CODEWITHSUNDEEP
c#
Moiz
Moiz

Reputation: 2439

How to Access method in Parent from Child Class

I have one method which is in child class and I want to fetch that in Parent with the help of this.

public class Class1
{
    private class Class2
    {
        public void Add(int a, int b) // Method in Class 2
        {
            this.Add(a, b);
        }
    }

    public Class1() // constructor of Class 1
    { 
        // Get this Add method by This.Add ??
        // Not able to fetch the Add method here.
    }
}

Upvotes: 2

Views: 491

Answers (4)

Kevin M
Kevin M

Reputation: 5506

You need to create instance for Class2 

 public class Class1
 {
   private class Class2
    {
      public Class2() // constructor of Class2
      { 
      }

      public void Add(int a, int b) // Method in Class2
      {
        this.Add(a, b);
      }
    }

public Class1() // constructor of Class1
{ 
    Class2 cs2 = new Class2();
    cs2.Add(4,5);
}

}

Upvotes: 0

sikender
sikender

Reputation: 5921

public class Class1
{
    private class Class2
    {
        public void Add(int a, int b) // Method in Class 2
        {
            this.Add(a, b);
        }
    }

    public Class1() // constructor of Class 1
    {
        Class2 newclass2 = new Class2();
        newclass2.Add(1, 2);
        // Get this Add method by This.Add ??
        // Not able to fetch the Add method here.
    }
}

Upvotes: 0

No Idea For Name
No Idea For Name

Reputation: 11597

you have declared the method but it is in class2. that means you need to create an instance of class2 in order to use the method

public class Class1
{
    private class Class2
    {
        public void Add(int a, int b) // Method in Class 2
        {
            this.Add(a, b);
        }
    }

    public Class1() // constructor of Class 1
    { 
        class2 cs = new class2();
        cs.Add(4,5);
    }
}

Upvotes: 2

Adriaan Stander
Adriaan Stander

Reputation: 166566

You would either have to create an instance of Class2 in the constructor of Class1 and use an instance method, or change the method Add to static in Class2

Static version

Something like

public class Class1
{
    private class Class2
    {
        public static void Add(int a, int b)
        {

        }
    }

    public Class1()
    {
        Class2.Add(1,2);
    }
}

Instance version

Something like

public class Class1
{
    private class Class2
    {
        public void Add(int a, int b)
        {

        }
    }

    public Class1()
    {
        new Class2().Add(1,2);
    }
}

Maybe have a look at static (C# Reference)

Upvotes: 1

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