Entity Framework returns empty object-CodePudding

I have a paginated lookup to which I decided to add a total count, so that the front-end webpage can get the total (non-paginated) count and the paginated list in one API call. To do this, I created a wrapper class to contain the previously working List and the total count:

public class ReturnList<T>
{
  public List<T> list;
  public int unpaginatedLength;

  public ReturnList(List<T> list, int unpaginatedLength)
  {
    this.list = list;
    this.unpaginatedLength = unpaginatedLength;
  }
}

Then in my get:

[HttpGet("get")]
public async Task<ActionResult<ReturnList<dynamic>>> Get(params)
{
  List<dynamic> myList = await GetListSomehow();  // Using dynamic because I'm specifying columns to return
  int totalLength = await GetLengthSomehow();
  ReturnList returnList = new ReturnList<dynamic>(myList, totalLength);
  return Ok(returnList);
}

When I inspect everything in the debugger, everything looks like I expect it (returnList has a List (or an array, when I tried swapping out the types) with all the right objects, and an int with the expected length) to look up until it returns, but when I receive the reply in the front-end, the body of the response is just an empty {}. Is there something I'm missing to get the values to return across the internet correctly?

CodePudding user response：

Try changing the fields inside of ReturnList to properties.

public class ReturnList<T>
{
    public List<T> list { get; set; }
    public int unpaginatedLength { get; set; }
}

I believe the json serializer only serializes properties, while ignoring fields.