Parameters

value

A number of whole and fractional days. The value parameter can be negative or positive.

Returns

An object whose value is the sum of the date and time represented by this instance and the number of days represented by value.

Exceptions

Type	Reason
ArgumentOutOfRangeException	The resulting DateTime is less than DateTime.MinValue or greater than DateTime.MaxValue.

Remarks

This method does not change the value of this DateTime. Instead, it returns a new DateTime whose value is the result of this operation.

The fractional part of value is the fractional part of a day. For example, 4.5 is equivalent to 4 days, 12 hours, 0 minutes, 0 seconds, 0 milliseconds, and 0 ticks.

The value parameter is rounded to the nearest millisecond.

Requirements