Programming Forums - C# Datetime data types

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C# Datetime data types

I have 2 questions about datetimes in C#. First, I want to compare the current date and time to a date and time I have previously defined to see if they match. I compare the dates once a minute using a timer. My problem is the 2 times never match because the seconds don�t match. When I define the datetime I want to compare to the current datetime, I set the seconds to 00, but when the timer compares the current time to that, chances are it wont be right on the minute so they won't match. Here is the code I am using:

// "date" is my already defined date

if (System.DateTime.Now == date)

{

     // do stuff

}

Is there a way to compare the date and time excluding the seconds? I figured out a way to do it, but I was hoping to do it without such a big If statement. Here is how I did it:

// "date" is my already defined date

if ((System.DateTime.Now.Year == date.Year)

                && (System.DateTime.Now.Month == date.Month)

                && (System.DateTime.Now.Day == date.Day)

                && (System.DateTime.Now.Minute == date.Minute))

{

     // do stuff

}

My second question is how do I subtract say 10 minutes off an already defined datetime variable?

Thanks in advanced!

I can't think of an alternative to what you have other than putting your year, month, day and minute into a variables and then comparing them. The statement you have isn't too bad. I would say go ahead and use it.

As for your second question. To subtract 10 minutes, there is no subtract method. Fortunately, there are AddYears, AddMonths, AddHours, etc.
You should be able to just do Addminutes(-10). Example:

date.AddMinutes(-10); //Subtracts 10 minutes

That's the way it's done in my book. That's how I remember it :)

That will work just fine, thanks for the quick reply.