler(cbSelectionMode_SelectionChanged);

            this.dpShowFrom.SelectedDateChanged += new EventHandler<SelectionChangedEventArgs>(dpShowFrom_SelectedDateChanged);

            this.dpShowTo.SelectedDateChanged += new EventHandler<SelectionChangedEventArgs>(dpShowTo_SelectedDateChanged);

            this.dpUnselectedTo.SelectedDateChanged += new EventHandler<SelectionChangedEventArgs>(dpUnselectedTo_SelectedDateChanged);

            this.btnClear.Click += new RoutedEventHandler(btnClear_Click);

            this.btnClearSelectedDate.Click += new RoutedEventHandler(btnClearSelectedDate_Click);

            this.cbBackgroundImage.SelectionChanged += new SelectionChangedEventHandler(cbBackgroundImage_SelectionChanged);

            this.Loaded += new RoutedEventHandler(MainPage_Loaded);

            this.cbBackgroundVideo.Checked += new RoutedEventHandler(cbBackgroundVideo_Checked);

            this.media.MediaEnded += new RoutedEventHandler(media_MediaEnded);

        }

 

        void media_MediaEnded(object sender, RoutedEventArgs e)

        {//背景视频的重播

            media.Position = TimeSpan.FromSeconds(0);

            media.Play();

        }

 

        void cbBackgroundVideo_Checked(object sender, RoutedEventArgs e)

        {//背景视频的处理

            bool? state = cbBackgroundVideo.IsChecked;

            if (state == true)

            {

                media.Play();

                bgvideo.SourceName = "media";

                bgvideo.Stretch = Stretch.Fill;

                bgvideo.Opacity = 0.5;

                cal.Background = bgvideo;

            }

        }

 

        void cbBackgroundImage_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {//背景图片的选择

            string imgSource = cbBackgroundImage.SelectedItem.ToString();

            bgimg.ImageSource = new BitmapImage(new Uri(@imgSource, UriKind.Relative));

            bgimg.Opacity = 0.5;

            bgimg.Stretch = Stretch.Fill;

            cal.Background = bgimg;

        }

 

        void MainPage_Loaded(object sender, RoutedEventArgs e)

        {

            media.Play();

        }

 

        void btnClearSelectedDate_Click(object sender, RoutedEventArgs e)

        {

            cal.SelectedDates.Clear();

            tbSelectedDate.Text = String.Empty;

            tbSelectedDateCollection.Text = String.Empty;

        }

 

        void btnClear_Click(object sender, RoutedEventArgs e)

        {

            cal.BlackoutDates.Clear();

            tbUnselectedDataCollection.Text = String.Empty;

        }

 

        void cal_SelectedDatesChanged(object sender, SelectionChangedEventArgs e)

        {//设置日历的可选日期集合并且显示

            try

            {

                tbSelectedDate.Text = ((DateTime)cal.SelectedDate).ToShortDateString();

                tbSelectedDateCollection.Text = String.Empty;

                cal.SelectedDates.ToList().ForEach(x => tbSelectedDateCollection.Text += x.ToShortDateString() + " ");

            }

            catch { }

        }

 

        void dpUnselectedTo_SelectedDateChanged(object sender, SelectionChangedEventArgs e)

        {//设置日历的不可选日期集合并且显示

            try

            {

                if (dpUnselectedFrom.SelectedDate != null)

                {

                    cal.BlackoutDates.Clear();

                    cal.BlackoutDates.Add(new CalendarDateRange((DateTime)dpUnselectedFrom.SelectedDate, (DateTime)dpUnselectedTo.SelectedDate));

                    tbUnselectedDataCollection.Text = String.Empty;

                    cal.BlackoutDates.ToList().ForEach(x => tbUnselectedDataCollection.Text += "从" + x.Start.ToShortDateString() + "到" + x.End.ToShortDateString());

                }

            }

            catch { }

        }

 

        void dpShowTo_SelectedDateChanged(object sender, SelectionChangedEventArgs e)

        {

            cal.DisplayDateEnd = dpShowTo.SelectedDate;

        }

 

        void dpShowFrom_SelectedDateChanged(object sender, SelectionChangedEventArgs e)

        {

            cal.DisplayDateStart = dpShowFrom.SelectedDate;

        }

 

        void cbSelectionMode_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {//处理日历的选择模式

            string mode = ((ComboBoxItem)cbSelectionMode.SelectedItem).Content.ToString();

            switch(mode)

            {

                case "None":

                cal.SelectionMode = CalendarSelectionMode.None;

                break;

                case "SingleDate":

                cal.SelectionMode = CalendarSelectionMode.SingleDate;

                break;

                case "SingleRange":

                cal.SelectionMode = CalendarSelectionMode.SingleRange;

                break;

                case "MultipleRange":

                cal.SelectionMode = CalendarSelectionMode.MultipleRange;

                break;

            }

        }

    }

}

作者：Kinglee
文章出处：Kinglee’s Blog (http://www.cnblogs.com/Kinglee/)
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