C#/.NET - convert int to byte

In C#/.NET type can be converted to byte in few ways.

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int input = 123;

byte output = Convert.ToByte(input);

Console.WriteLine(output);

Output:

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123

Note: Convert.ToByte prevents value overflowing (min value 0, max value 255).

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int input = 1234;

byte output = (byte)input;

Console.WriteLine(output);

Output:

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123

Note: This kind of conversion cuts most significant bits!

Copy

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For conversion int 1234 to byte cutting behaves like in this example:

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______________________________________________________      ___________

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Bit index: 31        23        15        7       0    |    |           |

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Bit value: 0000 0000 0000 0000 0000 0100 1101 0010 (2)| ‬=> | 1234 (10) |

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Bit value:    ‭                           1101 0010‬ (2)| => | 210  (10) |

1. https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/types/casting-and-type-conversions