日期控件Calendar的简单使用

今天下午仿照着天轰穿大哥的视频学习日期控件Calendar，刚刚照着代码写了一遍，还是有很多都没有看懂啊。也不知道是一下子理解不了，还是我把代码打错了，达不到视频上讲的效果。还是把代码帖出来了。

public partial class _Default : System.Web.UI.Page






{


string[][] arr;//声明数组来储存节日


protected void Page_Init(object sender, EventArgs e)






{


//填充日期列表


for (int y = 1980; y < 2080; y++)






{


Year.Items.Add(y.ToString());


}


for (int y = 1; y <= 12; y++)






{


Mouth.Items.Add(y.ToString());


}


for (int y = 1; y <=31; y++)






{


Day.Items.Add(y.ToString());


}






arr = new string[13][];


for (int i = 0; i < 13; i++)






{


arr[i] = new string[32];


}


//下面是储存在数组中的节日


arr[1][1] = "元旦节";


arr[2][14] = "情人节";


arr[3][8] = "妇女节";


arr[4][1] = "愚人节";


arr[5][1] = "劳动节";


arr[5][22] = "赤色火焰的生日";


arr[6][1] = "儿童节";


arr[7][1] = "建党节";


arr[8][1] = "建军节";


arr[9][10] = "教师节";


arr[10][1] = "国庆节";


arr[12][24] = "平安夜";


arr[12][25] = "圣诞节";






}


protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)






{


switch (DropDownList1.SelectedValue)






{


case "None"://注意是冒号


Calendar1.SelectionMode = CalendarSelectionMode.None;


break;


case "Day":


Calendar1.SelectionMode = CalendarSelectionMode.Day;


break;


case "DayWeek":


Calendar1.SelectionMode = CalendarSelectionMode.DayWeek;


break;


case "DayWeekMonth":


Calendar1.SelectionMode = CalendarSelectionMode.DayWeekMonth;


break;




}


}


protected void Calendar1_SelectionChanged(object sender, EventArgs e)






{


//当选择日期时激发




Label1.Text = Calendar1.SelectedDate.ToShortDateString();


Label2.Text = Calendar1.SelectedDate.Day.ToString()+"日";


Label3.Text = Calendar1.SelectedDate.Month.ToString()+"月";


Label4.Text = Calendar1.SelectedDate.Year.ToString() + "年";


}


protected void Button1_Click(object sender, EventArgs e)






{


string y = Year.SelectedValue.ToString();


string m = Mouth.SelectedValue.ToString();


string d = Day.SelectedValue.ToString();


Calendar1.VisibleDate = Convert.ToDateTime(y+"-"+m+"-"+d);//设置指定日期，要将日期转化为日期格式


}


protected static DataTable ds(string day)






{ //为日期将要绑定的数据库做个查询


SqlConnection con = new SqlConnection("server=.;uid=sa;pwd=sa;database=pubs;");


SqlDataAdapter sda = new SqlDataAdapter();


sda.SelectCommand = new SqlCommand("select title_id,pubdate,title from titles where pubdate="+day,con);


DataSet ds = new DataSet();


sda.Fill(ds,"titles");


return ds.Tables["titles"];


}






protected void Calendar1_DayRender(object sender, DayRenderEventArgs e)






{


CalendarDay d = e.Day;//设置当前日期


TableCell c = e.Cell;//设置当前表格


if(d.IsOtherMonth)






{//如果是其他月份的话就清除本来的节日


c.Controls.Clear();




}


else






{


try






{


string txt=arr[d.Date.Month][d.Date.Day];//得到完整的当前【月】【日】


if(txt !=string.Empty)//看是否存在东西






{


//仿照博客园的日历来做


string day=e.Day.Date.ToShortDateString();//获取当前日期并转化为短日期格式


foreach(DataRow dr in ds(day).Rows)//循环数据视图中的每一行






{


c.Controls.Clear();//清除所有表格中的元素


c.Controls.Add(new LiteralControl("<a href='http://mgod.cnblogs.com/haha.aspx?dt="+day+"'><b>"+e.Day.Date.Day+"</b></a>"));


}




c.Controls.Add(new LiteralControl("<br>"+txt));//如果有的话，就在日期数字后面换行显示出来了


}


}


catch (Exception ex)






{


Response.Write(ex.ToString());


}




}






}


}
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