Question

What is the equivalent of (byte) in VB.NET:

C#:

uint value = 1161;
byte data = (byte)value;

data = 137

VB.NET:

  Dim value As UInteger = 1161
  Dim data1 As Byte = CType(value, Byte)
  Dim data2 As Byte = CByte(value)

Exception: Arithmetic operation resulted in an overflow.

How can I achieve the same result as in C#?

Answer 1

By default, C# does not check for integer overflows, but VB.NET does.

You get the same exception in C# if you e.g. wrap your code in a checked block:

checked
{
    uint value = 1161;
    byte data = (byte)value;
}

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In your VB.NET project properties, enable Configuration Properties => Optimizations => Remove Integer Overflow Checks, and your VB.NET code will work exactly like your C# code.

Integer overflow checks are then disabled for your entire project, but that’s usually not a problem.