Efficient Multi-Object Mapping with Automapper in C#

As a C# developer, you know that object mapping can be a tedious task, especially when dealing with multiple objects. This is where Automapper comes in, a powerful tool that simplifies the process of mapping objects.

  1. What is Automapper?
  2. Efficient Multi-Object Mapping
  3. Conclusion

What is Automapper?

Automapper is a .NET library that allows you to map objects of one type to objects of another type. It provides a simple and efficient way to transfer data between objects without the need for manual mapping.

Efficient Multi-Object Mapping

One of the key features of Automapper is its ability to map multiple objects at once. This is particularly useful when dealing with complex object graphs that have many nested objects.

To map multiple objects, you simply need to create a mapping configuration for each object and then use the Mapper.Map() method to perform the mapping. For example:

var config1 = new MapperConfiguration(cfg => {
    cfg.CreateMap<SourceObject1, DestinationObject1>();

var config2 = new MapperConfiguration(cfg => {
    cfg.CreateMap<SourceObject2, DestinationObject2>();

var sourceObject1 = new SourceObject1();
var sourceObject2 = new SourceObject2();

var destinationObject1 = Mapper.Map<SourceObject1, DestinationObject1>(sourceObject1);
var destinationObject2 = Mapper.Map<SourceObject2, DestinationObject2>(sourceObject2);

In this example, we create two mapping configurations, one for each source and destination object. We then use the Mapper.Map() method to map each object to its corresponding destination object.

Automapper also provides several advanced features, such as support for nested mappings, mapping of collections, and custom type converters. These features allow you to handle even the most complex object graphs with ease.


Automapper is a powerful tool that simplifies the process of object mapping in C#. Its ability to map multiple objects at once makes it an efficient solution for dealing with complex object graphs. With Automapper, you can focus on the business logic of your application instead of spending time manually mapping objects.

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