如何将MethodName作为VBNET中过程的参数传递 [英] How to Pass MethodName as Parameter of a Procedure in VBNET
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问题描述
我想创建一个Procedure,它的参数也是一个过程。可能吗?
我创建了一些程序作为参数使用:
I want to create a Procedure that its parameter is also a procedure. Is it possible?
I created some procedures to be used as parameters below:
Private Sub Jump(xStr as string)
Msgbox xStr & " is jumping."
End Sub
Private Sub Run(xStr as string)
Msgbox xStr & " is jumping."
End Sub
此过程应该调用上述过程:
this procedure should call the procedure above:
Private Sub ExecuteProcedure(?, StringParameter) '- i do not know what to put in there
? ' - name of the procedure with parameter
End Sub
用法:
ExecuteProcedure(Jump, "StringName")
ExecuteProcedure(Run, "StringName")
推荐答案
我相信以下代码是您需要的示例。
I believe the following code is an example for what you need.
Public Delegate Sub TestDelegate(ByVal result As TestResult)
Private Sub RunTest(ByVal testFunction As TestDelegate)
Dim result As New TestResult
result.startTime = DateTime.Now
testFunction(result)
result.endTime = DateTime.Now
End Sub
Private Sub MenuItemStartTests_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemStartTests.Click
Debug.WriteLine("Starting Tests...")
Debug.WriteLine("")
'==================================
' Add Calls to Test Modules Here
RunTest(AddressOf Test1)
RunTest(AddressOf Test2)
'==================================
Debug.WriteLine("")
Debug.WriteLine("Tests Completed")
End Sub
整篇文章可以在 http://dotnetref.blogspot.com/2007/07/passing-function-by-reference-in-vbnet.html
希望这有助于。
这篇关于如何将MethodName作为VBNET中过程的参数传递的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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