C# Language
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Effective usage of underlying Nullable
argument - Get the value of a nullable type
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C# Language Nullable types Getting a default value from a nullable
Example
The .GetValueOrDefault() method returns a value even if the .HasValue property is false (unlike the Value property, which throws an exception).
class Program
{
static void Main()
{
int? nullableExample = null;
int result = nullableExample.GetValueOrDefault();
Console.WriteLine(result); // will output the default value for int - 0
int secondResult = nullableExample.GetValueOrDefault(1);
Console.WriteLine(secondResult) // will output our specified default - 1
int thirdResult = nullableExample ?? 1;
Console.WriteLine(secondResult) // same as the GetValueOrDefault but a bit shorter
}
}
Output:
0
1
