vb.net 将列表作为参数传递给方法
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Passing a list into a method as a parameter
提问by bbesase
I have 2 functions, one is:
我有两个功能，一个是：
Public Sub PopulateValidKeystrokeList()
ValidKeystrokeList.Add(Keys.A)
ValidKeystrokeList.Add(Keys.B)
ValidKeystrokeList.Add(Keys.C)
ValidKeystrokeList.Add(Keys.D)
ValidKeystrokeList.Add(Keys.E)
ValidKeystrokeList.Add(Keys.F)
ValidKeystrokeList.Add(Keys.G)
ValidKeystrokeList.Add(Keys.H)
ValidKeystrokeList.Add(Keys.I)
ValidKeystrokeList.Add(Keys.J)
'backPopulateDictionary()
End Sub
And the other is this:
另一个是这样的：
Public Function backPopulateDictionary(ByRef validkeylist As List(Of String))
For i As Integer = 0 To ValidKeystrokeList.Count - 1
keystrokeDictionary.Add(ValidKeystrokeList.Item(i), i)
Next
Return keystrokeDictionary
End Function
I need to pass the whole list into backPopulateDictionary()but I'm not sure how to pass a whole list as a parameter, since everything I have tried so far just errors out and doesn't work.
我需要将整个列表传递给，backPopulateDictionary()但我不确定如何将整个列表作为参数传递，因为到目前为止我尝试过的所有内容都出错并且不起作用。
回答by rwisch45
Public Function backPopulateDictionary(ByVal validkeylist As List(Of String))
For i As Integer = 0 To validkeylist.Count - 1
keystrokeDictionary.Add(validkeylist.Item(i), i)
Next
Return keystrokeDictionary
End Function
And call it with backPopulateDictionary(ValidKeystrokeList)
并调用它 backPopulateDictionary(ValidKeystrokeList)
validkeylistis the parameter, so when you are adding to your keystrokeDictionary, you need to use the parameter name - not the name of the actual list.
validkeylist是参数，因此当您添加到您的 时keystrokeDictionary，您需要使用参数名称 - 而不是实际列表的名称。
