Скачать или смотреть Disabling Lazy Loading and Proxy Creation in Entity Framework for Web API Projects

Learn how to disable `lazy loading` and `proxy creation` for Entity Framework in your ASP.NET Web API project effectively with step-by-step instructions.
---
This video is based on the question https://stackoverflow.com/q/64462446/ asked by the user 'MautaI' ( https://stackoverflow.com/u/3398293/ ) and on the answer https://stackoverflow.com/a/64462556/ provided by the user 'Yehor Androsov' ( https://stackoverflow.com/u/7313094/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Disable entity framework proxy creation and lazy loading from another project

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Disabling Lazy Loading and Proxy Creation in Entity Framework for Web API Projects

When working with Entity Framework in ASP.NET MVC or Web API projects, you might want to optimize data retrieval by controlling certain behaviors such as lazy loading and proxy creation. This is particularly critical in a multi-project solution where data retrieval needs to be efficient and tailored to the specific requirements of each project.

Understanding the Problem

In scenarios where multiple projects reference a database project, each may require distinct settings for Entity Framework. For example, if you're developing an ASP.NET Web API project in conjunction with an MVC project, you might want to prevent the behavior of lazy loading and proxy creation specifically in your API context.

What is Lazy Loading?

Lazy loading is a design pattern that delays the loading of related data until it is needed. This can lead to performance issues if not handled correctly, especially in a web API context where efficiency is crucial.

What is Proxy Creation?

Proxy creation in Entity Framework allows the framework to create derived types of your entity classes at runtime. This enables features like lazy loading, but in some cases, you may want to disable it to enhance performance.

The Solution

To effectively disable lazy loading and proxy creation for your Web API project, you have two approaches:

1. Create a Separate Context Class

One straightforward method is to create a separate derived context class designed specifically for the Web API. This new context can be initialized with the required settings upon creation. Here’s how you can do it:

[[See Video to Reveal this Text or Code Snippet]]

Benefits of This Approach

Isolation of Settings: You can keep the settings for your MVC project unchanged while enforcing the desired restrictions for your Web API.

Customizability: This approach offers flexibility to tweak other context settings for the API without affecting other projects.

2. Use Configuration from web.config

Alternatively, you might want to manage these settings based on configuration values provided in your web.config file. This allows you to switch settings dynamically without modifying the code.

Here’s how you can implement this method:

[[See Video to Reveal this Text or Code Snippet]]

Advantages of Using web.config

Centralized Configuration: You can manage your Entity Framework settings from a central location, making it easier to modify as needed without code changes.

Dynamic Control: This allows for more flexibility—the settings in web.config can easily be changed to alter the behavior without a redeployment.

Conclusion

Choosing the right method to disable lazy loading and proxy creation in your ASP.NET Web API project depends on your specific needs and architecture. Both methods provide effective ways to optimize your Entity Framework context for performance and efficiency. By implementing these strategies, you can ensure that your web API behaves optimally while still leveraging the power of Entity Framework in a multi-project solution.

By taking these steps, you'll be setting up your data context for maximum efficiency, improving response times and ultimately, the user experience within your applications.