Difference between byte vs Byte data types in C# [duplicate]

Answer 1

Nothing, the lowercase one is a keyword which is an alias for the Byte type.

This is pure syntactic sugar.

Answer 2

byte is a built-in data type in C#.
System.Byte is a struct that represent a byte and provides extra methods like Parse and TryParse.

byte is alias of System.Byte struct. Different .NET languages have different aliases based on the semantics of the particular language, but they all map to specific types in the .NET framework.

Answer 3

The byte keyword is an alias for the System.Byte data type.

They represent the same data type, so the resulting code is identical. There are only some differences in usage:

• You can use byte even if the System namespace is not included. To use Byte you have to have a using System; at the top of the page, or specify the full namespace System.Byte.

• There are a few situations where C# only allows you to use the keyword, not the framework type, for example:

.

enum Fruits : byte // this works
{
  Apple, Orange
}

enum Fruits : Byte // this doesn't work
{
  Apple, Orange
}

Answer 4

also when using reflection ,,,

Type t=Type.GetType("System.Byte"); //works

Type t=Type.GetType("System.byte"); //doesn't work, I can see no way to use"byte" directly here without converting it to "Byte"

Answer 5

They are generally the same.

Answer 6

byte and System.Byte in C# are identical. byte is simply syntactic sugar, and is recommended by StyleCop (for style guidelines).