https://github.com/adamfoneil/copyobject

A small library for copying plain objects with identically-named properties
https://github.com/adamfoneil/copyobject

object-mapping

Last synced: 8 months ago
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A small library for copying plain objects with identically-named properties

• Host: GitHub
• URL: https://github.com/adamfoneil/copyobject
• Owner: adamfoneil
• License: mit
• Created: 2021-03-01T18:02:10.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2021-03-01T19:10:29.000Z (about 5 years ago)
• Last Synced: 2025-06-25T00:07:37.008Z (9 months ago)
• Topics: object-mapping
• Language: C#
• Homepage:
• Size: 15.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
[![Build status](https://ci.appveyor.com/api/projects/status/43ykvn36cq4u67mu?svg=true)](https://ci.appveyor.com/project/adamosoftware/copyobject)

[![Nuget](https://img.shields.io/nuget/v/AO.CopyObject)](https://www.nuget.org/packages/AO.CopyObject/)

The idea here is to copy one object to another or to a new instance, typically from some kind of DTO to a database model class or vice versa via extension method. For example

```csharp

using CopyObjectLibrary;

...

var dest = source.CopyAs();

```

This would copy matching properties of `source` to a new instance of type `SomeType dest`.

This mapper requires properties to be identically-named and a type that's [close enough](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/TypeExtensions.cs#L12). "Close enough" means `T` == `T` but also `T` == `Nullable` or `Nullable` == `T`.

See examples in [tests](https://github.com/adamfoneil/CopyObject/blob/master/Testing/CopyTests.cs).

# Reference

## CopyObjectLibrary.ObjectExtensions [ObjectExtensions.cs](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L7)

### Methods

- [T](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L14) [CopyAs](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L14)

 (this object object)

- [T](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L20) [CopyAs](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L20)

 (this object object, T instance)

- void [CopyTo](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L39)

 (this object object, T instance)

- bool [Equals](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L43)

 (PropertyInfo x, PropertyInfo y)

- int [GetHashCode](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/ObjectExtensions.cs#L46)

 (PropertyInfo obj)

## CopyObjectLibrary.TypeExtensions [TypeExtensions.cs](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/TypeExtensions.cs#L6)

### Methods

- bool [IsSimpleType](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/TypeExtensions.cs#L8)

 (this Type type)

- bool [IsNullableGeneric](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/TypeExtensions.cs#L10)

 (this Type type)

- bool [IsTypeCloseEnough](https://github.com/adamfoneil/CopyObject/blob/master/CopyObject/TypeExtensions.cs#L12)

 (this Type type, Type compareWith)