Member '<membername1>' implicitly declares '<implicitmembername>', which conflicts with a member implicitly declared for member '<membername2>' in the base class '<baseclassname>'
Member '<membername1>' implicitly declares '<implicitmembername>', which conflicts with a member implicitly declared for member '<membername2>' in the base class '<baseclassname>'. So the member should be declared 'Shadows'.
A member of a derived class generates an implicit member with the same name as an implicit member of the base class. Because implicit members do not specify Overloads, the compiler assumes that this member Shadows the implicit base class member. Your code is more readable, and less prone to error, if you explicitly specify the Shadows keyword for this member.
The Visual Basic compiler creates implicit members corresponding to certain programming elements you declare. The following table summarizes these implicit, or synthetic, members.
Declared element |
Implicitly created members |
|---|---|
Enumeration |
value__ member |
Event |
add_<eventname> procedure remove_<eventname> procedure <eventname>Event field <eventname>EventHandler delegate |
Property |
get_<propertyname> procedure set_<propertyname> procedure |
My.Form member, My.WebService member, or member of a class marked with the MyGroupCollectionAttribute attribute |
m_<variablename>Static variable <variablename> property get_<variablename> procedure set_<variablename> procedure |
WithEvents variable |
_<variablename> variable <variablename> property get_<variablename> procedure set_<variablename> procedure |
Because of the risk of name conflicts, you should avoid naming any declared programming element using the same form as any one of these implicit members. For example, you should avoid any element name that starts with get_ or set_.
By default, this message is a warning. For more information about hiding warnings or treating warnings as errors, see Configuring Warnings in Visual Basic.
Error ID: BC40018
To correct this error
If you intend to hide, or shadow, the implicit base class member, include the Shadows keyword in the declaration of the derived class member.
If you do not intend to shadow the implicit base class member, change the name of the derived class member to avoid conflicts with names listed in the previous table.