Detail Inside the Main method, a new instance of the Test class is allocated with the parameterless constructor.
Detail The Test constructor accesses the DateTime member variable. It compares the value against DateTime.MinValue, which returns true.
Info The line "DateTime dateTime1 = null" is commented out. This is because it won't compile, and the C# compiler will give you an error.
Note If this doesn't make sense, think of it in the same way as assigning an int to null.
//// Test instance of DateTime in class.//
Console.WriteLine("--- Instance DateTime ---");
Console.WriteLine(_importantTime == DateTime.MinValue);
static void Main()
//// Execute code in class constructor.//
Test test = new Test();
//// This won't compile!//// DateTime dateTime1 = null;//// This is the best way to null out the DateTime.//
DateTime dateTime2 = DateTime.MinValue;
}--- Instance DateTime ---
1/1/0001 12:00:00 AM
Null. When you try to assign a DateTime to null, the compiler will give an error "Cannot convert null to System.DateTime". The null value in the language is only used on reference types.
And The DateTime type never points at anything. It stores all its data in place of that reference, directly in the variable itself.