Question

如何在 vb.net 为动态生成的控件添加事件并传递数据

我的代码是这样的：
动态生成的控件：
Private Sub UserControl1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
Dim myPicture = New System.Windows.Forms.PictureBox()
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
End Sub

处理事件的过程：
Private Sub mypic_Click() 'ByVal id As String
Dim bookInfo As New BookInfo
bookInfo.Show()
Me.Parent.Enabled = False
End Sub

我的问题是要把myPicture.Name传到处理事件的过程mypic_Click()中，我应该怎么去做啊？请高手，老鸟们赐教！

Answer 1

'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。