How can I have a sub that accepts a variable as byref without declaring what type of variable it is?

Question

How can I have a sub that accepts a variable as byref without declaring what type of variable it is (it could be int, string, etc.) but still have some of the other parameters defined?

I want a sub like this:

Private Sub example(ByRef variable, ByRef reader as MySqlDataReader, ByVal columnName as String)

Answer 1

您可以创建一个通用方法：

Private Sub Example(Of T)(ByRef variable As T, ByRef reader as MySqlDataReader, ByVal columnName as String)