[原帖地址]http://topic.csdn.net/u/20111019/17/ac098c48-ed25-4e1f-acd0-ec192ca44eac.html
'原先错误的写法! ------------------------- Private Sub Button1_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Button1.Click Dim MyThread As New System.Threading.Thread(AddressOf sum) MyThread.Start() End Sub Private Sub sum() Dim i,sum As Integer For i = 0 To 100 sum += i Next Me.Text = CStr(sum) '在这里就会报错,教我"如何跨线程调用windows窗体控件",表示没看懂 End Sub ------------------------------------- '正确的线程委托写法 ------------------------------------- Private Delegate Sub myDelegate(ByVal myString As String) '自定义一个委托 Private Sub SetwindowText(ByVal myString As String) '与委托相同签名的函数或过程 Me.Text = myString End Sub Private Sub Button1_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Button1.Click Dim MyThread As New System.Threading.Thread(AddressOf sum) MyThread.Start() End Sub Private Sub sum() Dim i,sum As Integer For i = 0 To 100 sum += i Next Me.Invoke(New myDelegate(AddressOf SetwindowText),sum.ToString) '委托的调用 End Sub
原文地址:https://www.jb51.cc/vb/260759.html
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。