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

Question

Which is equivalent (byte) in VB.NET:

FROM#:

 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 led to 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, for example. wrap your code in a checked block:

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

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

Integer overflow checks are then disabled for the entire project, but this is usually not a problem.

Answer 2

Try first cutting out the most significant bytes from the number, and then converting it to Byte:

 Dim value As UInteger = 1161 Dim data1 As Byte = CType(value And 255, Byte) Dim data2 As Byte = CByte(value And 255) 

Answer 3

To get only the most significant byte, you can do pretty negligent

 Dim data1 = BitConvertor.GetBytes(value)(0) 

This is explicit and you will not need to disable overflow checking.