months between two dates

[karunajo]

hi,

I want to calculate tne months between two dates.Actually i am using Asp.net2.0.Is it possible to calculate using Sql or Asp,net..I want to list the months betweeen two dates.Help me...

[kenobewan]

What format are your dates in?

[karunajo]

Date is in the format of (MM/DD/YYYY).i want to list the months..

[kenobewan]

One way would be to calculate the difference in numbers and then have the month names in an arraylist. HTH.

[karunajo]

hi,

I want to display the months between dates

for ex.If i give a 2 dates such as 04/05/2006 and 04/05/2007

the result would be April,may,june..........March

plz help me..very very urgent..

[karunajo]

plz tel me the syntax and how to do it..

[kenobewan]

Multiple posting is against site rules. Please read the faqs. Thanks.

MODERATOR

[kenobewan]

Suggest you have a go and report back.

[karunajo]

sorry.. I wont repeat it..

[nikpreek]

Hi,

There is no direct way (at least to my knowledge). Write a custome function to get the array. I think you might have months for 2 years (wht wud u do then?)
I'm assuming that u need it for any number of years.
Algorithm: (In steps)
1. Write a function to return string array (or list for binding).
2. Create private string array internally from 0 to 11 index (Jan to Dec).
3. Accept two dates as parameters.
4. Now, the logic needs to take care the way u want the difference.
4.1 Just take month from smaller date and loop (twice) to reach to thye month in bigger date. OR
4.2 Take difference between the dates as timespan, then take TotalMonths from it and loop using mod ("%") to fill whole list.

5. Return the array (or list)

If I get some more time today, I'll write some code for you.

Cheers,
Nik

[weedweaver]

private int CalculateMonthDifference(DateTime startDate, DateTime endDate)
{
int diff = 0;

while(startDate <= endDate)
{
endDate = endDate.AddMonths(-1);
diff++;
}
if (diff == 0)
{
return diff;
}
else
{
return diff -1;
}
}


This will loop through and give the number of months difference by subtracting 1 month from the end date until it less than the start date. Ok its not elegent but it works and the number of loops is not massive (e.g. 10 years diff would be 1200 loops which on todays machines is nothing)