Скачать или смотреть Understanding JsonSerializer Serialization Issues with BigInteger in C#

Explore common problems with `JsonSerializer` serialization in C# , particularly when dealing with `BigInteger` lists. Learn how to correctly serialize and deserialize `BigInteger` objects with clear examples and solutions.
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This video is based on the question https://stackoverflow.com/q/65729208/ asked by the user 'Travis Rivera' ( https://stackoverflow.com/u/3777797/ ) and on the answer https://stackoverflow.com/a/65729741/ provided by the user 'JKC' ( https://stackoverflow.com/u/11675744/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting JsonSerializer Serialization of BigInteger Lists in C#

When using C# to handle JSON serialization, developers often encounter a variety of challenges. One such perplexing issue arises when attempting to serialize and deserialize a list of BigInteger types. If you've ever faced the situation where serializing a BigInteger list results in a JSON output filled with zeros, then you're not alone. Let’s dive into the problem and provide a clear solution.

The Problem: Unexpected Output

The issue occurs when we attempt to serialize a list of BigInteger values using the JsonSerializer in C# . For example, consider the following code block:

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Expected vs. Actual Output

Expected Output:

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Actual Output:

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What could cause JsonSerializer to misinterpret our BigInteger values?

The Solution: Correcting the Serialization Process

The core issue often stems from confusing naming conventions in variable assignments or, most likely, using the wrong serialization method. Here’s how you can resolve this issue effectively.

Step 1: Check your Variable Assignment

First off, you should ensure that you're assigning your deserialized data correctly. It was suggested to use the variable knownPrimes instead of numbers when deserializing the data. Here’s the corrected approach:

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This change simplifies the tracking of your data and can prevent issues linked to reassignments.

Step 2: Use the Right Serialization Method

We found that using JsonConvert from the Newtonsoft.Json library can alleviate serialization issues that you may encounter with JsonSerializer. Here’s how you can use it:

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By employing JsonConvert.SerializeObject and JsonConvert.DeserializeObject, you might find that it resolves the serialization issue you're facing.

Conclusion

Handling BigInteger serialization in C# can be tricky, especially when using JsonSerializer. By ensuring correct variable assignments and opting for the right serialization framework, you can overcome these hurdles. Be sure to test your code snippets thoroughly after making these changes to ensure your output aligns with your expectations. Happy coding!