本文来自永恒的记忆的博客，原文地址：http://www.cnblogs.com/salam/archive/2010/07/12/1775451.html
DatePicker、Calendar是SilverLight提供的日期控件。下面是一个例子
1.CalendarSample.xaml
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<UserControl xmlns:sdk="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls" x:Class="Silverlight.Common.View.CalendarSample"
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"
d:DesignHeight="300" d:DesignWidth="400" Loaded="UserControl_Loaded">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="95" />
<ColumnDefinition Width="160" />
<ColumnDefinition Width="60" />
<ColumnDefinition Width="100" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TextBlock Text="您选择的日期是：" Height="27" />
<TextBox Grid.Row="0" Grid.Column="1" x:Name="txtSelectedDate" IsReadOnly="true" />
<TextBlock Grid.Row="1" Grid.Column="0" Text="今天是：" />
<TextBox Grid.Row="1" Grid.Column="1" x:Name="txtDisplayDate" IsReadOnly="true" />
<TextBlock Grid.Row="2" Grid.Column="0" Text="开始日期：" />
<sdk:DatePicker
x:Name="dateStart"
Grid.Row="2"
Grid.Column="1"
SelectedDateFormat="Short"
SelectedDateChanged="dateStart_SelectedDateChanged"
Margin="5" TabNavigation="Local" />
<TextBlock Grid.Row="3" Grid.Column="0" Text="截止日期：" />
<sdk:DatePicker
x:Name="dateEnd"
Grid.Row="3"
Grid.Column="1"
SelectedDateChanged="dateEnd_SelectedDateChanged"
Margin="5" />
<sdk:Calendar
x:Name="Calendar1"
Grid.Row="6"
Grid.Column="0"
Grid.ColumnSpan="2"
SelectedDatesChanged="Calendar1_SelectedDatesChanged"
Margin="5" />
<TextBlock Text="日历样式：" Grid.Column="2"></TextBlock>
<ComboBox x:Name="cmbDisplayMode" SelectionChanged="cmbDisplayMode_SelectionChanged" Grid.Column="3">
<ComboBoxItem Content="Year"></ComboBoxItem>
<ComboBoxItem Content="Decade"></ComboBoxItem>
<ComboBoxItem Content="Month"></ComboBoxItem>
</ComboBox>
<TextBlock Text="显示格式：" Grid.Column="2" Grid.Row="1"></TextBlock>
<ComboBox x:Name="cmbDisplayFormat" SelectionChanged="cmbDisplayFormat_SelectionChanged" Grid.Row="1" Grid.Column="3">
<ComboBoxItem Content="短日期型"></ComboBoxItem>
<ComboBoxItem Content="长日期型(包含星期)"></ComboBoxItem>
<ComboBoxItem Content="时间型"></ComboBoxItem>
<ComboBoxItem Content="长时间型"></ComboBoxItem>
</ComboBox>
</Grid>
</UserControl>
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2.CalendarSample.cs
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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.Shapes;
namespace Silverlight.Common.View
{
public partial class CalendarSample : UserControl
{
public CalendarSample()
{
InitializeComponent();
}
private void dateStart_SelectedDateChanged(object sender, SelectionChangedEventArgs e)
{
if (this.Calendar1 == null)
{
return;
}
try
{
this.Calendar1.DisplayDateStart = e.AddedItems[0] as DateTime?;
}
catch
{
this.Calendar1.DisplayDateStart = null;
dateStart.Text = "";
}
}
private void dateEnd_SelectedDateChanged(object sender, SelectionChangedEventArgs e)
{
if (this.Calendar1 == null)
{
return;
}
try
{
this.Calendar1.DisplayDateEnd = e.AddedItems[0] as DateTime?;
}
catch
{
this.Calendar1.DisplayDateEnd = null;
dateStart.Text = "";
}
}
private void Calendar1_SelectedDatesChanged(object sender, SelectionChangedEventArgs e)
{
if (Calendar1.SelectedDate != null)
{
DateTime date = (DateTime)this.Calendar1.SelectedDate;
this.txtSelectedDate.Text = date.ToShortDateString();
}
}
private void UserControl_Loaded(object sender, RoutedEventArgs e)
{
if (Calendar1 != null)
{
this.txtDisplayDate.Text = this.Calendar1.DisplayDate.ToShortDateString();
}
}
private void cmbDisplayFormat_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
switch (this.cmbDisplayFormat.SelectedIndex)
{
case 0:
this.txtDisplayDate.Text = DateTime.Now.ToShortDateString();
break;
case 1:
this.txtDisplayDate.Text = DateTime.Now.ToLongDateString();
break;
case 2:
this.txtDisplayDate.Text = DateTime.Now.ToShortTimeString();
break;
case 3:
this.txtDisplayDate.Text = DateTime.Now.ToLongTimeString();
break;
default:
this.txtDisplayDate.Text = DateTime.Now.ToShortDateString();
break;
}
}
private void cmbDisplayMode_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
switch (this.cmbDisplayMode.SelectedIndex)
{
case 0:
this.Calendar1.DisplayMode = CalendarMode.Year;
break;
case 1:
this.Calendar1.DisplayMode = CalendarMode.Decade;
break;
default:
this.Calendar1.DisplayMode = CalendarMode.Month;
break;
}
}
}
}
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注：DisplayMode是日期显示的样式，它有三个值『Year，Decade，Month』
DisplayDate是显示今天的日期