Get day from DateTime using C#

问题

Silly question. Given a date in a datetime and I know it's tuesday for instance how do i know its tue=2 and mon=1 etc...

Thanks

回答1:

You are looking for the DayOfWeek property.
Then, as Dan suggests in the comment below, just look at the integer value of the enum to get the day as integer:

int d = (int)System.DateTime.Now.DayOfWeek

回答2:

DayOfWeek is an Enum. To get the integer instead of the string representation you can cast it

int i = (int)d.DayOfWeek

回答3:

if you want to find out the name of the day, you can do this as follows:

DateTime.Now.DayOfWeek

Response.Write(DateTime.Now.DayOfWeek);

回答4:

http://msdn.microsoft.com/en-us/library/system.dayofweek.aspx

回答5:

DateTime.DayOfWeek

回答6:

Yes DateTime has DayOfWeek() method.

回答7:

I use:

int day = (int)System.DateTime.Now.DayOfWeek;
string dayoftheweek;

In the public partial class Form :

System.Windows.Forms.Form class 

(For a c# winforms application)

回答8:

 DateTime dt = Convert.ToDateTime (txtMaxDate.Value); /*Store date in dt */
int day = dt.Day; /*Get date as (01-01-2019 then it will give 01 as day)*/

来源：https://stackoverflow.com/questions/2988406/get-day-from-datetime-using-c-sharp