c# 日历实现

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Text;

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

{

protected void Page_Load(object sender, EventArgs e)

if (!IsPostBack)

Response.Write(cld(DateTime.Now));

}

private int dw(DayOfWeek dw)

int result = 0;

switch (dw)

case DayOfWeek.Monday:

result = 1;

break;

case DayOfWeek.Tuesday:

result = 2;

case DayOfWeek.Wednesday:

result = 3;

case DayOfWeek.Thursday:

result = 4;

case DayOfWeek.Friday:

result = 5;

case DayOfWeek.Saturday:

result = 6;

default:

result = 0;

return result;

private string cld(DateTime dt)

StringBuilder sb = new StringBuilder();

try

int day = dt.Day;//当天

DateTime cdt = dt.AddDays(1 - dt.Day);//当月第一天

int OneInWeek = dw(cdt.DayOfWeek);//当月第一天星期

int Days = DateTime.DaysInMonth(dt.Year, dt.Month);//当月天数

DateTime ndt = dt.AddDays(1 - dt.Day).AddMonths(1);//下个月

int LastInWeek = dw(ndt.DayOfWeek);//下个月第一天星期

DateTime pdt = dt.AddMonths(-1);//上个月

int PDays = DateTime.DaysInMonth(pdt.Year, pdt.Month);//上个月天数

sb.Append("<table border='1'><tr><td>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td></tr><tr>");

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

sb.Append("<td>");

sb.Append("<font color='gray'>" + (PDays + i - OneInWeek + 1).ToString() + "</font>");

sb.Append("</td>");

for (int i = 1; i <= Days; i++)

sb.Append(i == day ? "<font color='red'>" + i.ToString() + "</font>" : i.ToString());

if ((i + OneInWeek) % 7 == 0)

sb.Append("</tr><tr>");

if (LastInWeek != 0)

for (int i = 1; i <= (7 - LastInWeek); i++)

sb.Append("<font color='gray'>" + i.ToString() + "</font>");

sb.Append("<tr></table>");

catch

{ }

return sb.ToString();

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/archive/2010/03/08/1680953.html，如需转载请自行联系原作者