What is "long?"
i saw in code:
long?question mark mean long?
the ? means can contain null - nullable version of long.
long? mylong;
can set null.
long mylong;
can't.
from
http://msdn.microsoft.com/en-us/library/ctetwysk.aspx
long signed 64 bit integer can take pretty big numbers:
the long keyword denotes integral type stores values according size , range shown in following table.
| type | range | size | .net framework type |
|---|---|---|---|
| long | –9,223,372,036,854,775,808 9,223,372,036,854,775,807 | signed 64-bit integer |
Visual Studio Languages , .NET Framework > Visual C#
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