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How to: Convert Between utcdatetime and System.DateTime [AX 2012]

Updated: October 18, 2011

Applies To: Microsoft Dynamics AX 2012 R3, Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012

In Microsoft Dynamics AX, the X++ Global class provides methods for converting between the X++ utcdatetime and the .NET Framework System.DateTime type. The X++ language does not provide the same automatic marshaling between these two date/time types that it does for pairs of other primitive types (such as for int and System.Int32).

NoteNote

For more information about automatic or implicit marshaling, see How to: Marshal Between X++ and CLR Primitive Types.

The following code sample demonstrates the static methods available on the Global class for converting between utcdatetime and System.DateTime in either direction.

In the code sample, the two important X++ methods are:

  • Global::utcDateTime2SystemDateTime

  • Global::CLRSystemDateTime2UtcDateTime

static void JobDateTimeGlobalMarshal(Args _args)
{
    System.DateTime netDttm;
    utcdatetime xppDttm;
    str xppString;
    ;
    xppDttm = 2007-06-05T23:22:21; // ISO standard format.
    
    // Convert X++ to .NET.
    netDttm = Global::utcDateTime2SystemDateTime(xppDttm);
    
    // Convert .NET to X++.
    xppDttm = Global::CLRSystemDateTime2UtcDateTime(netDttm);
    
    xppString = DateTimeUtil::toStr(xppDttm);
    info("xppDttm: " + xppString);
}

The methods that you can use to pass string representations of date/time values between X++ and .NET are as follows:

Direction

X++

.NET Framework

Date/time to string

DateTimeUtil ::toStr

System.DateTime.GetDateTimeFormats (Input a System.Char of s.)

String to date/time

DateTimeUtil ::parse

System.DateTime::Parse

Neither System.Convert::ToString nor System.DateTime.ToString output a format that can be input by DateTimeUtil::Parse.

Cc553823.collapse_all(en-us,AX.60).gifISO String Format for Date/Time

The output format of DateTimeUtil::toStr and System.DateTime.GetDateTimeFormats is yyyy-mm-ddThh:mm:ss in 24 hour format (no trailing AM or PM), with leading zeros. For example, July 20 of 2007 at 1:45PM would be output as 2007-07-20T13:45:00. This string format is an International Standards Organization (ISO) standard.

This ISO string format is input into DateTimeUtil::parse and System.DateTime::Parse. to convert the string to a date/time type.

Cc553823.collapse_all(en-us,AX.60).gifSample of Converting Between Date/Time and String

The following X++ code sample shows how compatible strings can be passed between .NET and X++ and converted into date/time variables.

static void JobDtimeTimeStringsNetXpp(Args _args) // X++
{
    System.DateTime netDttm;
    utcdatetime xppDttm, xppIsoDttm;
    str xppStr;
    ;
    // Use the ISO format to initialize X++ and .NET.
    xppIsoDttm = 2007-05-28T23:59:04; // ISO literal.
    xppDttm = DateTimeUtil::parse("2007-05-28T23:59:04");
    if (xppDttm != xppIsoDttm)
    {
        info("Error 1");
    }
    // Pass date/time strings between X++ and .NET.
    xppStr = DateTimeUtil::toStr(xppDttm);
    netDttm = System.DateTime::Parse(xppStr);
    xppStr = netDttm.ToString("s");
    info(xppStr);
/********* Actual Infolog output
Message (03:56:01 pm)
2007-05-28T23:59:04
**********/
}

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