在 vb.net 中，如何从私有子节点声明公共变量 [英] in vb.net how do I declare a public variable from a private sub

问题描述

我正在从私有子节点动态创建标签，并且我希望能够在用户单击它们时执行某些操作.但是，我不能使用Dim withEvents blah ..."，因为它说 withEvents 不能用于局部变量，但我也不能在我的 Private Sub 中使用Public withEvents blah".我该如何实现?

I am creating Labels dynamically from a private sub, and I want to be able to do something when the user clicks on them. However, I can't use "Dim withEvents blah..." because it says withEvents can't be used on a local variable but I also can't use "Public withEvents blah" from within my Private Sub. How do I accomplish this?

谢谢.

推荐答案

创建动态控件时，可以为其添加处理程序

When you create dynamic control, you can add a handler for it

Dim mylbl As New Label
mylbl.Name = "button1"
mylbl.Text = "hi"
Me.Controls.Add(mylbl)

AddHandler lbl.Click, AddressOf AllLabels_Click

这是您的处理程序子

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

    Dim lbl As Label = CType(sender, Label)

    MsgBox(lbl.Text)

End Sub

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