String to datetime

har du proevet

DateTime dt = DateTime.Parse(s);

?

Du bliver nødt til at angive en IFormatProvider i parse metoden for at kunne angive typen på datoformatet

Hvor kommer datoen fra?

Prøv at se:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemdatetimeclassparsetopic2.asp

ja virker ikke, tror ikke den kan forstå mit format

datoen kommer fra en log fil fra spiller Everquest2

jeg har læst det link, men forstår ikke så meget af det, er nemlig ret ny til .Net :-)

Parse gaetter selv formatet og er normalt ret god til det.

Man kan ogssa angive format selv hvis man vil.

Men hvilken fejl faar du ?

System.FormatException was unhandled
  Message="String was not recognized as a valid DateTime."
  Source="mscorlib"
  StackTrace:
      at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles)
      at System.DateTime.Parse(String s)
      at EQ2Parser2006.CommandParser.findLastCommandTime() in C:\Documents and Settings\michael\Dokumenter\Visual Studio 2005\Projects\Eq2Parserv1\Eq2Parserv1\Parser.cs:line 64
      at EQ2Parser2006.CommandParser.findCommand() in C:\Documents and Settings\michael\Dokumenter\Visual Studio 2005\Projects\Eq2Parserv1\Eq2Parserv1\Parser.cs:line 85
      at Eq2Parserv1.Form1.openLogfileToolStripMenuItem_Click(Object sender, EventArgs e) in C:\Documents and Settings\michael\Dokumenter\Visual Studio 2005\Projects\Eq2Parserv1\Eq2Parserv1\Form1.cs:line 39
      at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
      at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
      at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
      at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
      at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
      at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
      at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
      at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
      at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
      at System.Windows.Forms.Control.WndProc(Message& m)
      at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
      at System.Windows.Forms.ToolStrip.WndProc(Message& m)
      at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
      at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
      at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
      at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
      at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
      at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
      at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
      at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
      at System.Windows.Forms.Application.Run(Form mainForm)
      at Eq2Parserv1.Program.Main() in C:\Documents and Settings\michael\Dokumenter\Visual Studio 2005\Projects\Eq2Parserv1\Eq2Parserv1\Program.cs:line 17
      at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
      at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
      at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
      at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
      at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
      at System.Threading.ThreadHelper.ThreadStart()

koden er kort :

public void findLastCommandTime()
        {
            string pat = @".*?\[(?<tid>.*?)]";
            Regex r = new Regex(pat, RegexOptions.IgnoreCase);

            Match m = r.Match(this.stringToParse);

            if (m.Success)
            {
                //string[] datotid = m.Groups["tid"].Value.Split;
                string tid = m.Groups["tid"].Value;
                // Sun Apr 24 20:53:56 2005
               

                this.LastCommandTime = DateTime.Parse(tid);

            }
        }

der er sikkert flere maader at faa den parset paa

men her er en:

            string s = "Sun Apr 24 20:53:56 2005";
            DateTime dt = DateTime.ParseExact(s, "ddd MMM d HH:mm:ss yyyy", new CultureInfo("en-US", false), DateTimeStyles.AllowWhiteSpaces);

tak arne det virkede

hmmm arne svar lige igen .. kan ikke lige finde udaf at give point .. fik dem hvist selv

for sent - accepteret svar => lukket

http://expfaq.1go.dk/?id=30#giv_flere_point kan anvendes ogsaa til denne slags
situationer