Visual Basic 2015 Unleashed

Implementing Generic Methods

In Listing 14.1 you saw how to implement a method that receives a generic type parameter. Generic methods are something more. You can add the Of keyword to a generic method to parameterize the method, other than getting generic-type parameters. The following code provides an example, where two arrays of integers are swapped:

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'Arrays are passed by reference in this casePublic Sub Swap(Of T1)(ByRef array1() As T1, ByRef array2() As T1)    Dim temp() As T1    temp = array1    array1 = array2    array2 = tempEnd Sub

You could even rewrite the preceding code snippet in a more abstract way, as follows, which still works well with arrays:

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Public Sub Swap(Of T1)(ByRef ...