I'm trying out a program which I found on the net. Why is it necessary to put to curly braces at the end of the statement? It gives an error: "Byte has no constructors".
Dim data As Byte() = New Byte(1023) {}
I can't put the code like this either, it produces the error "byte cannot be a 1-dimensional array".
Dim arr As Byte() = New Byte()
Can you explain to me why this is happening?
Some flavors
Dim b() As Byte 'b is nothing
Dim b1(1023) As Byte 'b1 is an array of 1024 elements, all equal to 0
Dim b2() As Byte = New Byte() {85, 99, 1, 255} 'four elements
b = New Byte() {} 'zero element array
b = New Byte() {1, 2} 'two element array
Inference is generally a bad idea.
You need curly braces, because if you don't put them, it means you're trying to call a constructor for a single object -- which is an error for different reasons:
Byte doesn't have a constructor. (This is only true in this particular case.)
As Byte() instead of As Byte.As Byte() part entirely -- that way, the variable will have the same type as whatever you assign it.
var in C#. Just learn how to declare variables and what the appropriate syntax is. It's not that hard. If you don't know the difference between an array and an object, you're going to have a lot of problems anyway. No reason to create additional ones by programming with Option Infer On.Dim different from var, since you mentioned those are different?Dim has multiple meanings in VB. If you don't set your project settings exactly the right way, you'll end up where everything is declared as an Object. You need to have Option Strict On and Option Infer Off. The article linked to by the OP doesn't make this clear, and in fact almost so much as encourages you to compile with Option Strict Off. You can't break things nearly this badly with var.