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VB.NET Week Day Dates

Hello,

I am trying to get an array of dates for a given month.

For example, the user enters the month they want e.g. September 2012.

I then need to find the first and last date of that month. (Done that)

Then I need to get the dates for each week in that month.

So it will be formatted like the below.

3 September 2012 - 7 September 2012
10 September 2012 - 14 September 2012
17 September 2012 - 21 September 2012
21 September 2012 - 28 September 2012

I need the first date it gets to start on the first week day for that month so ignoring Saturday and Sunday.
I need it to finish on the very last date of that month but during the week.

Another example would be for August 2012

1 August 2012 - 3 August 2012
6 August 2012 - 10 August 2012
13 August 2012 - 17 August 2012
20 August 2012 - 24 August 2012
27 August 2012 - 31 August 2012

I have currently got a loop which is like the below.

   Do While blStop = False
            ' TextBox1.Text &= dtestart.ToLongDateString & vbNewLine
            If dtestart.Month <> dtestart.AddDays(x).Month Then
                '    MsgBox("Month has changed")
                arrDates(TheCounter) = dtestart & " - " & dtestart.AddDays(x - 1)
                TheCounter += 1
                ReDim Preserve arrDates(TheCounter)
                blStop = True
            Else
                If dtestart.AddDays(x).DayOfWeek = DayOfWeek.Friday Then
                    arrDates(TheCounter) = dtestart & " - " & dtestart.AddDays(x)
                    TheCounter += 1
                    ReDim Preserve arrDates(TheCounter)
                    dtestart = dtestart.AddDays(x + 3)
                    x = 0
                ElseIf dtestart.AddDays(x).DayOfWeek = DayOfWeek.Monday Then
                    ' dtestart = dtestart.AddDays(x)
                    x = 0
                ElseIf dtestart.AddDays(x).DayOfWeek = DayOfWeek.Saturday Or dtestart.AddDays(x).DayOfWeek = DayOfWeek.Sunday Then
                    x += 1
                End If
            End If
            x += 1
        Loop

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Which does report correctly to an extent however it is also bringing in October dates where as I only want September.

The results I get from the above is

03 September 2012 - 07 September 2012
10 September 2012 - 14 September 2012
17 September 2012 - 21 September 2012
24 September 2012 - 28 September 2012
01 October 2012 - 05 October 2012
08 October 2012 - 12 October 2012
15 October 2012 - 19 October 2012
22 October 2012 - 26 October 2012
29 October 2012 - 31 October 2012

Any help in trying to solve this would be great please.

Thanks,

ASKER CERTIFIED SOLUTION

Mike Tomlinson

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TommySzalapski

Your problem is this line
dtestart = dtestart.AddDays(x + 3)
If that changes destart to the next month it will continue.

Probably the easiest way to fix it would just be to check if dtestart and dtestart.AddDays(x + 3) were the same month first and stop the loop in that case.

BoltonWanderer

ASKER

Worked perfectky. Thank you.