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I want to calculate Quarter month and half year from given date.
I did this for quarter month.but I think its wrong.pls help me.

What I have tried:

private void dtDate_ValueChanged(object sender, EventArgs e)
DateTime date=dtDate.Value;

dtQuarter.Value = (dtDate.Value.AddMonths(3));

Updated 29-Mar-22 22:12pm
Ralf Meier 4-Aug-16 3:34am    
Which should be the result for quarter-month ?
January to March = Quarter 1
April to June = Quarter 2
July to September = Quarter 3
October to December = Quarter 4

... and Half Year ?
January to June = 1st
July to December = 2nd
Member 12385326 4-Aug-16 4:01am    
it should be in date only.i mean if I select start date=2013-07-01 then end date=2013-09-30 like this.

1 solution

For quarter, try:
public DateTime GetQuarterEnd(DateTime dt)
    int month = dt.Month;
    month = ((month + 2) / 3) * 3;
    return new DateTime(dt.Year, month, 1).AddMonths(1).AddDays(-1);
You add one month then subtract one day to get the last day of the quarter.
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Member 12385326 4-Aug-16 4:20am    
@OriginalGriff please suggest how to set this value for datetimepicker.
I have 2 datetimpicker. o the valueChanged Eent of fisrt second displays the quarter date
OriginalGriff 4-Aug-16 4:31am    

myOutputDateTimePicker.Value = GetQuarterEnd(myInputDateTimePicker.Value);
Member 12385326 4-Aug-16 4:34am    
Thanks a lot. it works
Member 12385326 4-Aug-16 4:35am    
please provide solution for half year also
OriginalGriff 4-Aug-16 4:43am    
Oh come on!
That one is either a small change to the existing code or a trivial "if" test!

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