User Cotrol Inheratance

[Erik Wiggins]

Okay I'm just wondering if this is even possible. I tried it and get an error but maybe I'm tring the wrong way. Can a usercontrol inherate an application defined class ie.. could you inhearate a classic rect class into a user control to add the hight and width properties to the control without haveing to do all the coding all over again? Currently I just declair a private instance of the class within the control and then encapsalate. It would be nice if I could just inherit all the functionality of my classes into controls designed to implament the classes.

[GremlinSA]

According to vbdotnetheaven

Structs & Inheritance.

There is no inheritance for structs as there is for classes. A struct can't inherit from another struct or class and it can't be the base class for a class. But remember that in VB.NET all types are directly or indirectly inheriting from the super base class object and hence the structure also. Since structs doesn't support inheritance, we can't use the keywords virtual, override, new, abstract etc with a struct methods. VB.NET struct types are never abstract and are always implicitly sealed. The abstract or sealed modifiers are not permitted in a struct declaration.

Since inheritance is not supported for structs, the declared accessibility of a struct member can’t be protected or protected internal. Since all struct types are implicitly inherit from object class, it is possible to override the methods of the object class inside a struct by using the keyword override. Remember that this is special case in VB.NET structs.

So if you need to muti-use a Size Struct, build it as a class and then you can inherit it multiple times...