Question

How can i create a optional parameter in C# as we create in VB.Net

Public Sub Demo(ByVal a As Integer,Optional ByVal  b as integer=3)
End Sub

I want to declare this in C#

I am using VS2008

Answer 1

This will do the trick:

public void Demo(int a, int b = 3)
{
    //Do some stuff
}

Edit:

If you cannot use optional parameters and don’t want to use nullable types, method overloading might do the work:

public void Demo(int a)
{
    Demo(a, 3);
}

public void Demo(int a, int b)
{
    //Do stuff
}