winforms - Get week of month C# -

this question has answer here:

• calculate week of month in .net 12 answers

i want find date on week number c# desktop application.

i've been looking on google, none fit needs.

how week in month example below?

example:

i want january 6, 2014 = first week of january

january 30, 2014 = fourth week of january

but 1 february 2014 = week 4 in january

and 3 february 2014 first week in february

here method:

static int getweeknumberofmonth(datetime date) {     date = date.date;     datetime firstmonthday = new datetime(date.year, date.month, 1);     datetime firstmonthmonday = firstmonthday.adddays((dayofweek.monday + 7 - firstmonthday.dayofweek) % 7);     if (firstmonthmonday > date)     {         firstmonthday = firstmonthday.addmonths(-1);         firstmonthmonday = firstmonthday.adddays((dayofweek.monday + 7 - firstmonthday.dayofweek) % 7);     }     return (date - firstmonthmonday).days / 7 + 1; } 

test:

console.writeline(getweeknumberofmonth(new datetime(2014, 1, 6)));  // 1 console.writeline(getweeknumberofmonth(new datetime(2014, 1, 30))); // 4 console.writeline(getweeknumberofmonth(new datetime(2014, 2, 1)));  // 4 console.writeline(getweeknumberofmonth(new datetime(2014, 2, 3)));  // 1