How to get the week number of a month based on the selected date?

Question

0.00/5 (No votes)

See more:

Hi,

I want to get the week number of the month in the label based on the date selected in the asp.net calender control. I dont want week numbers by yearly wise, I want monthly wise. for example this month contails six weeks so , I want weeks from 1 to 6 to be displayed based on the selected date.

Posted 3-Oct-11 22:20pm

Susan Marampudi

Updated 4-Oct-11 4:05am

v3

Add a Solution

5 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mario Majčica · Answer 1 · 2011-10-03T22:26:00

Try this one (an extension method)

C#

/// <summary>
/// Gets the week number for a provided date time value based on the current culture settings.
/// </summary>
/// <param name="dateTime">The date time.</param>
/// <returns>The week number</returns>
public static int GetWeekOfYear(this DateTime dateTime) {
    var culture = CultureInfo.CurrentUICulture;
    var calendar = culture.Calendar;
    var dateTimeFormat = culture.DateTimeFormat;

    return calendar.GetWeekOfYear(dateTime, dateTimeFormat.CalendarWeekRule, dateTimeFormat.FirstDayOfWeek);
}

As your question is not clear, if any, check this link out.

http://msdn.microsoft.com/en-us/library/system.globalization.calendar.getweekofyear.aspx[^]

Cheers

Anuja Pawar Indore · Answer 2 · 2011-10-03T22:34:00

Solution 2

Refer this thread

http://stackoverflow.com/questions/2136487/calculate-week-of-month-in-net/2136549#2136549[^]

Posted 3-Oct-11 22:34pm

Anuja Pawar Indore

sachin10d · Answer 3 · 2011-10-03T22:42:00

Try this

C#

public static int WeekDay(DateTime dt) 
        { 
            // Set Year 
            int yyyy = dt.Year; 
            // Set Month 
            int mm = dt.Month; 
 
            // Set Day 
            int dd = dt.Day; 
            // Declare other required variables 
            int DayOfYearNumber; 
            int Jan1WeekDay; 
            int WeekDay; 
 
            int i, j, k, l; 
            int[] Mnth = new int[12] { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; 
 
            // Set DayofYear Number for yyyy mm dd 
            DayOfYearNumber = dd + Mnth[mm - 1]; 
            // Increase of Dayof Year Number by 1, if year is leapyear and month is february 
            if ((IsLeapYear(yyyy) == true) && (mm == 2)) 
                DayOfYearNumber += 1; 
            // Find the Jan1WeekDay for year 
            i = (yyyy - 1) % 100; 
            j = (yyyy - 1) - i; 
            k = i + i / 4; 
            Jan1WeekDay = 1 + (((((j / 100) % 4) * 5) + k) % 7); 
            // Calcuate the WeekDay for the given date 
            l = DayOfYearNumber + (Jan1WeekDay - 1); 
            WeekDay = 1 + ((l - 1) % 7); 
            return WeekDay; 
        } 
 
        public static bool IsLeapYear(int yyyy) 
        { 
 
            if ((yyyy % 4 == 0 && yyyy % 100 != 0) || (yyyy % 400 == 0)) 
                return true; 
            else 
                return false; 
        }

http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/bf504bba-85cb-492d-a8f7-4ccabdf882cb[^]

member60 · Answer 4 · 2011-10-03T22:54:00

Solution 4

have a look at :
http://www.planet-source-code.com/vb/scripts/ShowCodeAsText.asp?txtCodeId=2777&lngWId=10

Posted 3-Oct-11 22:54pm

member60

Updated 3-Oct-11 23:08pm

v2

devildx2050 · Answer 5 · 2011-10-04T06:24:00

Solution 5

try this...

Dim weekNum as Integer = DatePart(DateInterval.WeekOfYear, Date.Now)

Posted 4-Oct-11 6:24am

devildx2050