Можно ли разделить значение и добавить условие if в запрос LINQ?

Question

Я начинаю со следующего JSON ответа:

{
  "d": {
    "RowData": [
      {
        "GenreId": 11,
        "GenreName": "Musical",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_1"
      },
      {
        "GenreId": 12,
        "GenreName": "kids",
        "subjecturl": "subjecturl_abc",
        "logourl": "logourl_2"
      },
      {
        "GenreId": 13,
        "GenreName": "other",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_3"
      },
      {
        "GenreId": 14,
        "GenreName": "Musical",
        "subjecturl": "subjecturl_abc",
        "logourl": "logourl_4"
      },
      {
        "GenreId": 15,
        "GenreName": "Music",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_5"
      },
      {
        "GenreId": 16,
        "GenreName": "Faimaly",
        "subjecturl": "subjecturl_abc",
        "logourl": "logourl_6"
      },
      {
        "GenreId": 17,
        "GenreName": "other",
        "subjecturl": "subjecturl_abc",
        "logourl": "logourl_7"
      },
      {
        "GenreId": 18,
        "GenreName": "other",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_8"
      },
      {
        "GenreId": 19,
        "GenreName": "kids",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_9"
      },
      {
        "GenreId": 20,
        "GenreName": "Musical",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_10"
      },
      {
        "GenreId": 21,
        "GenreName": "other",
        "subjecturl": "subjecturl_123",
        "logourl": "logourl_11"
      }
    ]
  }
}

Моя цель - преобразовать приведенный выше ответ в новый, как показано ниже:

{
  "rows": [
    {
      "title": "Musical",
      "items": [
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_1",
          "subjecturlsplit": "1"
        },
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_4",
          "subjecturlsplit": "abc"
        },
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_10",
          "subjecturlsplit": "10"
        }
      ]
    },
    {
      "title": "kids",
      "items": [
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_2",
          "subjecturlsplit": "abc"
        },
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_9",
          "subjecturlsplit": "9"
        }
      ]
    },
    {
      "title": "Music",
      "items": [
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_5",
          "subjecturlsplit": "5"
        }
      ]
    },
    {
      "title": "other",
      "items": [
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_3",
          "subjecturlsplit": "3"
        },
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_7",
          "subjecturlsplit": "abc"
        },
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_8",
          "subjecturlsplit": "8"
        },
        {
          "hdsubjecturl": "logourl_123",
          "hdlogourl": "logourl_11",
          "subjecturlsplit": "11"
        }
      ]
    },
    {
      "title": "Faimaly",
      "items": [
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_6",
          "subjecturlsplit": "abc"
        }
      ]
    }
  ]
}

Я пробовал следующий запрос LINQ для выполнения указанного выше ответа:

var data = json["d"]?["RowData"]
    .GroupBy(x => x["GenreName"])
    .ToDictionary(g => g.Key, g => g.ToList())
    .Select(kvp => new
    {
        title = kvp.Key,
        items = kvp.Value.Select(x => new { hdsubjecturl = x["subjecturl"], url = x["logourl"], subjecturlsplit = "" })
    });
var result = JObject.FromObject(new { rows = data });

Используя этот запрос, я сделал ответ, как показано ниже.

{
  "rows": [
    {
      "title": "Musical",
      "items": [
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_1",
          "subjecturlsplit": ""
        },
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_4",
          "subjecturlsplit": ""
        },
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_10",
          "subjecturlsplit": ""
        }
      ]
    },
    {
      "title": "kids",
      "items": [
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_2",
          "subjecturlsplit": ""
        },
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_9",
          "subjecturlsplit": ""
        }
      ]
    },
    {
      "title": "Music",
      "items": [
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_5",
          "subjecturlsplit": ""
        }
      ]
    },
    {
      "title": "other",
      "items": [
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_3",
          "subjecturlsplit": ""
        },
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_7",
          "subjecturlsplit": ""
        },
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_8",
          "subjecturlsplit": ""
        },
        {
          "hdsubjecturl": "subjecturl_123",
          "hdlogourl": "logourl_11",
          "subjecturlsplit": ""
        }
      ]
    },
    {
      "title": "Faimaly",
      "items": [
        {
          "hdsubjecturl": "subjecturl_abc",
          "hdlogourl": "logourl_6",
          "subjecturlsplit": ""
        }
      ]
    }
  ]
}

Обратите внимание, что subjecturlsplit пусто для каждого элемента . Можно ли добавить условное logi c в этот запрос LINQ? Я хотел бы разделить значение hdsubjecturl на подчеркивание (_) и проверить, равна ли вторая часть abc. Если это так, то я хочу установить subjecturlsplit в поле hdsubjecturl как есть. В противном случае я хочу разделить значение hdlogourl на подчеркивание и установить subjecturlsplit на вторую часть этого разделения. Или есть другой способ сделать это?

Answer 1

Да, вы можете поместить тело блока в лямбда-выражение, чтобы вы могли делать там свой logi c:

var data = json["d"]?["RowData"]
    .GroupBy(x => x["GenreName"])
    .ToDictionary(g => g.Key, g => g.ToList())
    .Select(kvp => new
    {
        title = kvp.Key,
        items = kvp.Value.Select(x => 
        {
            var hdsubjecturl = (string)x["subjecturl"];
            var url = (string)x["logourl"];
            var subjecturlsplit = hdsubjecturl.Split('_')[1] == "abc" ? "abc" : url.Split('_')[1];
            return new { hdsubjecturl, url, subjecturlsplit };
        })
    });

Fiddle: https://dotnetfiddle.net/RH60VC