[2005] Inheritance Question

[NPassero]

I am inheriting properties from Developer Express (www.devexpress.com) controls - And they're are two types of controls that have the same functionality but they are on two different levels -

What I am talking about is a DateEdit, and a RepositoryItemDateEdit - The DateEdit.Properties has all of the features of the RepositoryItemDateEdit - but the RepositoryItemDateEdit does not have the DateEdit's features -

Where I need help is that in a GridControl, you can only use a RepositoryItemDateEdit as an editor - and not the DateEdit control. Is there a way to have my object inherit one or the other? and just check for the type - Or do I have to do dual both of them, and make sure they match -

I'm trying to get the best way to complete this task - any help would be great - Thanks

[DeanMc]

Why not inherent both of them? Then you have one "super" control.

[jmcilhinney]

.NET only supports single inheritance. When you define a class you can choose one base class and one base class only.

[NPassero]

Got any suggestions so I would not have to dual both classes when making changes ?

Would it make sense to have the two separate classes (controls) and then have them bring in functions / subroutines from another mutual class - which has the shared functionality ?

[DeanMc]

@jmcilhinney: Yes that is true but can the user defined class not be used as a base class to further inherit more features? forgive me if this is wrong but i thought this is possible.

[jmcilhinney]

You basically have two choices as far as I can see:

1. Inherit both classes separately.
2. Inherit one class and then add the extra functionality of the other yourself.

[MaximilianMayrhofer]

If you want C to inherit A and B in .Net, then you make B inherit A, and C inherit B.