Generate all real combinations in VB .NET

Question

I need to generate all combinations (not permutations) in VB .NET, I\'ve been search and all I found is for permutations (some says combinations but when I was try it, all a

Answer 1

This should returns all combinations of said depth in a IEnumerable(Of String)

 Function GetCombinations(ByVal depth As Integer, ByVal values As String()) As IEnumerable(Of String)
        If depth > values.Count + 1 Then Return New List(Of String)
        Dim result = New List(Of String)

        For i = 0 To depth - 1
            For y = 0 To values.Count - 1
                If i = 0 Then
                    result.Add(values(y))
                Else
                    result.Add(values(i - 1) + values(y))
                End If
            Next
        Next
        Return result
    End Function

Edit:

Example usage:

        Dim data_array As String() = {"1", "2", "3", "4", "5", "6"}
        Dim reslt = GetCombinations(2, data_array)