C# equivalent of VB Public Module, With too please

Question

Hey everyone,

I'm converting a VB.net library to C# and having trouble finding the C# equivalent to a VB.Net Public Module.

In the same VB class is a With block. Any idea what the equivalent might be for that as well.

TIA Steve Campos

Answer 1

There is no With equivalent.

Depending on version, you can do:

var myCommand = new SqlCommand(SpMainInsert, myConnection) {
    CommandType = System.Data.CommandType.StoredProcedure
};

Module Definition

This is the correct definition based on the default declaration when creating a Module (Module template item) in a VB.NET Project. The private constructor is part of the declaration, regardless if it is required or not. This C# "Module Definition" is taken from a Microsoft resource many years back. I do not have reference to the source right now, but will try to post later.

internal { sealed | static } class Module1 {
    #if sealed
        private Module1() { }
    #endif
    public static void Method1() { }
    public static string Method2() { return "here"; }
} 

Calling Module Methods

    Module1.Method1();
    string foo = Module1.Method2();

Answer 2

Unfortunately there is no equivalent of a VB.Net module in C#. The closest thing is a static class. Both define a object which cannot have instance members but they have different semantics. The largest being that for VB.Net if a Module is in scope it's members can be accessed without qualification

Module Example 
  Public Function Sum(x as Integer, y As Integer) As Integer
    return x + y
  End Function
End Module

Class C1
  Sub Method1() 
    Dim x = Sum(13,42)
  End Sub 
Class

C# does not have this feature and requires qualified access for static class members.

There are a couple of other smaller differences

• Module members are implicitly shared while static class members require explicit static qualifiers
• Some minor trivia in the structure of the generated types