c# - (Question on best practice) Why is "using System.Text" there …
2011年6月9日 · The System.Text namespace contains classes, abstract base classes and helper classes. Say for example if you wanted to take advantage of the StringBuilder, Decoder, Encoder, etc.... The classes above, plays a significant role in most cases in .net.
c# - Equivalent of JObject in System.Text.Json - Stack Overflow
2021年1月7日 · As of Nov 2021, .NET 6 introduces the System.Text.Json.Nodes namespace which: Provides types for handling an in-memory writeable document object model (DOM) for random access of the JSON elements within a structured view of the data. The four new types are JsonArray, JsonObject, JsonNode and JsonValue.
Is polymorphic deserialization possible in System.Text.Json?
2019年9月24日 · From the documentation page What’s new in System.Text.Json in .NET 7: Type Hierarchies: System.Text.Json now supports polymorphic serialization and deserialization of user-defined type hierarchies. This can be enabled by decorating the base class of a type hierarchy with the new JsonDerivedTypeAttribute. First, let's consider serialization ...
Is using the system.text.json no longer possible for serializing ...
2019年12月27日 · Simply add the corresponding System.Text.Json reference through References. Right click on References in Solution explorer. Once Reference Manager opens , go to Assemblies section . Scroll through all the assemblies and look out for System.Text.Json and then check this assembly. Try again to add the namespace.
c# - How do you read a simple value out of some json using …
2019年8月28日 · var o = System.Text.Json.JsonSerializer.Deserialize<some-type>(json); o.id // <- here's the ID! But I don't have a type that fits this definition and I don't want to create one. I've tried deserializing to dynamic but I was unable to get that working.
System.Text.Json: Deserialize JSON with automatic casting
2019年11月29日 · The current implementation throws System.InvalidCastException: Unable to cast object of type 'System.Collections.Generic.List1[System.String]' to type 'System.Collections.Generic.IList1[System.Object]' when deserializing an array like [12345] to a string[] field. Also you won't need to override the CanConvert() method.
c# - System.Text.Json: How to serialize a individual enum as …
2021年9月16日 · System.Text.Json default to number the enum serialization. In my case I need the string for that in the Startup.cs I add a converter to get all the enum serializing to string as is show here. .AddJsonOptions( c => { c.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter()); } );
powershell - Encode a string in UTF-8 - Stack Overflow
This is the best question I search that lead me to the above solution for text encoding/decoding characters in PowerShell. In my case I was trying to debug malformed UTF8 characters. Hope it helps someone in the future.
System.Text.Json: How do I specify a custom name for an enum …
2019年11月26日 · As far as I know the only enum-related thing that got fixed is System.Text.Json: Naming policies are not applied consistently to [Flags] enum values by JsonStringEnumConverter. #31622. A roundup of all .Net 5 System.Text.Json improvements can be found here –
System.Text.Json.JsonElement ToObject workaround
Still using this answer on dotnet 5 some 18 months later. Needs a writer.Flush(); after element.WriteTo(writer); though otherwise you sometimes get System.Text.Json.JsonException: 'Expected depth to be zero at the end of the JSON payload. There is an open JSON object or array that should be closed.