How to find the day of week

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I want to find the day number of a week. In the following code the variable 'daynumber' is
showing just zero.In web form variable 'daynumber' works. So I copied
the entire thing in window forms but the 'daynumber' variable shows just zero. How to rectify the code?

C#

DateTime v_todaydt = DateTime.Today;
v_DespatchDate = v_todaydt.AddDays(7).Date.ToString("yyyy/MM/dd");
DateTime dateTime = DateTime.ParseExact(v_DespatchDate, "yyyy/MM/dd", System.Globalization.CultureInfo.InvariantCulture);
var daynumber = ((int)dateTime.DayOfWeek);

Posted 18-May-14 1:10am

S.Rajendran from Coimbatore

Updated 18-May-14 1:31am

DamithSL

v2

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[no name] 18-May-14 7:20am

There is nothing to rectify. daynumber is 0 because the day you are looking at this code is Sunday, day 0 of the DayOfWeek enum.

S.Rajendran from Coimbatore 18-May-14 7:31am

Oh fine. Thanks.

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DamithSL · Answer 1 · 2014-05-18T01:29:00

Quote:
The value of the constants in the DayOfWeek enumeration ranges from DayOfWeek.Sunday to DayOfWeek.Saturday. If cast to an integer, its value ranges from zero (which indicates DayOfWeek.Sunday) to six (which indicates DayOfWeek.Saturday).

Read the Remarks section of the DateTime.DayOfWeek Property[^]

if you need Day number of the week

C#

var daynumber = ((int)dateTime.DayOfWeek) +1;

Side Note: Your code can reduce to

C#

int dayNum = (int)DateTime.Today.AddDays(7).DayOfWeek + 1;

Abhinav S · Answer 2 · 2014-05-18T01:30:00

Solution 2

DayOfWeek is an enumeration.
Go through the example at http://msdn.microsoft.com/en-us/library/system.datetime.dayofweek%28v=vs.110%29.aspx[^].

Posted 18-May-14 1:30am

Abhinav S