稳扎稳打Silverlight(3) - 2.0控件之Border, Button, Calendar, Canvas, CheckBox, ComboBox

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 Silverlight20.Control 
{ 
         public partial  class Calendar : UserControl 
        { 
                 public Calendar() 
                { 
                        InitializeComponent(); 
                } 
 
                 private  void calendar_SelectedDatesChanged( object sender, SelectionChangedEventArgs e) 
                { 
                         // Calendar.SelectedDate - 选中的日期 
                         // Calendar.SelectedDates - 选中的多个日期集合 
 
                         this.txtMsg.Text = ""; 
                         foreach (DateTime dt  in calendar.SelectedDates) 
                        { 
                                 this.txtMsg.Text += dt.ToString( "yyyy-MM-dd"); 
                                 this.txtMsg.Text +=  " "; 
                        } 
                } 
 
                 private  void CheckBox_Checked( object sender, RoutedEventArgs e) 
                { 
                         if ( this.calendar.SelectedDate !=  null &&  this.calendar.SelectedDate < DateTime.Now.Date) 
                                 this.calendar.SelectedDate = DateTime.Now; 
 
                         // Calendar.BlackoutDates - 不允许选择的日期集合 
                         // Calendar.BlackoutDates.AddDatesInPast() - 禁止选择今天之前的日期 
                         this.calendar.BlackoutDates.AddDatesInPast(); 
                } 
 
                 private  void CheckBox_Unchecked( object sender, RoutedEventArgs e) 
                { 
                         // Calendar.BlackoutDates.Clear() - 清除 不允许选择的日期集合 的设置 
                         this.calendar.BlackoutDates.Clear(); 
                } 
 
                 private  void selectionMode_Changed( object sender, RoutedEventArgs e) 
                { 
                         // CalendarSelectionMode.None - 禁止选择日期 
                         // CalendarSelectionMode.SingleRange - 可以选择多个日期，连续日期（Shift键配合） 
                         // CalendarSelectionMode.MultipleRange - 可以选择多个日期，任意日期（Ctrl键配合） 
                         // CalendarSelectionMode.SingleDate - 只能选择一个日期 
                         switch (((System.Windows.Controls.RadioButton)sender).Name) 
                        { 
                                 case  "None": 
                                         this.calendar.SelectionMode = CalendarSelectionMode.None; 
                                         break; 
                                 case  "SingleRange": 
                                         this.calendar.SelectionMode = CalendarSelectionMode.SingleRange; 
                                         break; 
                                 case  "MultipleRange": 
                                         this.calendar.SelectionMode = CalendarSelectionMode.MultipleRange; 
                                         break; 
                                 default: 
                                         this.calendar.SelectionMode = CalendarSelectionMode.SingleDate; 
                                         break; 
                        } 
                } 
        } 
}