Interface, which defines a generalized method that a value type or class implements to create a type-specific method for determining equality of instances.
Questions tagged [iequatable]
165 questions
0
votes
1 answer
Implementing GetHashCode on a value class
I have a class Money and I want to know what the best way of implementing GetHashCode on this value class would be give that $1 != €1. Having a weighted value against the currency * value is not going to work.
public class Money :…
user1054637
- 695
- 11
- 28
0
votes
1 answer
Distinct is not working with IEquatable
I have a class Bar that looks like this:
public class Bar : IEquatable
{
public string Stringbar1{ get; set; }
public string Stringbar2{ get; set; }
public string Stringbar3{ get; set; }
public string Stringbar4{ get; set; }
…
Mohamad Hammash
- 237
- 1
- 8
0
votes
1 answer
I am having a CA1067 violation on IEquatable(Of T) and can't solve it
I have been trying for hours and a lot recode but can get rid of the CA1067 violation.
Using:
Visual Studio 2022, .Net v6.0.13, VB.NET
I will appreciate any help to solve the issue and insights in what I am doing wrong.
So the case is the…
Paulo Borges
- 11
- 3
0
votes
2 answers
How should I implement equality checking for classes that have objects of other classes as member?
I have a Student class that has an object of class Name.
At this point, the equality check of the Student class returns false, and I don't know why.
public class Student : IEquatable
{
public Name Name { get; }
public Student(Name…
isakgo_
- 750
- 4
- 15
0
votes
1 answer
Possible null reference in IEquatable implementation
I'm trying to find out how to remove that possible null reference in the IEquatable implementation below.
return other != null && _guid == other._guid; Possible null reference argument for parameter 'left' in 'bool SubscriptionToken.operator…
nop
- 4,711
- 6
- 32
- 93
0
votes
1 answer
How to emit empty state more than one time when I am using equatable
I am trying to emit a state more than one time because I am validating a form no need to add any thing on the constructor and make copyWith func etc..
so could you help me with other solutions?
class PersonUnValid extends PersonState {
const…
Mo_
- 45
- 9
0
votes
0 answers
How to implement priority queue using Custom interfaces as attached in both the images?
using System;
using System.Collections.Generic;
using System.Linq;
namespace MyQueue
{
public class PriorityQueue where T : IEquatable
{
private IDictionary> elements;
public PriorityQueue()
…
Papu Gomez
- 1
- 1
0
votes
2 answers
OnDrawGizmos not drawing all Grid positions in generated Grid
I have a Grid I am generating to perform path finding. When storing all the walkable Nodes I perform a check if the Obstacles HashSet has an obstacle placed there. I am passing a Node to the IsCellOccupied(Node node) function but I think .Contains…
Krellex
- 613
- 2
- 7
- 20
0
votes
1 answer
How to Implement IEquatable in a class that
I need to have instances of a DispenseFile class that inherits from DispenseEntity that implements IDispenseEntity use a custom equality for purposes of comparing elements in List.
My interface is:
public interface IDispenseEntity :…
Eric Snyder
- 1,816
- 3
- 22
- 46
0
votes
2 answers
how to compare values of two reference type nested and dynamic objects
I have two objects with the same type and values
how can I compare them by value?
exp:
class Person
{
public string Name { get; set; }
public DateTime BirthDate { get; set; }
public Address Address { get; set; }
…
MM Hamzeh
- 25
- 7
0
votes
2 answers
Comparing two collections of same object in C# and Finding New, Changed or Deleted Records
I have got two collections of same object
public class MyClass
{
public int Id {get;set;}
public string Name {get;set;}
public int Age{get;set;}
public string SSN{get;set;}
}
I have got two Collections (colA and colB) based on MyClass…
InTheWorldOfCodingApplications
- 2,526
- 6
- 46
- 87
0
votes
1 answer
IEquatable Documentation is confusing
Hi I am trying to add in IEquatable to my program and I have no clue if I need to add a unique id basicly and a hashcode? They are using the shd number as a unique id in the IEquatable but they give the value to it in the constructor and I asked on…
user13319447
0
votes
0 answers
IEquatable documentation?
I have looked through IEquatables documentation from microsoft and have some stuff i do not understand with the implementation of it? well not something what i do not understand is this part
public Person(string lastName, string ssn)
{
…
user13319447
0
votes
1 answer
How to enforce adding new public properties to the Equals method for IEquatable classes
I have classes that contain other child classes, so I have implemented IEquatable to perform a custom Equals method recursively down the chain. That is working fine, but I am thinking if other developers need to add new public properties to these…
Djangoboots
- 11
- 4
0
votes
1 answer
How to Implement IEquatable with Different Equality Checks
I have a MyCustomSet class with IEquatable implemented as shown below.
This works fantastic when I want to check equality for all three sets (SetA*, SetB*, and SetC*). But requirements dictate that I also need the ability to check equality for only…
Ari Pub
- 11
- 4