Question

How can I create a method that has optional parameters in it in Visual Basic?

Answer 1

Use the Optional keyword and supply a default value. Optional parameters must be the last parameters defined, to avoid creating ambiguous function signatures.

Sub MyMethod(ByVal Param1 As String, Optional ByVal FlagArgument As Boolean = True)     If FlagArgument Then         'Do something special         Console.WriteLine(Param1)     End If  End Sub 

Call it like this:

MyMethod("test1") 

Or like this:

MyMethod("test2", False)