(1、在Calender中,所有可选择的符号会显示下划线,这是因为它们在浏览器都会呈现为链接。
如果让用户可以选择某天、月、周,必须设置SelectionMode属性(Day、 DayWeek、DayWeekMonth)

(2 控件事件 当用户选择了某一天或者月,可以用OnSelectionChanged来触发
通过  Calendar1.SelectedDate.ToShortDateString();来获取所选择的时间点
     通过  Calendar1.SelectedDate.Count.ToString();来获取所选择的天数
2、实例
现在通过一个实例来加深对日历控件的理解:
当点击TGIF时,会在日历上显示所选月份的所有星期五
当点击Apply时,会在日历上显示开始到结束的日期

 Calender.aspx.cs
复制代码 代码如下:
using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 using System.Web.UI;
 using System.Web.UI.WebControls;
 public partial class myTest_Calender : System.Web.UI.Page
 {
     protected void Page_Load(object sender, EventArgs e)
     {
         if (!IsPostBack) {
             my_Calendar.VisibleDate = my_Calendar.TodaysDate;
             //将选择的日期中的月份映射到下拉框中
             Month_List.SelectedIndex = my_Calendar.VisibleDate.Month - 1;
         }
         //显示到标签中
         lblTodaysDate.Text = "Today is  :" + my_Calendar.TodaysDate.ToShortDateString();
     }
     //选择一个日期的时候触发函数
     protected void Calendar_Select(object sender, EventArgs e)
     {
         lblCountUpdate();
         lblSelectedUpdate();
         txtClear();
     }
     //下拉框触发函数
     protected void Month_SelectedChange(object sender, EventArgs e)
     {
         my_Calendar.SelectedDates.Clear();
         lblSelectedUpdate();
         lblCountUpdate();
         //重新设置时间
         my_Calendar.VisibleDate = new DateTime(my_Calendar.VisibleDate.Year,
             Int32.Parse(Month_List.SelectedItem.Value), 1);
         txtClear();
     }
     //重构函数01-修改日期的次数
     private void lblCountUpdate() {
         lblCount.Text = "the Count of Selected:" + my_Calendar.SelectedDates.Count.ToString();       
     }
     //重构函数02-清楚数据
     private void txtClear() {
         txtEnd.Text = "";
         txtStart.Text = "";
     }
     //重构函数03-修改日期
     private void lblSelectedUpdate() {
         if (my_Calendar.SelectedDate != DateTime.MinValue)
             lblSelctedDate.Text = "the  selected day is :" +
                 my_Calendar.SelectedDate.ToShortDateString();
     }
     //按钮1:显示所选月份的所有星期五
     protected void btnTgif_Click(object sender, EventArgs e)
     {
         int currnetMonth = my_Calendar.VisibleDate.Month;
         int curretnYear = my_Calendar.VisibleDate.Year;
         //先清除原先日历位置
         my_Calendar.SelectedDates.Clear();
         //如果日期是星期五则将其添加到日历中
         for (int i = 1; i <= System.DateTime.DaysInMonth(
             curretnYear, currnetMonth); i++) {
                 DateTime datetime = new DateTime(curretnYear, currnetMonth, i);
                 if (datetime.DayOfWeek == DayOfWeek.Friday)
                     my_Calendar.SelectedDates.Add(datetime);
             }
         lblSelectedUpdate();
         lblCountUpdate();
     }
     //按钮2:
     protected void btnRange_Click(object sender, EventArgs e)
     {
         int currnetMonth = my_Calendar.VisibleDate.Month;
         int curretnYear = my_Calendar.VisibleDate.Year;
         DateTime StartDate = new DateTime(curretnYear, currnetMonth,Int32.Parse(txtStart.Text));
         DateTime EndtartDate = new DateTime(curretnYear, currnetMonth, Int32.Parse(txtEnd.Text));
         my_Calendar.SelectedDates.Clear();
         my_Calendar.SelectedDates.SelectRange(StartDate,EndtartDate);
         lblCountUpdate();
         lblSelectedUpdate();
     }
 }
Calender.aspx
复制代码 代码如下:
