如何在vb.net里面动态添加控件

Private WithEvents NewTextBox As TextBox

'通过使用WithEvents关键字声明一个对象变量为新的命令按钮

Private Sub Command1_Click()

If NewTextBox Is Nothing Then

Set NewTextBox = Controls.Add("VB.TextBox", "cmdNew", Form1)

NewTextBox.Move 200, 200

NewTextBox.Width = Form1.Width - 450

NewTextBox.Height = Form1.Height - 1400

NewTextBox.Visible = True

End If

End Sub

Private Sub Command2_Click()

If NewTextBox Is Nothing Then

Exit Sub

Else

Controls.Remove NewTextBox

Set NewTextBox = Nothing

End If

End Sub

'把图片的声明放在外面，类里面过程外面，而且要用As，不然等会儿没法用

Dim myPicture As New System.Windows.Forms.PictureBox()

'动态生成的控件，加一行

Private Sub UserControl1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load

Me.Panel3.Controls.Add(myPicture)

myPicture.Size =New System.Drawing.Size(115, 160)

myPicture.TabStop =False

myPicture.Name ="p"

myPicture.Cursor = Cursors.Hand

AddHandler myPicture.Click, AddressOf mypic_Click '添加事件

AddHandler returnid, AddressOf idReturned '绑定事件和过程

End Sub

'再来个事件，放在声明的地方，就是类里面、过程外面

Private Event returnid(ByVal id As String) '这个事件可以传递值哦~

'普通的单击事件

Private Sub mypic_Click()

RaiseEvent returnid(myPicture.Name)

End Sub

'会传值的事件过程

Private Sub idReturned(ByVal id As String)

Dim bookInfo As New BookInfo

bookInfo.Show()

Me.Parent.Enabled = False

'用id变量做点什么吧

End Sub

如果要改事件的签名（参数一类的）的话，得重写控件。你可以这样自己弄一个事件。

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