新手問題 大家幫下忙
代碼如下：
Imports System.Threading
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim th1, th2 As Thread
Dim ym As AClass
ym = New AClass
th1 = New Thread(New ThreadStart(AddressOf ym.Method1))
th2 = New Thread(New ThreadStart(AddressOf ym.Method2))
th1.Start()
th2.Start()
End Sub
End Class
Public Class AClass
Public Sub Method1()
Dim i As Integer
For i = 1 To 100
listbox1.items.add( "這是線程一： " & i)
Next i
End Sub
Public Sub Method2()
Dim ii As Integer
For ii = 1 To 100
listbox1.items.add( "這是線程二： " & ii)
Next ii
End Sub
End Class
編譯不了說提示：Name "listbox1 " is not declared
大俠們，要如何才行呀
[解决办法]
你的listbox1在UI 线程中，不能这样使用。
Public Class AClass
Public Sub Method1()
Dim i As Integer
For i = 1 To 100
listbox1.items.add( "這是線程一： " & i))////？？？？问题在这里
Next i
End Sub
Public Sub Method2()
Dim ii As Integer
For ii = 1 To 100
listbox1.items.add( "這是線程二： " & ii)////？？？？问题在这里
Next ii
End Sub
可以采用将listbox1.items.add用另外一个方法实现，而在哪个地方采用me.invoke(方法名)．
你可以试一试．
[解决办法]
也就是将后台线程移交给ＵＩ线程．
