MyBase Keyword |
MyBase
Provides a reference to the base class from within a derived class. If you want to call a member of the base class from within a derived class, you can use the syntax:
MyBase. MemberName
where MemberName is the name of the member. This will resolve any ambiguity if the derived class also has a member of the same name .
MyBase will call through the chain of inherited classes until it finds a callable implementation. For example, in the code:
Public Class CTestClass ... End Class Public Class CTestClass2 Inherits CTestClass Public Function ShowType( ) As Type Return Mybase.GetType End Function End Class
the call to ShowType is eventually resolved as a call to Object.GetType, since all classes are ultimately derived from the Object class.
MyBase cannot be used to call Private class members .
MyBase cannot be used to call base class members marked as MustOverride .
MyBase is commonly used to call back into the overridden member from the member that overrides it in the derived class.
The MyBase keyword can be used to call the constructor of the base class to instantiate a member of that class, as in:
MyBase.New(...)
The MyBase keyword is new to VB.NET.