重庆分公司,新征程启航

为企业提供网站建设、域名注册、服务器等服务

vb.net线程传参,C#线程传递参数的方式

vb.net 线程 如何动态 address of 过程,即 "过程" 是可以用户动态传送的。

过程名是不可能作为参数使用的,想必你需要调用的过程是有限的,那么可以用一个变量来确定:

成都创新互联坚持“要么做到,要么别承诺”的工作理念,服务领域包括:做网站、成都网站建设、企业官网、英文网站、手机端网站、网站推广等服务,满足客户于互联网时代的呈贡网站设计、移动媒体设计的需求,帮助企业找到有效的互联网解决方案。努力成为您成熟可靠的网络建设合作伙伴!

sub 过程名(p as integer)

Dim i As Threading.Thread

select case p

case 1

i = New Threading.Thread(AddressOf 过程1)

case 2

i = New Threading.Thread(AddressOf 过程2)

.........................

..........................

end select

i.start()

end sub

VB.NET线程内调用带参数的方法异常

报错信息是什么?截图一下。

---------补充----------------

你这报错与线程应该关系不大吧,是调用COM不熟悉造成的,在项目属性里面有些相关配置你研究研究。

vb.net 如何传递类参数

线程结束后利用委托生成事件返回,线程应用包括传入和传出参数。

Public Delegate Sub ThreadCallback(value As ThreadResult)

Public Class Form1

Private WithEvents _th_1 As Thread_1

Protected Overrides Sub OnLoad(e As System.EventArgs)

Dim value As ThreadObject

value.Index = 1

Me._th_1 = New Thread_1(Me)

Me._th_1.Run(value)

MyBase.OnLoad(e)

End Sub

Private Sub Thread_1_End(sender As Object, e As ThreadEventArgs) Handles _th_1.ThreadEnd

Me.TextBox1.Text = e.Result.Text

End Sub

End Class

Public Class Thread_1

Public Event ThreadEnd(sender As Object, e As ThreadEventArgs)

Private _control As Control

Sub New(control As Control)

Me._control = control

End Sub

Public Sub Run(value As Object)

Dim th As New Threading.Thread(AddressOf ThreadProc)

th.Start(value)

End Sub

Private Sub ThreadProc(obj As Object)

Dim value As ThreadObject = CType(obj, ThreadObject)

Dim result As ThreadResult = Nothing

If value.Index = 1 Then result.Text = "测试"

Dim callback As New ThreadCallback(AddressOf ThreadInvoke)

_control.Invoke(callback, result)

End Sub

Private Sub ThreadInvoke(value As ThreadResult)

RaiseEvent ThreadEnd(Me, New ThreadEventArgs(value))

End Sub

End Class

Public Structure ThreadObject

Public Index As Integer

'Public Rect As Rectangle

End Structure

Public Structure ThreadResult

Public Text As String

'Public Rect As Rectangle

End Structure

Public Class ThreadEventArgs

Inherits System.EventArgs

Private _result As ThreadResult

Public ReadOnly Property Result As ThreadResult

Get

Return _result

End Get

End Property

Sub New(value As ThreadResult)

Me._result = value

End Sub

End Class


网页标题:vb.net线程传参,C#线程传递参数的方式
分享网址:http://cqcxhl.com/article/hsdihd.html

其他资讯

在线咨询
服务热线
服务热线:028-86922220
TOP