AddressOf嵌套问题

Question

有一下几个个过程

Private Sub DOCmd(Mycmd)
   Dosomething
   System.Threading.ThreadPool.QueueUserWorkItem(New System.Threading.WaitCallback(AddressOf Mycmd), State)
End Sub

Private Sub Cmd1(byval stateas object)
   DOsomething1(state)
End Sub

Private Sub Cmd2(byval stateas object)
   DOsomething2(state)
End Sub

Private Sub Cmd3(byval stateas object)
   DOsomething3(state)
End Sub

.....
.....

现在想在主过程中调用DOCmd,

比如DoCmd(Cmd1),DoCmd(Cmd2),DOCmd(Cmd3)等等,现在的DoCmd写法(没有参数签名)是错误的,并且里面AddressOf Mycmd也不对

但不知道Docmd该怎么写?

Answer 1

定义一个delegate,形式和你的函数一致，

Mycmd 是那个delegate类型

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http://feiyun0112.cnblogs.com/

Answer 2

Delegate Sub DelMySub(byval state as object)

Private Sub DOCmd(byval Mycmd as DelMySub)
   Dosomething
   System.Threading.ThreadPool.QueueUserWorkItem(New System.Threading.WaitCallback(AddressOf Mycmd), State)
End Sub

Private Sub Cmd1(byval state as object)
   DOsomething1(state)
End Sub

Private Sub Cmd2(byval state as object)
   DOsomething2(state)
End Sub

Private Sub Cmd3(byval state as object)
   DOsomething3(state)
End Sub

.....
.....

是这样吗?但是在New System.Threading.WaitCallback(AddressOf Mycmd) 出错,报 “AddressOf”操作数必须是某个方法的名称(不带圆括号)。 

有点晕,呵呵

Answer 3

Private Sub DOCmd(ByVal Mycmd As WaitCallback)

        System.Threading.ThreadPool.QueueUserWorkItem(Mycmd, state)
    End Sub

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http://feiyun0112.cnblogs.com/

Answer 4

可以了,万分感谢~