how can i code a program to calculate the day of a specific date? in c#

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C#

C#4.0

i wannna build a program where i type the date, and it returns me the day of that specific date.
how can i do that?

Posted 11-Feb-13 7:24am

appleduardo

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Andreas Gieriet 11-Feb-13 18:06pm

You repeat yourself many times below. Read *carefiully*: DateTime is not DateTimePicker!
DateTime is a convenience class to hold dates and time (but not durartions - for that see the TimeSpan class).
Check out the DateTime class and see the constructors and the provided functions to give the day of the week, etc.
Cheers
Andi

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Matt T Heffron · Answer 1 · 2013-02-11T07:27:00

Solution 1

Look at the DateTime.DayOfWeek property.

Posted 11-Feb-13 7:27am

Matt T Heffron

Comments

appleduardo 11-Feb-13 14:55pm

but i cant use datetimepicker methods, how can i code it step by step by taking the given date as refference?

lets say i introduce a date through the datetime picker (feb 11 2013, for instance), and i want to know what day was on nov-23-2002 (which i have to type in 3 different textboxes) by taking the first date as a reference to calculate the second one.

Matt T Heffron 11-Feb-13 17:54pm

None of the solutions that referred to the DateTime data type mentioned using the DateTimePicker. They are different types. You CAN use DateTime without using DateTimePicker. Create the DateTime value: new DateTime(int year, int month, int day)

Mehdi Gholam · Answer 2 · 2013-02-11T07:30:00

Solution 2

Really :

C#

var day = DateTime.Parse("2013/2/11").DayOfWeek; // gives you monday

Posted 11-Feb-13 7:30am

Mehdi Gholam

Comments

appleduardo 11-Feb-13 14:55pm

but i cant use datetimepicker methods, how can i code it step by step by taking the given date as refference?

lets say i introduce a date through the datetime picker (feb 11 2013, for instance), and i want to know what day was on nov-23-2002 (which i have to type in 3 different textboxes) by taking the first date as a reference to calculate the second one.

Thomas Daniels · Answer 3 · 2013-02-11T07:33:00

Solution 3

Hi,

Use the DateTime.Parse[^], the DateTime.ParseExact[^], the DateTime.TryParse[^] or the DateTime.TryParseExact[^] method to parse the given date.
Then, you can use the DateTime.Day or the DateTime.DayOfWeek property to get the day of that specific date.

Posted 11-Feb-13 7:33am

Thomas Daniels

v3

Comments

appleduardo 11-Feb-13 14:54pm

but i cant use datetimepicker methods, how can i code it step by step by taking the given date as refference?

lets say i introduce a date through the datetime picker (feb 11 2013, for instance), and i want to know what day was on nov-23-2002 (which i have to type in 3 different textboxes) by taking the first date as a reference to calculate the second one.

Thomas Daniels 12-Feb-13 2:01am

You can use DateTime without using a DateTimePicker. With Parse, ParseExact, TryParse and TryParseExact, you can parse a string to a DateTime.

Reza Alipour Fard · Answer 4 · 2013-02-11T09:43:00

Solution 6

Hi
You can use from bellow code for this action:

int m = 11, y = 2002, d = 23;
DateTime time = new DateTime(y, m, d);

Console.WriteLine(time);
Console.WriteLine(time.DayOfWeek);

I hope it's helpful for you.

Posted 11-Feb-13 9:43am

Reza Alipour Fard

Maciej Los · Answer 5 · 2013-02-11T07:33:00

Have a look here:
http://msdn.microsoft.com/en-us/library/system.datetime_methods.aspx[^]
http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx[^]
http://msdn.microsoft.com/en-us/library/system.datetime.dayofweek%28v=vs.95%29.aspx[^]

[EDIT]

1) Use ValueChanged for event for DateTimePicker:

VB

Private Sub DateTimePicker1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DateTimePicker1.ValueChanged
        Dim dt As Date

        dt = Me.DateTimePicker1.Value
        Me.Label1.Text = dt.ToString & " is " & Format(dt, "dddd")

    End Sub

or

2) set Format and CustomFormat property for DateTimePicker control

DateTimePicker1.Format = Custom<br />
DateTimePicker1.CustomFormat = "dddd"<br />

DateTimePicker will show you only the name of day.

[/EDIT]

how can i code a program to calculate the day of a specific date? in c#

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