雜思部落格

C#民國年西元年轉換

西元年轉民國年
System.Globalization.CultureInfo tc = new System.Globalization.CultureInfo("zh-TW"); tc.DateTimeFormat.Calendar = new System.Globalization.TaiwanCalendar();
DateTime dt = DateTime.Now;
Response.Write(dt.ToString(tc));


西元年日期驗證
 DateTime dt = DateTime.Now;
 DateTime.TryParse("2015/7/21", out dt) ;


民國年轉西元年  
System.Globalization.CultureInfo tc = new System.Globalization.CultureInfo("zh-TW"); tc.DateTimeFormat.Calendar = new System.Globalization.TaiwanCalendar(); Response.Write(DateTime.Parse("102/7/21",tc).Date.ToString("d"));



民國年日期驗證
System.Globalization.CultureInfo tc = new System.Globalization.CultureInfo("zh-TW"); tc.DateTimeFormat.Calendar = new System.Globalization.TaiwanCalendar();
DateTime result;
try
 {
     result = DateTime.ParseExact("102/7/21", "d", tc);
     Response.Write("Ok");
 }
   catch (FormatException)
{
   Response.Write("Wrong");
 }