c# DateTime, Timespan question about period of times

What I'm basically looking to do is monitor a period of time between 2 dates, say 01/01/2011 to 04/04/2011.

I am then looking for a way to then compare 2 new dates, where if these new dates fall between the above ones i can say assign a boolea开发者_开发问答n a value and if they dont i wont.

so if 02/02/2011 to 03/03/2011 then assign the boolean wheras if outside then no. ??

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You can just use normal compare operators with DateTime to do this.

For example

public bool Check(DateTime d1, DateTime d2)
{
    DateTime StartDate = new DateTime(2011,1,1);
    DateTime EndDate = new DateTime(2011,4,4);

    return ((d1 >= StartDate && d1 <= EndDate) && (d2 >= StartDate && d2 <= EndDate));
}

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This is a straight-forward as:

bool isInside = (testDate >= startDate && testDate <= endDate);

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This example show how to check if a date is between two dates.

Code has been tested and works:

DateTime dtStart = new DateTime(2011, 02, 02);
DateTime dtEnd = new DateTime(2011, 03, 03);

if (DateTime.Now >= dtStart && DateTime.Now <= dtEnd)
{
    // Date is within range
}