How to Initialize a Datetime Field

How to initialize a DateTime field?

mySmallVuln.Published = new DateTime(1998,04,30);

Or perhaps like this

var date = DateTime.MinValue;
if (DateTime.TryParse("1998/04/30", out date))
{
//Sucess...
mySmallVuln.Published = date;
}

How to initialize DateTime property to show Date.Now

If you have a constructor for your controller you can set the date property like this:

 public NotesController(ApplicationDbContext db)
{
_db = db;
Date = DateTime.Now;
}

updated my answer now that i have seen your constructor.

What is the correct way to assign a value to a DateTime Variable that is in a C# List?

This is the date initialize format.

// YEAR,MONTH,DAY 
DateTime DateDisbursed = new DateTime(2021, 12, 25);

How to initialize datetime 0000-00-00 00:00:00 in Python?

There is no year 0, because people couldn't figure out how to count properly back then.

The closest you can get:

>>> from datetime import datetime
>>> datetime.min
datetime.datetime(1, 1, 1, 0, 0)

django DateTimeField in form (initial value)

You are calling the function datetime.now().strftime("%Y-%m-%d %H:%M:%S") and assigning the default as that. So, during runtime, the now() will get evaluated and stored as the default. Hence you see the same datetime across all your objects. You need to use the auto_now argument and set it to True.

Model -

class Fault(models.Model):
...
date_time = models.DateTimeField(auto_now=True)
...

how to initialize a string to a date-time field type in SharePoint using c#

I am assuming you have a SpListItem itm which have the column named Sdate. Please see the below code which worked fine for me.

DateTime _Sdate = Convert.ToDateTime(itm["Sdate"].toString());
newDef = jobDef.Items.Add();
newDef["Sdate"] = _Sdate;
newDef["Ndate"] = "07/06/2015";
newDef["Cdate"] = calcDay();
newDef.Update();

How to initialize an empty value to a datetime variable?

I try an string.Empty to test:starttime = string.IsNullOrEmpty(str) ? (DateTime?)null : DateTime.Now;

It is successed. So your code could be:

starttime = (dbNullCheck.isColumnNull(rdr, "start_time")) ? (DateTime?)null : rdr.GetDateTime(4);
endtime = (dbNullCheck.isColumnNull(rdr, "end_time")) ? (DateTime?)null: rdr.GetDateTime(5);

Update 1:
.Net Fiddle example for string.Empty: Link



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