I have a custom type that I want the MVC model binder serialize/deserialize using my custom JsonConverter for System.Text.Json. Here is my implementation:
public class Enumeration
{
private readonly string _value;
public Enumeration(string value)
{
_value = value;
}
//utility methods
}
public class EmployeeTypeEnum : Enumeration
{
EmployeeTypeEnum(string value) : base(value)
{}
public static implicit operator string(EmployeeTypeEnum employee)
{
return employee.Value
}
public static implicit operator EmployeeTypeEnum(string value)
{
return new EmployeeTypeEnum(value);
}
//Other util methods
}
Custom converter:
public class EmployeeTypeEnumJsonConvertor : System.Text.Json.Serialization.JsonConvertor<EmployeeTypeEnum>
{
public override EmployeeTypeEnum Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
//implementation
}
public override void Write(ref Utf8JsonWriter writer, EmployeeTypeEnum empEnum, JsonSerializerOptions options)
{
//implementation
}
}
Type using the above:
public static class EmployeeType
{
public static readonly EmployeeTypeEnum Manager = "Manager";
}
Model using the employeeTypeEnum:
public class MyViewModel
{
...
[JsonConverter(typeof(EmployeeTypeEnumJsonConvertor))]
public EmployeTypeEnum EmployeeRank {get; set;}
...
}
Ajax call:
$.ajax({
url: `https://localhost:8080/.../GetEmployeeRankInfo?Id=${id}&EmployeeRank=${rank}`,
type: 'application/json',
method: 'GET'
...
});
Controller:
public Task<IActionResult> GetEmployeeRankInfo(MyViewModel model)
{
//Get employee Rank info
}
In the controller, the EmployeeRank is always null. I put a break point inside both Read and Write of the custom converter but none is hit. I also overrode the CanConvert method and not breaking in it there either. I went through a number of SO posts on this topic but most found a workaround. What could cause the custom serializer not to be called? Thanks
