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C# Nullable Datetime
Using the DateTime nullable type, you can assign the null literal to the DateTime type.
A nullable DateTime is specified using the following question mark syntax.
DateTime?
The following is the code to implement Nullable Datetime.
Example
using System;
class Program {
static void Main() {
DateTime? dt = null;
DateFunc(dt);
dt = DateTime.Now;
DateFunc(dt);
dt = null;
Console.WriteLine(dt.GetValueOrDefault());
}
static void DateFunc(DateTime? dt) {
if (dt.HasValue) {
Console.WriteLine(dt.Value);
} else {
Console.WriteLine(0);
}
}
}Output
0 9/17/2018 8:27:07 AM 1/1/0001 12:00:00 AM
Updated on: 23-Jun-2020
11K+ Views
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