VB.Net 中 WithEvents、AddHandler
发布时间:2020-12-16 22:37:27 所属栏目:大数据 来源:网络整理
导读:Public Class Form1 Dim WithEvents cls1 As New ClassTest() 'WithEvents方式 Dim cls2 As New ClassTest() 'AddHandler方式 Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load cls1.Test() 'WithEv
Public Class Form1 Dim WithEvents cls1 As New ClassTest() 'WithEvents方式 Dim cls2 As New ClassTest() 'AddHandler方式 Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load cls1.Test() 'WithEvents方式 AddHandler cls2.GetValue,AddressOf cls2GetValue 'AddHandler方式 cls2.Test() Me.Close() End Sub Private Sub cls1_GetVale(ByVal str As String) Handles cls1.GetValue 'WithEvents方式 MsgBox("cls1 " & str) End Sub Private Sub cls2GetValue(ByVal str As String) 'AddHandler方式 MsgBox("cls2 " & str) End Sub End Class Public Class ClassTest Public Event GetValue(ByVal str As String) Public Sub Test() RaiseEvent GetValue("事件例子") End Sub End Class (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |