Tic Tac Toe Probelm

[danthevan]

Hello, this is my first thread in DaniWeb..
I'm still a VB.net beginner and I like programming so much.
I had a problem when I was making Tic Tac Toe code, it was just for practicing so I have created a form and added 9 buttons and named them btn1, btn2 .... till btn9.

I've wrote the code to check for X's or O's turn and many other things but the problem was checking the winner at the end.

Public Class Form1

    Dim ReturnTurn As Integer = 1
    Dim StopButton(8) As Boolean 'Check Click
    Dim CheckWinnerReturn As Boolean
    Dim CheckWinnerValue As Integer

    '' Buttons Variables
    Dim b1, b2, b3, b4, b5, b6, b7, b8, b9 As Integer

    Sub CheckTurnTrueValidations(ByVal SenderO As Object, ByVal ButtonNo As Integer)
        If StopButton(ButtonNo) = False Then
            If ReturnTurn Mod 2 Then
                SenderO.text = "X"
                ReturnTurn += 1
                '   CheckWinnerReturn = True
                StopButton(ButtonNo) = True

            Else
                SenderO.text = "O"
                ReturnTurn += 1
                '   CheckWinnerReturn = False
                StopButton(ButtonNo) = True
            End If
        Else
            MsgBox("Already played :(")
        End If

    End Sub

    Function CheckWinnerValues()
        'If CheckWinnerReturn = True Then
        If ReturnTurn Mod 2 Then
            CheckWinnerValue = 1


        Else

            CheckWinnerValue = 2
            'End If
        End If
        Return CheckWinnerValue


    End Function

    Sub CheckWinner()
        If b1 = b2 = b3 OrElse b4 = b5 = b6 OrElse b7 = b8 = b9 _
            OrElse b1 = b4 = b7 OrElse b2 = b5 = b8 OrElse b3 = b6 = b9 _
                OrElse b1 = b5 = b9 OrElse b3 = b5 = b7 Then

            If CheckWinnerValue = 1 Then
                MsgBox("X wins")
            Else
                MsgBox("O wins")
            End If
        End If

    End Sub

    Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click
        CheckTurnTrueValidations(sender, 0)
        b1 = CheckWinnerValues()
        CheckWinner()

    End Sub

    Private Sub btn2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn2.Click
        CheckTurnTrueValidations(sender, 1)
        b2 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn9.Click
        CheckTurnTrueValidations(sender, 8)
        b9 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn8.Click
        CheckTurnTrueValidations(sender, 7)
        b8 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn7.Click
        CheckTurnTrueValidations(sender, 6)
        b7 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn5.Click
        CheckTurnTrueValidations(sender, 4)
        b5 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn4.Click
        CheckTurnTrueValidations(sender, 3)
        b4 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn3.Click
        CheckTurnTrueValidations(sender, 2)
        b3 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub btn6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn6.Click
        CheckTurnTrueValidations(sender, 5)
        b6 = CheckWinnerValues()
        CheckWinner()
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        b1 = 11
        b2 = 12
        b3 = 13
        b4 = 14
        b5 = 15
        b6 = 16
        b7 = 17
        b8 = 18
        b9 = 19
    End Sub
End Class

After each click it checks for the winner using: CheckWinner() but I don't know why.

Thanks.

[Unhnd_Exception]

Heres a recent Tic Tac Toe thread
http://www.daniweb.com/software-development/vbnet/threads/380485