在模块中引用到窗体中的控件，必须在该控件名之前由相应的窗体名作为前导，例如：
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1，要引用窗体Form1中的控件TextBox1
MsgBox(Form1.TextBox1.Text)
2，要引用窗体Form2中的控件TextBox1
MsgBox(Form2.TextBox1.Text)
目前没看到vb.net
不过C#也是一样的 原理都差不多，看看就会了
在C#程序中实现插件架构
PublicClassSimpleCalculatorInheritsSystem.Windows.Forms.Form#Region"Windows窗体设计器生成的代码"PublicSubNew()MyBase.New()'该调用是Windows窗体设计器所必需的。InitializeComponent()'在InitializeComponent()调用之后添加任何初始化EndSub'窗体重写处置以清理组件列表。ProtectedOverloadsOverridesSubDispose(ByValdisposingAsBoolean)IfdisposingThenIfNot(componentsIsNothing)Thencomponents.Dispose()EndIfEndIfMyBase.Dispose(disposing)EndSub'Windows窗体设计器所必需的PrivatecomponentsAsSystem.ComponentModel.IContainer'注意：以下过程是Windows窗体设计器所必需的'可以使用Windows窗体设计器修改此过程。'不要使用代码编辑器修改它。FriendWithEventsLabel1AsSystem.Windows.Forms.LabelFriendWithEventsTextBox1AsSystem.Windows.Forms.TextBoxFriendWithEventsButton1AsSystem.Windows.Forms.ButtonFriendWithEventsButton2AsSystem.Windows.Forms.ButtonFriendWithEventsButton3AsSystem.Windows.Forms.ButtonFriendWithEventsButton4AsSystem.Windows.Forms.ButtonFriendWithEventsButton5AsSystem.Windows.Forms.ButtonFriendWithEventsButton6AsSystem.Windows.Forms.ButtonFriendWithEventsButton7AsSystem.Windows.Forms.ButtonFriendWithEventsButton8AsSystem.Windows.Forms.ButtonFriendWithEventsButton9AsSystem.Windows.Forms.ButtonFriendWithEventsButton10AsSystem.Windows.Forms.ButtonFriendWithEventsButton11AsSystem.Windows.Forms.ButtonFriendWithEventsButton12AsSystem.Windows.Forms.ButtonFriendWithEventsButton13AsSystem.Windows.Forms.ButtonFriendWithEventsButton14AsSystem.Windows.Forms.ButtonFriendWithEventsButton15AsSystem.Windows.Forms.ButtonFriendWithEventsButton16AsSystem.Windows.Forms.ButtonPrivateSubInitializeComponent()Me.Label1=NewSystem.Windows.Forms.LabelMe.TextBox1=NewSystem.Windows.Forms.TextBoxMe.Button1=NewSystem.Windows.Forms.ButtonMe.Button2=NewSystem.Windows.Forms.ButtonMe.Button3=NewSystem.Windows.Forms.ButtonMe.Button4=NewSystem.Windows.Forms.ButtonMe.Button5=NewSystem.Windows.Forms.ButtonMe.Button6=NewSystem.Windows.Forms.ButtonMe.Button7=NewSystem.Windows.Forms.ButtonMe.Button8=NewSystem.Windows.Forms.ButtonMe.Button9=NewSystem.Windows.Forms.ButtonMe.Button10=NewSystem.Windows.Forms.ButtonMe.Button11=NewSystem.Windows.Forms.ButtonMe.Button12=NewSystem.Windows.Forms.ButtonMe.Button13=NewSystem.Windows.Forms.ButtonMe.Button14=NewSystem.Windows.Forms.ButtonMe.Button15=NewSystem.Windows.Forms.ButtonMe.Button16=NewSystem.Windows.Forms.ButtonMe.SuspendLayout()''Label1'Me.Label1.Location=NewSystem.Drawing.Point(16,16)Me.Label1.Name="Label1"Me.Label1.Size=NewSystem.Drawing.Size(48,16)Me.Label1.TabIndex=0Me.Label1.Text="结果："''TextBox1'Me.TextBox1.Location=NewSystem.Drawing.Point(64,8)Me.TextBox1.Name="TextBox1"Me.TextBox1.Size=NewSystem.Drawing.Size(120,21)Me.TextBox1.TabIndex=1Me.TextBox1.Text=""''Button1'Me.Button1.Location=NewSystem.Drawing.Point(200,8)Me.Button1.Name="Button1"Me.Button1.Size=NewSystem.Drawing.Size(56,24)Me.Button1.TabIndex=2Me.Button1.Text="清空"''Button2'Me.Button2.Location=NewSystem.Drawing.Point(48,56)Me.Button2.Name="Button2"Me.Button2.Size=NewSystem.Drawing.Size(24,24)Me.Button2.TabIndex=3Me.Button2.Text="1"''Button3'Me.Button3.Location=NewSystem.Drawing.Point(88,56)Me.Button3.Name="Button3"Me.Button3.Size=NewSystem.Drawing.Size(24,24)Me.Button3.TabIndex=4Me.Button3.Text="2"''Button4'Me.Button4.Location=NewSystem.Drawing.Point(136,56)Me.Button4.Name="Button4"Me.Button4.Size=NewSystem.Drawing.Size(24,24)Me.Button4.TabIndex=5Me.Button4.Text="3"''Button5'Me.Button5.Location=NewSystem.Drawing.Point(48,88)Me.Button5.Name="Button5"Me.Button5.Size=NewSystem.Drawing.Size(24,24)Me.Button5.TabIndex=6Me.Button5.Text="4"''Button6'Me.Button6.Location=NewSystem.Drawing.Point(88,88)Me.Button6.Name="Button6"Me.Button6.Size=NewSystem.Drawing.Size(24,24)Me.Button6.TabIndex=7Me.Button6.Text="5"''Button7'Me.Button7.Location=NewSystem.Drawing.Point(136,88)Me.Button7.Name="Button7"Me.Button7.Size=NewSystem.Drawing.Size(24,24)Me.Button7.TabIndex=8Me.Button7.Text="6"''Button8'Me.Button8.Location=NewSystem.Drawing.Point(48,120)Me.Button8.Name="Button8"Me.Button8.Size=NewSystem.Drawing.Size(24,24)Me.Button8.TabIndex=9Me.Button8.Text="7"''Button9'Me.Button9.Location=NewSystem.Drawing.Point(88,120)Me.Button9.Name="Button9"Me.Button9.Size=NewSystem.Drawing.Size(24,24)Me.Button9.TabIndex=10Me.Button9.Text="8"''Button10'Me.Button10.Location=NewSystem.Drawing.Point(136,120)Me.Button10.Name="Button10"Me.Button10.Size=NewSystem.Drawing.Size(24,24)Me.Button10.TabIndex=11Me.Button10.Text="9"''Button11'Me.Button11.Location=NewSystem.Drawing.Point(48,152)Me.Button11.Name="Button11"Me.Button11.Size=NewSystem.Drawing.Size(24,24)Me.Button11.TabIndex=12Me.Button11.Text="0"''Button12'Me.Button12.Location=NewSystem.Drawing.Point(176,56)Me.Button12.Name="Button12"Me.Button12.Size=NewSystem.Drawing.Size(24,24)Me.Button12.TabIndex=13Me.Button12.Text="+"''Button13'Me.Button13.Location=NewSystem.Drawing.Point(176,88)Me.Button13.Name="Button13"Me.Button13.Size=NewSystem.Drawing.Size(24,24)Me.Button13.TabIndex=14Me.Button13.Text="-"''Button14'Me.Button14.Location=NewSystem.Drawing.Point(176,120)Me.Button14.Name="Button14"Me.Button14.Size=NewSystem.Drawing.Size(24,24)Me.Button14.TabIndex=15Me.Button14.Text="*"''Button15'Me.Button15.Location=NewSystem.Drawing.Point(176,152)Me.Button15.Name="Button15"Me.Button15.Size=NewSystem.Drawing.Size(24,24)Me.Button15.TabIndex=16Me.Button15.Text="/"''Button16'Me.Button16.Location=NewSystem.Drawing.Point(88,152)Me.Button16.Name="Button16"Me.Button16.Size=NewSystem.Drawing.Size(72,24)Me.Button16.TabIndex=17Me.Button16.Text="计算"''SimpleCalculator'Me.AutoScaleBaseSize=NewSystem.Drawing.Size(6,14)Me.ClientSize=NewSystem.Drawing.Size(264,190)Me.Controls.Add(Me.Button16)Me.Controls.Add(Me.Button15)Me.Controls.Add(Me.Button14)Me.Controls.Add(Me.Button13)Me.Controls.Add(Me.Button12)Me.Controls.Add(Me.Button11)Me.Controls.Add(Me.Button10)Me.Controls.Add(Me.Button9)Me.Controls.Add(Me.Button8)Me.Controls.Add(Me.Button7)Me.Controls.Add(Me.Button6)Me.Controls.Add(Me.Button5)Me.Controls.Add(Me.Button4)Me.Controls.Add(Me.Button3)Me.Controls.Add(Me.Button2)Me.Controls.Add(Me.Button1)Me.Controls.Add(Me.TextBox1)Me.Controls.Add(Me.Label1)Me.Name="SimpleCalculator"Me.Text="简单计算器"Me.ResumeLayout(False)EndSub#EndRegionPrivateSubTextBox1_TextChanged(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)EndSubPrivateSubTextBox1_TabStopChanged(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)EndSubPrivateSubButton2_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton2.ClickDimbtnAsButton'按钮类型的变量btn=sender'把产生该事件的按钮对象赋值给btnTextBox1.Text=TextBox1.Text+btn.Text'把该按钮的Text属性值连接到TextBox1中EndSubPrivateSubButton3_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton3.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton4_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton4.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton5_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton5.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton6_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton6.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton7_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton7.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton8_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton8.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton9_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton9.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton10_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton10.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton11_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton11.ClickDimbtnAsButtonbtn=senderTextBox1.Text+=btn.TextEndSubPrivateSubButton12_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton12.ClickDimbtnAsButtonbtn=sender'在文本框的Text属性后连接一个空格、本按钮的Text属性值和一个空格TextBox1.Text=TextBox1.Text+""+btn.Text+""EndSubPrivateSubButton1_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton1.ClickTextBox1.Text=""'清空文本框EndSubPrivateSubButton13_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton13.ClickDimbtnAsButtonbtn=senderTextBox1.Text=TextBox1.Text+""+btn.Text+""EndSubPrivateSubButton14_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton14.ClickDimbtnAsButtonbtn=senderTextBox1.Text=TextBox1.Text+""+btn.Text+""EndSubPrivateSubButton15_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton15.ClickDimbtnAsButtonbtn=senderTextBox1.Text=TextBox1.Text