如何从SQL Server存储过程调用嵌套的json到C#中的API调用

CREATE PROCEDURE GetNestedJsonData
AS
BEGIN
    SELECT 
        OuterTable.ColumnName1,
        (
            SELECT InnerTable.ColumnName2
            FROM InnerTable
            WHERE InnerTable.ForeignKey = OuterTable.PrimaryKey
            FOR JSON AUTO
        ) AS NestedJson
    FROM OuterTable
    FOR JSON AUTO
END

using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.Http;

public class NestedJsonController : ApiController
{
    [HttpGet]
    public IHttpActionResult GetNestedJsonData()
    {
        string connectionString = "Data Source=YourServer;Initial Catalog=YourDatabase;User ID=YourUsername;Password=YourPassword";

        try
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                connection.Open();

                using (SqlCommand command = new SqlCommand("GetNestedJsonData", connection))
                {
                    command.CommandType = CommandType.StoredProcedure;

                    using (SqlDataReader reader = command.ExecuteReader())
                    {
                        if (reader.HasRows)
                        {
                            while (reader.Read())
                            {
                                string jsonData = reader.GetString(0);
                                // 处理嵌套的JSON数据
                            }

                            reader.NextResult(); // 移动到下一个结果集，即嵌套的JSON数据
                            
                            while (reader.Read())
                            {
                                string nestedJsonData = reader.GetString(0);
                                // 处理嵌套的JSON数据
                            }
                        }
                    }
                }
            }

            return Ok("Success");
        }
        catch (Exception ex)
        {
            return InternalServerError(ex);
        }
    }
}