C#

JSON Date Parsing

See more JSON Examples

Demonstrates how to parse date/time strings from JSON.

Note: This example uses the DtOf and DateOf methods introduced in Chilkat v9.5.0.73

C#

bool success = false;

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;

//  First, let's create JSON containing some date/time strings.
json.UpdateString("test.timestamp","2018-01-30T20:35:00Z");
json.UpdateString("test.rfc822","Tue, 24 Apr 2018 08:47:03 -0500");
json.UpdateString("test.dateStrings[0]","2018-01-30T20:35:00Z");
json.UpdateString("test.dateStrings[1]","Tue, 24 Apr 2018 08:47:03 -0500");
json.UpdateNumber("test.StartLoggingTime","1446834998.695");
json.UpdateNumber("test.Expiration","1442877512.0");
json.UpdateInt("test.StartTime",1518867432);

Debug.WriteLine(json.Emit());

//  We've built the following JSON:

//  {
//    "test": {
//      "timestamp": "2018-01-30T20:35:00Z",
//      "rfc822": "Tue, 24 Apr 2018 08:47:03 -0500",
//      "dateStrings": [
//        "2018-01-30T20:35:00Z",
//        "Tue, 24 Apr 2018 08:47:03 -0500"
//      ],
//      "StartLoggingTime": 1446834998.695,
//      "Expiration": 1442877512.0,
//      "StartTime": 1518867432
//    }
//  }

//  Use the DateOf and DtOf methods to load Chilkat date/time objects with the date/time values.
//  The CkDateTime object is primarily for loading a date/time from numerous formats, and then getting
//  the date/time in various formats.  Thus, it's primarly for date/time format conversion.
//  The DtObj object holds a date/time where the individual components (day, month, year, hour, minutes, etc.) are 
//  immediately accessible as integers.
Chilkat.CkDateTime dateTime = new Chilkat.CkDateTime();
Chilkat.DtObj dt = new Chilkat.DtObj();
bool getAsLocal = false;

//  Load the date/time at test.timestamp into the dateTime object.
success = json.DateOf("test.timestamp",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));
Debug.WriteLine(Convert.ToString(dateTime.GetAsUnixTime(false)));
Debug.WriteLine(dateTime.GetAsRfc822(getAsLocal));

success = json.DateOf("test.rfc822",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));

json.I = 0;
success = json.DateOf("test.dateStrings[i]",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));

json.I = 1;
success = json.DateOf("test.dateStrings[i]",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));

success = json.DateOf("test.StartLoggingTime",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));

success = json.DateOf("test.Expiration",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));

success = json.DateOf("test.StartTime",dateTime);
Debug.WriteLine(dateTime.GetAsTimestamp(getAsLocal));

//  Output so far:

//  	2018-01-30T20:35:00Z
//  	1517344500
//  	Tue, 30 Jan 2018 20:35:00 GMT
//  	2018-04-24T13:47:03Z
//  	2018-01-30T20:35:00Z
//  	2018-04-24T13:47:03Z
//  	2015-11-07T00:36:38Z
//  	2015-09-22T04:18:32Z
//  	2018-02-17T17:37:12Z

//  Now load the date/time strings into the dt object:
success = json.DtOf("test.timestamp",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

success = json.DtOf("test.rfc822",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

json.I = 0;
success = json.DtOf("test.dateStrings[i]",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

json.I = 1;
success = json.DtOf("test.dateStrings[i]",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

success = json.DtOf("test.StartLoggingTime",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

success = json.DtOf("test.Expiration",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

success = json.DtOf("test.StartTime",getAsLocal,dt);
Debug.WriteLine("month=" + Convert.ToString(dt.Month) + ", day=" + Convert.ToString(dt.Day) + ", year=" + Convert.ToString(dt.Year) + ", hour=" + Convert.ToString(dt.Hour)
     + ", minute=" + Convert.ToString(dt.Minute));

//  Output:

//  month=1, day=30, year=2018, hour=20, minute=35
//  month=4, day=24, year=2018, hour=13, minute=47
//  month=1, day=30, year=2018, hour=20, minute=35
//  month=4, day=24, year=2018, hour=13, minute=47
//  month=11, day=6, year=2015, hour=18, minute=36
//  month=9, day=21, year=2015, hour=23, minute=18
//  month=2, day=17, year=2018, hour=11, minute=37