how to calculate date in asp.net with #

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i want to show last three month data in datalist;
i hv one column in table date which is datetime type.
if user want to see last three month data then they can,so how to calculate data

Posted 12-Oct-11 2:34am

soniya sangal

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P.Salini 12-Oct-11 8:36am

clarify your question

sandesh.mumbai 12-Oct-11 8:40am

please clarify what exactly u r doing

3 solutions

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Reiss · Answer 1 · 2011-10-12T03:01:00

Something like

C#

List<datetime> dates = new List<datetime>();

DateTime userDate = DateTime.Now;

DateTime currentDate = userDate.AddMonths(-3);

while (currentDate <= userDate)
{
    dates.Add(currentDate);
    currentDate = currentDate.AddDays(1);
}

DataList dl = new DataList();
dl.DataSource = dates;
dl.DataBind();
</datetime></datetime>

fjdiewornncalwe · Answer 2 · 2011-10-12T02:39:00

You need to create a date range for your query. What the query itself looks like is entirely dependent on what your data source is going to be. (i.e. sql, excel file, text file???). If your user picks a date and you want to calculate the date 3 months previous, then you just need to do the following:

C#

DateTime startDate = userDate.AddMonths( -3 );

kishorekke · Answer 3 · 2011-10-12T03:22:00

Solution 3

SQL

SELECT * FROM table WHERE DATEDIFF(mm,date column,getdate())<=3

Posted 12-Oct-11 3:22am

kishorekke

Updated 12-Oct-11 3:25am

v3

how to calculate date in asp.net with #

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