Number sequence in VB.Net

I have a 30 buttons each label 1-10 three times, so i have three 1's, three 2's etc.

I have 4 text boxes, when i hit any 4 buttons then it will fill the 4 boxes.

I need to return a value of true if the text boxes contain 3 numbers that can be in order.

So if the number was 7498 then that would be true - 789

or 9243 would be true as 234.

I tried to compare the boxes and then add a count, if x = 3 then true but I ran into trouble as the boxes can have the same numbers - 2223.

Any ideas as I am completely lost now - been staring at it so long it doesn't look like it is in English any more.

Your logic doesn't make sense to me because would mean that your term of sequential numbers would allow a different number breaking up the sequence as is the case with 7689(your sequence: 789 but a true sequence would be: 89).

Anyways, with that aside take a look at this function and see if it works for you:

Code:

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    Private Function SequentialNumbers(ByVal input As String) As Boolean
        Dim numbers() As Int32 = Array.ConvertAll(input.ToCharArray(), Function(c) Convert.ToInt32(c))
        For index As Int32 = 0 To numbers.Length - 2
            For nestedIndex As Int32 = index + 1 To numbers.Length - 1
                If numbers(index) = numbers(nestedIndex) - 1 Then
                    Return True
                End If
            Next
        Next

        Return False
    End Function

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