Asp.net Dotnet core 3.1未绑定查询参数

调用HTTP get方法时，未正确填写查询参数

让我用代码解释一下

[HttpGet]
public async Task<IActionResult> GetTasks(Guid propertyId, [FromQuery] TaskFilterParams filterParams, [FromQuery] SortingParams sortingParams, [FromQuery] PagingParams pagingParams)
{
 // Do some stuff, not important
}

更新： 我们添加了更多日志记录。数据似乎存在于查询字符串中，但模型没有正确绑定

Log.Debug("Query: {@query}", HttpContext.Request.Query);
            Log.Debug(
                "Get tasks parameters: PropertyId:{@propertyId}, TaskFilterParams:{@filterParams}, SortingParams:{@sortingParams}, PagingParams:{@pagingParams}",
                propertyId, filterParams, sortingParams, pagingParams);

---

因为没有人对Stackoverflow有答案，所以我们在Github上提出了一个问题。。。

public class TaskFilterParams
{
   public FilterParam<IssueCategory> Category { get; set; }
   public FilterParam<RoomClass> RoomClass { get; set; }
   public FilterParam<Guid?> Room { get; set; }
}

public abstract class FilterParam
{
    public FilterOperator Operator { get; set; }
}

[TypeDescriptionProvider(typeof(FilterParamTypeDescriptionProvider))]
[JsonObject]
public class FilterParam<T> : FilterParam
{
    public T Value { get; set; }

    public static bool TryParse(string s, out FilterParam<T> result)
    {
        result = default(FilterParam<T>);
        var filterOperators = Enum.GetValues(typeof(FilterOperator)).Cast<FilterOperator>();
        foreach (var filterOperatorString in filterOperators.Select<FilterOperator, string>(x => x.ToFilterOperatorString()).OrderByDescending(x => x.Length))
        {
            if (s.StartsWith(filterOperatorString))
            {
                if (s.TryParse(filterOperatorString, out result))
                {
                    return true;
                }

                return false;
            }
        }

        return false;
    }
}

public enum IssueCategory
{
    Cleaning = 0,
    Inspection = 1,
    Maintenance = 2
}
public enum RoomClass
{
     Single = 0,
     Double = 1,
     Family = 2
}

Log.Debug("Query: {@query}", HttpContext.Request.Query);
            Log.Debug(
                "Get tasks parameters: PropertyId:{@propertyId}, TaskFilterParams:{@filterParams}, SortingParams:{@sortingParams}, PagingParams:{@pagingParams}",
                propertyId, filterParams, sortingParams, pagingParams);

[16:51:35 DBG] Query: [{"Key": "category", "Value": ["Cleaning"], "$type": "KeyValuePair`2"}, {"Key": "roomClass", "Value": ["Single"], "$type": "KeyValuePair`2"}]
[16:51:35 DBG] Get tasks parameters: PropertyId:[some-guid], TaskFilterParams:{"Category": null, "RoomClass": {"Value": "Single", "Operator": "Equal", "$type": "FilterParam`1"}, "$type": "TaskFilterParams"}