CODEWITHSUNDEEP
c#vb.net
user2868053
user2868053

Reputation: 33

How do I instantiate an object in VB.NET without storing to a variable?

I would like to create an instance of an object and execute a method of the object, but not go through the extra step of storing that instance in a declared variable.

For example, suppose I have a simple Adder class:

public class Adder
{
    private int m_int1;
    private int m_int2;
    public Adder(int int1, int int2)
    {
        this.m_int1 = int1;
        this.m_int2 = int2;
    }
    public int getSum()
    {
        return m_int1 + m_int2;
    }
}

I can of course create an instance, store in a variable, and use it:

Adder a = new Adder(1, 2);
int rslt = a.getSum();
// rslt = 3

However, in C#, I can skip the variable storage step, and just call the method on the result of the instantiation:

int rslt = new Adder(1, 2).getSum();
// rslt = 3

I can't seem to do the same in VB.NET, however. A statement like:

New Adder(1, 2)

is considered a syntax error unless the result is stored in a variable.

The workaround would be to create a static "Create" method in the class that returns a new instance of the class, but I was wondering if there is a VB.NET equivalent to what's possible in C#.

Upvotes: 3

Views: 1283

Answers (1)

Karl Anderson
Karl Anderson

Reputation: 34846

Try this:

Dim rslt As Integer = New Adder(1, 2).getSum()

Upvotes: 10

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