Скачать или смотреть How to Effectively Handle JsonProperty Attributes in C# Serialization

Discover how to ignore specific `JsonProperty` names during serialization in C# while using Json.NET. Simplify your JSON operations!
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This video is based on the question https://stackoverflow.com/q/72982079/ asked by the user 'Onur GOZ' ( https://stackoverflow.com/u/16840391/ ) and on the answer https://stackoverflow.com/a/72982530/ provided by the user 'Serge' ( https://stackoverflow.com/u/11392290/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding Json.NET and JsonProperty in C#

When working with C# and JSON handling, you might encounter scenarios where you need to deserialize incoming JSON data into C# classes while maintaining specific property names for serialization. One of the common tools used in .NET for handling JSON is Json.NET, which provides the JsonProperty attribute to customize property names during these operations. However, you might find yourself in a situation where you want to ignore the property names specified in JsonProperty while serializing data back to JSON. This post explores a solution to that problem.

The Problem

Suppose you have a class in C# representing some document details, and you are using the JsonProperty attribute to control how properties are named in JSON. Here’s a quick example of such a class:

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

When an instance of this class is serialized, the output will look something like this:

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

In the above example, the properties are serialized with the names qrCode, gtinNumber, and lotNumber, which may not match the original names you used in the JsonProperty attributes. You want to use the original property names for deserialization but not during serialization.

The Solution: Creating a Constructor

To achieve this, you can modify your class by adding a constructor that maps your properties to the corresponding values from the JSON. Here's how you can structure your class:

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

Key Points of This Solution

Use a Constructor: The defined constructor allows you to specify how to assign incoming properties from JSON to your C# properties, ensuring the correct mapping during deserialization.

Optional JsonProperty: The JsonProperty attribute can still be used but only where necessary. In this case, lotNumber is left with a JsonProperty, but if you prefer to keep it as is, you can omit the attribute altogether.

Serialization: When you serialize an instance of DocumentDetail, you can choose the representation without reflecting the JsonProperty names as shown. This helps keep things clean and accessible for your JSON consumers.

Conclusion

Using Json.NET provides powerful ways to customize JSON serialization and deserialization in C# . By employing a constructor to manage property name discrepancies, you can elegantly handle such scenarios without complicating your codebase. This approach not only keeps your class definitions clear but also enhances maintainability as your application grows.

Now you have a robust solution to ignore property names specified in the JsonProperty attribute during serialization while maintaining control during deserialization. Happy coding!