What you have been waiting for. Perform a deep compare of any two .NET objects using reflection. Shows the differences between the two objects.

• Compatible with .NET Framework 4.0 and higher.
• .NET Standard 1.3 Build Compatible with .NET Core 1.0, Mono 4.6, Xamarin.iOS 10.0, Xamarin.Mac 3.0, Xamarin.Android 7.0, Universal Windows Platform 10.0
• .NET Standard 2.0 Build Compatible with .NET Core 2.0, Mono 5.4, Xamarin.iOS 10.14, Xamarin.Mac 3.8, Xamarin.Android 8.0, Universal Windows Platform 10.0.16299

http://www.nuget.org/packages/CompareNETObjects

Install with NuGet Package Manager Console

Install-Package CompareNETObjects

Install with .NET CLI

dotnet add package CompareNETObjects

• Compare Children (on by default)
• Handling for Trees with Children Pointing To Parents (Circular References)
• Compares Publicly Visible Class Fields and Properties
• Compares Private Fields and Properties (off by default)
• Source code in C#
• NUnit Test Project Included with over 200+ unit tests
• Ability to load settings from a config file for use with powershell
• Ability to pass in the configuration
• Ability to save and load the configuration as json
• Test Extensions .ShouldCompare and .ShouldNotCompare
• Several configuration options for comparing private elements, ignoring specific elements, including specific elements.
• Property and Field Info reflection caching for increased performance
• Rich Differences List or simple DifferencesString
• Difference Callback
• Supports custom comparison for types and properties
• ElapsedMilliseconds indicates how long the comparison took
• Thread Safe
• Beyond Compare Report
• WinMerge Report
• CSV Report
• User Friendly Report
• HTML Report

• Ability to IgnoreCollectionOrder to compare lists of different lengths
• Ability to ignore indexer comparison
• Ability to ignore types
• Ability to ignore specific members by name or by wildcard
• Interface member filtering
• Ability to treat string.empty and null as equal
• Ability to ignore string leading and trailing whitespace
• Case insensitive option for strings
• Ignore millisecond differences between DateTime values or DateTimeOffset values
• Precision for double or decimal values

• Classes
• Dynamic (Expando objects are supported but not DynamicObject)
• Anonymous Types
• Primitive Types (String, Int, Boolean, etc.)
• Structs
• IList Objects
• Collections
• Single and Multi-Dimensional Arrays
• Immutable Arrays
• IDictionary Objects
• Enums
• Timespans
• Guids
• Classes that Implement IList with Integer Indexers
• DataSet Data
• DataTable Data
• DataRow Data
• DataColumn Differences
• LinearGradient
• HashSet
• URI
• IPEndPoint
• Types of Type (RuntimeType)
• StringBuilder
• SByte

• Custom Collections with Non-Integer Indexers cannot be compared.
• Private properties and fields cannot be compared for .NET Core 1.3. They are allowed to be compared in .NET Core 2.0 and higher.
• DynamicObject type is not supported but will be implemented in 2020 when the library is versioned to .NET Framework 4.5
• When ignoring the collection order, the collection matching spec must be a property on the class. It cannot be a field or a property on a child or parent class. The property has to be a simple type.

https://github.com/GregFinzer/Compare-Net-Objects/wiki/Getting-Started

https://github.com/GregFinzer/Compare-Net-Objects/blob/master/Compare-NET-Objects-Help/Compare-NET-Objects-Help.chm?raw=true

https://github.com/GregFinzer/Compare-Net-Objects/wiki/Licensing