Question

Please Consider this scenario:

We have a base class called clsMain :

class clsMain
{
    int P1{set; get;}
    int P2{set; get;}
    int P3{set; get;}
    string P4{set; get;}
    string P5{set; get;}
}

and I want to have these 2 obejcts from clsMain :

object1 psudo code:
{
    int P1{set; get;}
    int P2{set; get;}
    int P3{set; get;}    
}

and :

object2 psudo code:
{
    int P3{set; get;}
    string P4{set; get;}
    string P5{set; get;}
}

is it possible in c#? should I use specific type of class(abstract,…)?

thanks a lot

Answer 1

Inheritance is possible in C# as a first-class concept:

public class BaseClass
{
    public virtual string Name { get { return "Adam"; } }
}

public class ChildClass : BaseClass
{
    public override string Name { get { return "Foo"; } }
}

To override something, you need to make it virtual and needs to have accessibility of anything other than private.

In your instance you could possibly do something like:

class clsMain
{
    public virtual int P1{set; get;}
    public virtual int P2{set; get;}
    public virtual int P3{set; get;}
    public virtual string P4{set; get;}
    public virtual string P5{set; get;}
}

class object1 : clsMain
{
    public override int P1{set; get;}
    public override int P2{set; get;}
    public override int P3{set; get;}    
}

class object2 : clsMain
{
    public override int P3{set; get;}
    public override string P4{set; get;}
    public override string P5{set; get;}
}

Though if I’m being honest, your question isn’t very clear. Note, however, that C# does not support multiple inheritance of classes.

Sounds like you want to filter out the properties. You cannot stop inherited members from being accessed (well, there is the new modifier, but this is sketchy at best). Instead you can use interfaces:

interface Iobject1
{
    int P1 { set; get; }
    int P2 { set; get; }
    int P3 { set; get; } 
}

interface Iobject2
{
    int P3{set; get;}
    string P4{set; get;}
    string P5{set; get;}
}

class clsMain : Iobject1, Iobject2
{
    public int P1{set; get;}
    public int P2{set; get;}
    public int P3{set; get;}
    public string P4{set; get;}
    public string P5{set; get;}
}