Overriding & Shadow Myth

Here the efforts is to make understand the myht behind Overiding & Shadowing –

 

class MajorBase

    {

        public virtual string getMessage()

        {

            return "Major Base";

        }

    }

 

class MinorBase : MajorBase

    {

        public string getMessage()

        {

            return "Minor Base";

        }      

    }

 

class Class1 : MinorBase

    {

    }

----------------------------------------------------------------------------------------

Test:-- Without Overriding / With Shadowing – Depends on the Type of Variable

 

class MinorBase : MajorBase

    {

        public new string getMessage()

        {

            return "Minor Base";

        }      

    }

 

MajorBase major = new Class1();

MessageBox.Show(major.getMessage());   à Major

 

MinorBase minor = new Class1();

MessageBox.Show(minor.getMessage());   à Minor

 

MajorBase major = new MajorBase();

MessageBox.Show(major.getMessage());   à Major

 

major = new MinorBase();

MessageBox.Show(major.getMessage());   à Major

----------------------------------------------------------------------------------------

 

Test:-- With Overriding – Depends on the Type of Object

 

class MinorBase : MajorBase

    {

        public overide string getMessage()

        {

            return "Minor Base";

        }      

    }

 

MajorBase major = new Class1();

MessageBox.Show(major.getMessage());   à Minor

 

MinorBase minor = new Class1();

MessageBox.Show(minor.getMessage());   à Minor

 

MajorBase major = new MajorBase();

MessageBox.Show(major.getMessage());   à Major

 

major = new MinorBase();

MessageBox.Show(major.getMessage());   à Minor

----------------------------------------------------------------------------------------

 

 

Thanks & Regards,

Arun Manglick

SMTS || Microsoft Technology Practice || Bridgestone - Tyre Link || Persistent Systems || 3023-6258

 

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