Question

Working in Visual Studio with C#. I’m making a piece of software for a small office that captures lawsuits. Once a lawsuit is captured, the office has 15 days to send some documents to the tribunal. So deadLine is in 15 days.

But if there is for example, and update (update1) to the lawsuit, the office now has a new deadLine to send update1 documents.

So, deadLine for Capture is dd/MM/yyy
Then, deadLine for update1 is dd/MM/yyyy

But I need to exclude all non labor days, so the deadLines do not display any non labor days. Example:

Capture: 15 days
Update1: 5 days
Update2: 10 days
Update3: 7 days

So, if I capture today, July 28 2011, 15 days should be added to the deadLine variable, which would be August 12, but I have to exclude non labor days from a calendar. For example August 12 2011.

I’ve turned the DatePicker value to string, with format (dd/MM/yyyy), and I’m comparing it to a list of strings of non-valid days, with format (dd/MM/yyyy).

And if the deadLine falls on one of these days, I convert deadLine to dateTime, add 1 day, until it does not fall on one of these days. Then save the final dateTime value as the new deadLine.

Example:

string DeadLine;
string NonValidDay001 = 12/08/2011;
string NonValidDay001 = 15/08/2011;
string NonValidDay001 = 19/08/2011;

DeadLine = DatePicker01.Value.AddDays(15).ToString("dd/MM/yyyy");

while (DeadLine == NonValidDay001 | DeadLine == NonValidDay001 | DeadLine == NonValidDay001)
{
    dateTime dt = Convert.toDateTime(DeadLine);
    dt.AddDays(1).ToString("dd/MM/yyyy");
    DeadLine = dt;
}

The problem I’m having is, it is not adding days to the dealine if deadline matches non-valid days.

What I’m doing is not working in any way.

Could anyone enlighten me please. (=

Answer 1

If you wanted to skip over labour days within the time period (i.e. within the 15 days) then you could use the following (untested, typed straight in here):

public DateTime AddDaysExcluding(DateTime startDate, int days, params DateTime[] excludedDays)
{
    while(days != 0)
    {
        if (excludedDays.Contains(startDate))
            startDate = startDate.AddDays(1);

        startDate = startDate.AddDays(1);
        days--;
    }

    if (excludedDays.Contains(startDate))
        startDate = startDate.AddDays(1);
}

Example usage:

DateTime deadline = AddDaysExcluding(DatePicker01.Value, 15,
    new DateTime(2011, 8, 12), new DateTime(2011, 8, 15), new DateTime(2011, 8, 19));