VB.NET如何在.Name = var的图片框中执行语句

Question

我正在重新创建Minesweeper。 我所有的代码都是在运行时创建的，请随时通过c＆p帮助进行故障排除。

我有一个循环，该循环创建带有随机地雷的图片框（pbxNewZone）网格，如果该框是地雷，则将tag设置为true，否则将false设置为false。

我直接为称为“ pbxNewZoneClicked”的单击事件广播了这些图片框（现在称为“ pb”），并读取了标记。 到目前为止，它显示用于测试的地雷，并且如果我根据标签的条件单击图片框，则会显示命中的地雷并清除img。

现在，我需要能够单击图像，并检查周围的8张img是否存在地雷。 所有地雷均通过网格上的x和y坐标（从字面上基于在form_load上创建的Integers x和y的坐标）来命名，并且基于1，这意味着第一个地雷的名称为“ 1，1”而不是“ 0，0”。

因此，如果我单击名为“ 8，7”的pb（重命名为直接广播的图片框），则将xValueCheck和yValueCheck变量分别分列为“ 8”和“ 7”。 然后，我将两者都减去一个（在框的左上角），Dim Box1 As String，在这种情况下，该值=“ 7，6”。

这是我的逻辑。 查找名称为Box1的pb，如果该pb的标签= True，则计数器+ = 1。

当我不单击它时，如何查看pb的标签？

这是到目前为止我得到的：

Public Class Form1
Inherits System.Windows.Forms.Form
Dim active As Boolean = True
Dim images(8) As Image 'declares image array

Dim zonesY As Integer = 9
Dim zonesX As Integer = 9

Dim Guy As Object
Dim pbxNewZone As PictureBox = DirectCast(Guy, PictureBox)  'declares pbxNewZone as a picturebox variable

Dim generator As New Random

Public Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    images(0) = Image.FromFile("clear.png")
    images(1) = Image.FromFile("1.png")
    images(2) = Image.FromFile("2.png")
    images(3) = Image.FromFile("3.png")
    images(4) = Image.FromFile("4.png")
    images(5) = Image.FromFile("5.png")
    images(6) = Image.FromFile("blank.png")
    images(7) = Image.FromFile("hit.png")
    images(8) = Image.FromFile("mine.png")

    Dim x As Integer  'declares x as an integer variable
    Dim y As Integer  'declares y as an integer variable
    Me.SuspendLayout()  'suspends creation of layout

    For y = 1 To zonesY 'starts a For loop (1 to zonesY number of loops)
        For x = 1 To zonesX  'starts a For loop (1 to zonesX number of loops)
            Dim zonesize1 As Integer
            Dim zonesize2 As Integer

            pbxNewZone = New PictureBox

            Dim blockStatus As Integer
            Dim allZones As Integer
            allZones = zonesX * zonesY
            blockStatus = generator.Next(0, allZones)

            pbxNewZone.Name = y & ", " & x
            If blockStatus < (allZones / 5) Then
                pbxNewZone.Tag = True
                If pbxNewZone.Tag = True Then
                    pbxNewZone.Image = images(8)
                End If
            Else
                pbxNewZone.Tag = False
                If pbxNewZone.Tag = False Then
                    pbxNewZone.Image = images(6)
                End If
            End If
            pbxNewZone.Height = 16
            pbxNewZone.Width = 16
            zonesize1 = pbxNewZone.Height 'sets out all of the boxes on the form.
            zonesize2 = pbxNewZone.Width
            pbxNewZone.Left = ((x - 1) * zonesize1 + 15)
            pbxNewZone.Top = ((y - 1) * zonesize2 + 15)
            Me.Controls.Add(pbxNewZone)
            '  Wire this control up to an appropriate event handler
            AddHandler pbxNewZone.Click, AddressOf pbxNewZoneClicked

        Next
    Next
    Me.Height = (pbxNewZone.Height * zonesY + 63)  'sets the height of fmmGame
    Me.Width = (pbxNewZone.Width * zonesX + 40)  'sets the width of frmGame

End Sub

Private Sub pbxNewZoneClicked(ByVal sender As System.Object, ByVal e As System.EventArgs)

    If active = True Then
        Dim pb As PictureBox = DirectCast(sender, PictureBox)

        Dim Status As String = "Clear" ' Status - Testing Purposes Only
        If pb.Tag = True Then ' Status - Testing Purposes Only
            Status = "Mine" ' Status - Testing Purposes Only
        End If
        MsgBox(pb.Name & vbCrLf & "Status: " & Status, , "Test") ' Post Statistics of box.

        Dim xValueCheck As Integer = pb.Name.Substring(0, 1)
        MsgBox(xValueCheck) ' To spit out y value from name
        Dim yValueCheck As Integer = pb.Name.Substring(3, 1)
        MsgBox(yValueCheck) ' To spit out y value from name

        Dim Box1 As String = (xValueCheck - 1) & ", " & (yValueCheck - 1)
        MsgBox("Box1 = " & Box1, , "Test")
        Dim count As Integer = 0

        If pb.Tag = True Then
            pb.Image = images(7) ' Hit Image
            active = False
            MsgBox("No Longer Active", , "Test") ' Testing Purposes Only
        ElseIf pb.Tag = False Then
            'ENTER CODE THAT WILL READ BOXES AROUND IT
            'ENTER CODE THAT WILL READ BOXES AROUND IT
            'ENTER CODE THAT WILL READ BOXES AROUND IT
            'ENTER CODE THAT WILL READ BOXES AROUND IT
            'ENTER CODE THAT WILL READ BOXES AROUND IT

            pb.Image = images(count) ' Clear Image by default.
        End If

    End If
End Sub

End Class

Answer 1

是的。 请考虑使用2D阵列保存图片框。 否则，您将需要一些（过于复杂的）反射代码来查找控件。

2D阵列：

Private oGrid(10,10) As PictureBox

Private Sub SetupGrid() 
  '
  '  Initialize the grid here
  '
  '  Place the coordinate of the cell in the .Tag property.
  '
End Sub

Private Sub GridCellClickHandler(ByVal sender As System.Object, ByVal e As System.EventArgs) 
  Dim tLocation As Point = sender.Tag
  '
  ' Scan around the other 8 cells
  '  eg.  oGrid(tLocation.X - 1, tLocation.Y)
  '
End Sub

当然，如果您创建一个新的用户控件来表示网格单元，那么所有这些额外的数据整理将变得更加容易。