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Normally when you’re working with JSON, you deserialize it to a target type and get back an initialized and fully populated object. How about if you need to initialize an object yourself, and then populate it with JSON later? For example, let’s say you want to load the following JSON array into a case-insensitive HashSet: … Read more
By default, System.Text.Json.JsonSerializer only serializes public properties. If you want to serialize non-public properties, you have two options: In this article, I’ll show examples of both approaches for handling non-public properties. Updated 2022-02-22 to explain the new JsonInclude attribute added in .NET 5. Write a custom JSON converter to serialize non-public properties When the built-in … Read more
In a console app there are two ways to get commands: After getting a command, you have to parse it to figure out what code to execute. Typically commands have the following format: commandName -argumentName argumentValue. For example, take a look at this familiar git command: This is passing the command line arguments into the … Read more
Most of the time System.Text.Json will get you want you want. You can pass in options to control JSON serialization and deserialization to a certain extent. But sometimes you’ll run into scenarios where you need to customize how it handles a specific type. This is where JsonConverter comes in. You can customize serialization / deserialization … Read more
Dictionaries with string keys are case sensitive by default. If you want a case-insensitive dictionary, use the Dictionary constructor that takes a string comparison option and pass in StringComparer.InvariantCultureIgnoreCase, like this: Note: There are other case-insensitive options you can pick from, such as OrdinalIgnoreCase. Example I have a table that maps users to devices. The … Read more