+""+btn.Text+""EndSubPrivateSubButton16_Click(ByValsenderAsSystem.Object,ByValeAsSystem.EventArgs)HandlesButton16.Click'发生错误转移到标号“ErrorPro”指定的行去执行错误处理程序OnErrorGoToErrorProDimrAsDecimal'保存计算结果的变量DimtAsString=TextBox1.Text'用于保存文本框中的算术表达式DimspaceAsInteger=t.IndexOf("")'搜索空格位置,如果没有空格，返回值为0'字符串的取子符方法，第二个参数小于0，则将产生错误号为5的异常，即过程参数不正确Dims1AsString=t.Substring(0,space)'通过取子串方法获得第一个运算数DimopAsString=t.Substring(space+1,1)'通过取子串方法获得运算符Dims2AsString=t.Substring(space+3)'通过取子串方法获得第二个运算数Dimarg1,arg2AsIntegerarg1=Val(s1):arg2=Val(s2)SelectCaseopCase"+":r=arg1+arg2Case"-":r=arg1-arg2Case"*":r=arg1*arg2Case"/":r=arg1/arg2CaseElseMsgBox("输入的运算符有误！")ExitSubEndSelectTextBox1.Text=CStr(r)'显示结果ExitSub'退出过程ErrorPro:'错误处理程序块SelectCaseErr.NumberCase6'除数为零时，或运算溢出时的错误号MsgBox("算术运算溢出！",,"溢出提示")TextBox1.Focus()ExitSubCase5'Substring过程的参数不符合要求的错误号MsgBox("必须输入运算符和第二个运算数！",,"运算数少")ExitSubCaseElse'其它情况显示错误号和错误原因MsgBox("错误号为"Err.NumberChr(10)Chr(13)"错误原因："Err.Description)ExitSubEndSelectEndSubEndClass
Public Class ks
Inherits System.Windows.Forms.Form
#Region " Windows 窗体设计器生成的代码 "
Public Sub New()
MyBase.New()
'该调用是 Windows 窗体设计器所必需的。
InitializeComponent()
'在 InitializeComponent() 调用之后添加任何初始化
End Sub
'窗体重写 dispose 以清理组件列表。
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
'Windows 窗体设计器所必需的
Private components As System.ComponentModel.IContainer
'注意: 以下过程是 Windows 窗体设计器所必需的
'可以使用 Windows 窗体设计器修改此过程。
'不要使用代码编辑器修改它。
Friend WithEvents tx As System.Windows.Forms.TextBox
Friend WithEvents ty As System.Windows.Forms.TextBox
Friend WithEvents tz As System.Windows.Forms.TextBox
Friend WithEvents ok As System.Windows.Forms.Button
Friend WithEvents l1 As System.Windows.Forms.Label
Friend WithEvents l2 As System.Windows.Forms.Label
Friend WithEvents l3 As System.Windows.Forms.Label
System.Diagnostics.DebuggerStepThrough() Private Sub InitializeComponent()
Me.l1 = New System.Windows.Forms.Label
Me.l2 = New System.Windows.Forms.Label
Me.l3 = New System.Windows.Forms.Label
Me.tx = New System.Windows.Forms.TextBox
Me.ty = New System.Windows.Forms.TextBox
Me.tz = New System.Windows.Forms.TextBox
Me.ok = New System.Windows.Forms.Button
Me.SuspendLayout()
'
'l1
'
Me.l1.BackColor = System.Drawing.Color.FromArgb(CType(192, Byte), CType(192, Byte), CType(255, Byte))
Me.l1.Location = New System.Drawing.Point(8, 8)
Me.l1.Name = "l1"
Me.l1.Size = New System.Drawing.Size(200, 16)
Me.l1.TabIndex = 0
'
'l2
'
Me.l2.BackColor = System.Drawing.Color.FromArgb(CType(192, Byte), CType(192, Byte), CType(255, Byte))
Me.l2.Location = New System.Drawing.Point(8, 32)
Me.l2.Name = "l2"
Me.l2.Size = New System.Drawing.Size(200, 16)
Me.l2.TabIndex = 1
'
'l3
'
Me.l3.BackColor = System.Drawing.Color.FromArgb(CType(192, Byte), CType(192, Byte), CType(255, Byte))
Me.l3.Location = New System.Drawing.Point(8, 56)
Me.l3.Name = "l3"
Me.l3.Size = New System.Drawing.Size(200, 16)
