Question

I’m writing a tic tac toe program and i have the board set up, and the game works for the majority. determining who wins. what i am trying to do right now is after a winner is determined, a message box pops up and says who ever wins. I would like the message box to contain two buttons. One button with the text, “Ok for new game” and the second button with the text, “Cancel to exit”. I am using Visual Basic 2010 Express.

Here is the code I have:

Public Class Form1
    Private turn As Integer = 1
    Private play() As String = {"O", "X"}
    Private board(2, 2) As String

    Private Structure arrayIndex
        Dim x As Integer
        Dim y As Integer
    End Structure

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        For x As Integer = 1 To 9
            Dim b As New Button With { _
                .Width = 80, _
                .Height = 80, _
                .Text = "", _
                .Location = New Point(60 + (((x - 1) Mod 3) * 80), 60 + (((x - 1) \ 3) * 80)), _
                .Tag = New arrayIndex With {.x = (x - 1) Mod 3, .y = (x - 1) \ 3}}
            Me.Controls.Add(b)
            AddHandler b.Click, AddressOf buttons_click

        Next
        Me.SetClientSizeCore(360, 360)


    End Sub

    Private Sub buttons_click(ByVal sender As System.Object, ByVal e As System.EventArgs)
        If DirectCast(sender, Button).Text <> "" Then Return
        DirectCast(sender, Button).Text = play(turn Mod 2)
        Dim index As arrayIndex = DirectCast(DirectCast(sender, Button).Tag, arrayIndex)
        board(index.x, index.y) = play(turn Mod 2)
        turn += 1
        winner()
    End Sub

    Private Sub winner()
        Dim rows(7) As String

        rows(0) = board(0, 0) & board(1, 0) & board(2, 0)
        rows(1) = board(0, 1) & board(1, 1) & board(2, 1)
        rows(2) = board(0, 2) & board(1, 2) & board(2, 2)
        rows(3) = board(0, 0) & board(0, 1) & board(0, 2)
        rows(4) = board(1, 0) & board(1, 1) & board(1, 2)
        rows(5) = board(2, 0) & board(2, 1) & board(2, 2)
        rows(6) = board(0, 0) & board(1, 1) & board(2, 2)
        rows(7) = board(2, 0) & board(1, 1) & board(0, 2)

        For x As Integer = 0 To 7
            If rows(x).Length = 3 AndAlso (rows(x)(0) = rows(x)(1) AndAlso rows(x)(0) = rows(x)(2)) Then
                MessageBox.Show(rows(x)(0) & "'s winsssss!", "We have a winner!", MessageBoxButtons.OKCancel, MessageBoxIcon.Information)
            If DialogResult.OK Then
            turn = 1
            ReDim board(2, 2)
            For Each ctrl As Control In Controls
            ctrl.Text = ""
            Next
            Return
            Else
               Me.Close()


            End If
    End Sub
End Class

Answer 1

The easiest way to do that is by creating a new Form that functions as a MessageBox. There are many API to customized the MessageBox but gives you extra time. So this is what you are going to do.

• Create a new Form
• Set MaximizeButton, MinimizeButton and ShowOnTitleBar to False
• Set FormBorderStyle to FixedDialog so it will not be sizeable
• Add two buttons on it (Ok for new game and Cancel to exit)
• Set StartUpPosition to CenterForm

Add this code to On for New Game Button (Click event)

DialogResult = DialogResult.Yes

Add this code to Cancel to exit (Click event)

DialogResult = DialogResult.No

When the game is finished, try to call the new form you have created.

Dim xForm as new frmAsk ' Assuming that frmAsk is the name of your new form
If xForm.showDialog = DialogResult.Yes Then
    ' New game here
Else
    ' exit game
End If

Hope this helps you.