C sharp code to compare 2 complex objects of same type

Today I stumbled upon this code. After adding the code, you can simply compare almost 2 simple / complex objects of same type.

view plainprint?

1. int x = 5;  
2. int y = 5;  
3. XyzClass a = new XyzClass();  
4. XyzClass b = new XyzClass();  
5.   
6. // Both of these should return true  
7. bool equals = x.CompareEquals(y);  
8. equals = a.CompareEquals(b);  
9.   
10. y=10;  
11. b.Date = DateTime.Now;  
12. b.Str="tester";  
13.   
14. // both of these should return false  
15. equals = x.CompareEquals(y);  
16. // this one should return false after finding the first non-equal property  
17. equals = a.CompareEquals(b);  

int x = 5;
int y = 5;
XyzClass a = new XyzClass();
XyzClass b = new XyzClass();

// Both of these should return true
bool equals = x.CompareEquals(y);
equals = a.CompareEquals(b);

y=10;
b.Date = DateTime.Now;
b.Str="tester";

// both of these should return false
equals = x.CompareEquals(y);
// this one should return false after finding the first non-equal property
equals = a.CompareEquals(b);

However, I personally like the code in a comment, which is shorter than the original code. So I posted it here, as a quick reminder for you and me whenever we need that

view plainprint?

1. using System.IO;  
2. using System;  
3. using System.Reflection;  
4.   
5. class Program  
6. {  
7.     static void Main()  
8.     {  
9.         Console.WriteLine("Hello, World1!");  
10.         int x = 5;  
11.         int y = 5;   
12.         Console.WriteLine(x.CompareEquals(y));  
13.     }  
14.   
15. }  
16.   
17. internal static class CompareEqualsModule  
18. {  
19.   
20.     public static bool CompareEquals<T>(this T objectFromCompare, T objectToCompare)  
21.     {  
22.   
23.         if (objectFromCompare == null && objectToCompare == null) return true;  
24.         Type fromType = objectFromCompare.GetType();  
25.         if (fromType.IsPrimitive) return objectFromCompare.Equals(objectToCompare);  
26.         if (fromType.FullName.Contains("System.String")) return ((objectFromCompare as string) == (objectToCompare as string));  
27.         if (fromType.FullName.Contains("DateTime")) return DateTime.Parse(objectFromCompare.ToString()).Ticks == DateTime.Parse(objectToCompare.ToString()).Ticks;  
28.   
29.         foreach (PropertyInfo prop in typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance))  
30.         {  
31.             Type type = objectFromCompare.GetType().GetProperty(prop.Name).GetValue(objectToCompare, null).GetType();  
32.             object dataFromCompare = objectFromCompare.GetType().GetProperty(prop.Name).GetValue(objectFromCompare, null);  
33.             object dataToCompare = objectToCompare.GetType().GetProperty(prop.Name).GetValue(objectToCompare, null);  
34.             if (CompareEquals(Convert.ChangeType(dataFromCompare, type), Convert.ChangeType(dataToCompare, type)) == false) return false;  
35.         }  
36.   
37.         return true;  
38.     }  
39. }  

using System.IO;
using System;
using System.Reflection;

class Program
{
    static void Main()
    {
        Console.WriteLine("Hello, World1!");
        int x = 5;
        int y = 5; 
        Console.WriteLine(x.CompareEquals(y));
    }

}

internal static class CompareEqualsModule
{

    public static bool CompareEquals<T>(this T objectFromCompare, T objectToCompare)
    {

        if (objectFromCompare == null && objectToCompare == null) return true;
        Type fromType = objectFromCompare.GetType();
        if (fromType.IsPrimitive) return objectFromCompare.Equals(objectToCompare);
        if (fromType.FullName.Contains("System.String")) return ((objectFromCompare as string) == (objectToCompare as string));
        if (fromType.FullName.Contains("DateTime")) return DateTime.Parse(objectFromCompare.ToString()).Ticks == DateTime.Parse(objectToCompare.ToString()).Ticks;

        foreach (PropertyInfo prop in typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance))
        {
            Type type = objectFromCompare.GetType().GetProperty(prop.Name).GetValue(objectToCompare, null).GetType();
            object dataFromCompare = objectFromCompare.GetType().GetProperty(prop.Name).GetValue(objectFromCompare, null);
            object dataToCompare = objectToCompare.GetType().GetProperty(prop.Name).GetValue(objectToCompare, null);
            if (CompareEquals(Convert.ChangeType(dataFromCompare, type), Convert.ChangeType(dataToCompare, type)) == false) return false;
        }

        return true;
    }
}