Me.l3.TabIndex = 2
'
'tx
'
Me.tx.Location = New System.Drawing.Point(8, 80)
Me.tx.Name = "tx"
Me.tx.Size = New System.Drawing.Size(200, 25)
Me.tx.TabIndex = 3
Me.tx.Text = "请输入x"
'
'ty
'
Me.ty.Location = New System.Drawing.Point(8, 104)
Me.ty.Name = "ty"
Me.ty.Size = New System.Drawing.Size(200, 25)
Me.ty.TabIndex = 4
Me.ty.Text = "请输入y"
'
'tz
'
Me.tz.Location = New System.Drawing.Point(8, 128)
Me.tz.Name = "tz"
Me.tz.Size = New System.Drawing.Size(200, 25)
Me.tz.TabIndex = 5
Me.tz.Text = "请输入z"
'
'ok
'
Me.ok.BackColor = System.Drawing.Color.FromArgb(CType(192, Byte), CType(192, Byte), CType(255, Byte))
Me.ok.Location = New System.Drawing.Point(8, 160)
Me.ok.Name = "ok"
Me.ok.Size = New System.Drawing.Size(200, 64)
Me.ok.TabIndex = 6
Me.ok.Text = "ok"
'
'ks
'
Me.AutoScaleBaseSize = New System.Drawing.Size(8, 18)
Me.BackColor = System.Drawing.Color.FromArgb(CType(128, Byte), CType(128, Byte), CType(255, Byte))
Me.ClientSize = New System.Drawing.Size(216, 232)
Me.Controls.Add(Me.ok)
Me.Controls.Add(Me.tz)
Me.Controls.Add(Me.ty)
Me.Controls.Add(Me.tx)
Me.Controls.Add(Me.l3)
Me.Controls.Add(Me.l2)
Me.Controls.Add(Me.l1)
Me.Name = "ks"
Me.Text = "考试"
Me.ResumeLayout(False)
End Sub
#End Region
Dim x, y, z, a, b, c, d, aa, bb, cc As Single
Dim tts, alls As Single
Private Sub ks_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
x = Int(1 + 30 * Rnd())
y = Int(1 + 20 * Rnd())
z = Int(1 + 25 * Rnd())
a = Int(2 + 4 * Rnd())
b = Int(1 + a * 2 * Rnd())
c = Int(1 + b * 2 * Rnd())
d = Int(1 + c * 3 * Rnd())
aa = x + y + z
bb = a * x + b * y + c * z
cc = b * x + c * y + d * z
l1.Text = "x+y+z=" Str(aa)
l2.Text = Str(a) "x+" Str(b) "y+" Str(c) "z=" Str(bb)
l3.Text = Str(b) "x+" Str(c) "y+" Str(d) "z=" Str(cc)
End Sub
Private Sub ok_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ok.Click
If Val(tx.Text) = x And Val(ty.Text) = y And Val(tz.Text) = z Then
tts = tts + 1
End If
alls = alls + 1
tx.Text = ""
ty.Text = ""
tz.Text = ""
x = Int(1 + (1000 ^ 0.5) * Rnd())
y = Int(1 + (10000 ^ 0.4) * Rnd())
z = Int(1 + (100000 ^ 0.3) * Rnd())
a = Int(2 + 4 * Rnd())
b = Int(1 + a * 2 * Rnd())
c = Int(1 + b * 2 * Rnd())
d = Int(1 + c * 3 * Rnd())
aa = x + y + z
bb = a * x + b * y + c * z
cc = b * x + c * y + d * z
l1.Text = "x+y+z=" Str(aa)
l2.Text = Str(a) "x+" Str(b) "y+" Str(c) "z=" Str(bb)
l3.Text = Str(b) "x+" Str(c) "y+" Str(d) "z=" Str(cc)
End Sub
Private Sub ks_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Click
Dim lv As Single
If Not (alls = 0) Then
lv = Int(tts * 100000 / alls) / 1000
MsgBox(Str(lv) "%", , "正确率")
tx.Visible = False
ty.Visible = False
tz.Visible = False
ok.Visible = False
l1.Visible = False
l2.Visible = False
l3.Visible = False
Else
MsgBox("答题!", , "答题!")
End If
End Sub
End Class
DataGridView 应该是可以的，你可以调协,DataGridView的背景为黑色。单元格的前景色为白色，，特殊列的单元格可以设置成你需要的颜色！
