C#处理生日提醒功能，最全面代码。

- 日理万妓 2021-11-09 02:12 410阅读 0赞

以下是我经过 一个多星期，摸索出来，考虑的也比较全面的 生日提醒代码，因为生日提醒涉及到 有的是公历，有的农历，还有2月29日 出生，日期处理

总的思路

一.把农历转成公历

二.再分别对待公历生日，农历生日处理。

protected void TongYi()  
    \{

DataSet MyDataSet = DBUtility.DbHelperSQL.GetDataSet("select \* from ERPUser where  DATEDIFF ( DAY , GETDATE() , TongYi )<0    and  ZaiGang='在岗'  ");

for (int j = 0; j < MyDataSet.Tables\[0\].Rows.Count; j++)  
        \{

BLL.ERPUser MyModel = new BLL.ERPUser();

MyModel.ID = int.Parse(MyDataSet.Tables\[0\].Rows\[j\]\["ID"\].ToString());

if (MyDataSet.Tables\[0\].Rows\[j\]\["PanDuan"\].ToString() == "公历")  
            \{  
                \#region 公历生日

string gonglitongyi = "2014-5-12";  
                DateTime dt2 = Convert.ToDateTime(MyDataSet.Tables\[0\].Rows\[j\]\["BirthDay"\].ToString());  
                int pox = toResult(MyDataSet.Tables\[0\].Rows\[j\]\["BirthDay"\].ToString());

if (pox <= 0)  
                \{  
                    \#region  
                    if ((dt2.Month == 2) && (dt2.Day == 29))  
                    \{

gonglitongyi = DateTime.Now.Year.ToString() + "-" + dt2.Month.ToString() + "-" + "28";

\}  
                    else  
                    \{

gonglitongyi = DateTime.Now.Year.ToString() + "-" + dt2.Month.ToString() + "-" + dt2.Day.ToString();

\#endregion

\}  
                else  
                \{

\#region  
                    if ((dt2.Month == 2) && (dt2.Day == 29))  
                    \{

gonglitongyi = (Convert.ToInt32(DateTime.Now.Year.ToString()) + 1).ToString() + "-" + dt2.Month.ToString() + "-" + "28";

\}  
                    else  
                    \{

gonglitongyi = (Convert.ToInt32(DateTime.Now.Year.ToString()) + 1).ToString() + "-" + dt2.Month.ToString() + "-" + dt2.Day.ToString();

\}  
                    \#endregion

MyModel.TongYi = gonglitongyi;  
                MyModel.NianDai = DateTime.Now.Year.ToString();

\#endregion

\}  
            else if (MyDataSet.Tables\[0\].Rows\[j\]\["PanDuan"\].ToString() == "农历")  
            \{  
                \#region

string riqi = MyDataSet.Tables\[0\].Rows\[j\]\["NongLi"\].ToString();  
                string moy = "9-18";  
                string\[\] arr = riqi.Split('-');  
                if (arr.Length.ToString() == "3")  
                \{

moy = arr\[1\] + "-" + arr\[2\];

\}  
                arr = null;

ChineseLunisolarCalendar ChineseCalendar = new ChineseLunisolarCalendar();  
                int niandai = Convert.ToInt32(DateTime.Now.Year.ToString());  
                string biaozhun = ChineseCalendar.GetYear(DateTime.Now).ToString();//取农历年  
                string vtx2 = biaozhun + "-" + moy.ToString();  
                DateTime dt2 = Convert.ToDateTime(vtx2);  
                string sss = calendarChineseLunisolarToSolar(dt2).ToString();  
                int result = toResult2(sss);  
                if (result < 0)  
                \{

biaozhun = (ChineseCalendar.GetYear(DateTime.Now) + 1).ToString();

\}  
                else  
                \{

biaozhun = ChineseCalendar.GetYear(DateTime.Now).ToString(); //取农历年

\}  
                string vtx3 = biaozhun + "-" + moy.ToString();  
                DateTime dt3 = Convert.ToDateTime(vtx3);  
                string tongyidate = calendarChineseLunisolarToSolar(dt3).Year.ToString() + "-" + calendarChineseLunisolarToSolar(dt3).Month.ToString() + "-" + calendarChineseLunisolarToSolar(dt3).Day.ToString();  
                MyModel.TongYi = tongyidate;  
                MyModel.NianDai = DateTime.Now.Year.ToString();

\#endregion

MyModel.Update2();

\}  
    \}

public int toResult(string d2)  
    \{  
        string joinDate1 = "";

DateTime dt2 = Convert.ToDateTime(d2);

if ((dt2.Month == 2) && (dt2.Day == 29))  
        \{

joinDate1 = (DateTime.Now.Year.ToString() + "-" + dt2.Month.ToString() + "-" + "28");

\}  
        else  
        \{

joinDate1 = (DateTime.Now.Year.ToString() + "-" + dt2.Month.ToString() + "-" + dt2.Day.ToString());

DateTime joinDate = Convert.ToDateTime(joinDate1);

TimeSpan ts = DateTime.Now - joinDate;

return ts.Days;  
    \}

public int toResult2(string d2)  
    \{  
        DateTime joinDate = Convert.ToDateTime(d2);

TimeSpan ts = joinDate - DateTime.Now;

return ts.Days;  
    \}

/// <summary>  
    /// 将  农历(阴历)   转换为   公历(阳历,西历)  
    ///    如果传入的参数中的年份是润年，需要另外进行加上润月的天数，简单测试，但没有做过多的测试，不知是否完全正确  
    ///  
    ///    DateTime dt = Convert.ToDateTime("2010-05-21 00:00:00");  
    ///    MessageBox.Show(calendarChineseLunisolarToSolar(dt).ToString());  
    ///     
    /// </summary>  
    ///  
    public static DateTime calendarChineseLunisolarToSolar(DateTime ChineseLunisolarDateTime)  
    \{  
        System.Globalization.ChineseLunisolarCalendar cal = new System.Globalization.ChineseLunisolarCalendar();

if (ChineseLunisolarDateTime.Year < 1902 || ChineseLunisolarDateTime.Year > 2100)  
            throw new Exception("只支持1902～2100期间的农历年");

DateTime dt = cal.ToDateTime(ChineseLunisolarDateTime.Year, ChineseLunisolarDateTime.Month, ChineseLunisolarDateTime.Day, 0, 0, 0, 0);

//检测是否含有润月  
        int leapMonth = cal.GetLeapMonth(ChineseLunisolarDateTime.Year);

int leapMonthInDays = 0;

if ((leapMonth > 0) & (leapMonth <= ChineseLunisolarDateTime.Month))  
        // if (leapMonth > 0 & ChineseLunisolarDateTime.Month > leapMonth)  
        \{  
            //有润月，则读到这个润月里面的天数  
            leapMonthInDays = cal.GetDaysInMonth(ChineseLunisolarDateTime.Year, ChineseLunisolarDateTime.Month);  
        \}

dt = dt.AddDays(leapMonthInDays);

return dt;  
    \}

转载于:https://www.cnblogs.com/cgfree/p/4318671.html