using IEquatable

Question

User527076549 posted

 public class Person : IEquatable<Person>
    {
        public string Name { get; set; }
        public int Id { get; set; }
       
        public bool Equals(Person other)
        {
            if(this.Id==other.Id)
            {
                return true;
            }

            else if(this.Name.Equals(other.Name))
            {
                return true;
            }
            else if(Object.Equals(this.Name,other.Name))
            {
                return true;
            }

            return false;
        }
    }

which one is correct Objecct.Equals() or this.Name.Equals() both give same answers

Thanks you.really appreciate your help 

Answer 1

User-719153870 posted

Hi amithashenoy,

this.Name.Equals(other.Name) is String.Equals Method and Object.Equals(this.Name,other.Name) is Object.Equals Method, they are actually the same thing since string inherits from object.

Popular speaking, this.Name.Equals(other.Name) is like saying "whether A equal to B" while Object.Equals(this.Name,other.Name) is like saying "whether A and B are equal".

amithashenoy

which one is correct Objecct.Equals() or this.Name.Equals() both give same answers

In general, both of them are correct.

Best Regard,

Yang Shen