Question

我有一个类ClassA，我在其中创建另一个类ClassB的对象（classB_obj）。如何使用此classB_obj访问/设置ClassB内的结构的值？我不熟悉vb.net中的语法。我想要做的就是这个

Public ClassA
         Public Sub SomeSub 
              Dim ClassB_obj As New ClassB()   

              Dim classB_struct As ClassB.sampleStruct 'The error is **Type ClassB.sampleStruct not defined**
          End Sub
End ClassA

Public ClassB

   Private Structure Struct
       Dim xy As String
       Dim yz As String
   End Structure

   Dim sampleStruct As Struct

   'Member functions here
 End ClassB

错误是类型ClassB.sampleStruct未定义

谁能告诉我哪里出错了？这里有新手到vb.net并且不熟悉语法。非常感谢

Answer 1

您需要将允许在课堂外访问的Class B成员声明为Public

Public ClassB

   Public Structure Struct
       Dim xy As String
       Dim yz As String
   End Structure

   'Public sampleStruct As Struct

End ClassB

Public ClassA
   Public Sub SomeSub 
        'Dim ClassB_obj As New ClassB()   
        Dim classb_struct As ClassB.Struct
   End Sub
End ClassA

Answer 2

你的结构是私有的，你试过把它公之于众吗？

访问另一个类的对象的结构

2 个答案: