Mysql 存储过程未返回MVC5中的值

我在MVC5中工作，通过db方法使用实体框架。我使用Mysql作为数据库。我创建了一个过程，当调用Mysql中的过程时，它会按照我的期望工作。但当我在MVC中使用过程时，它每次返回0

存储过程

CREATE PROCEDURE `checkSeasonAvailability`( 
    IN paramSeasonId INT,   
    IN paramHotelId INT,
    IN paramStartDate varchar(20),
    IN paramEndDate varchar(20)
)
BEGIN
    DECLARE _startDate,_endDate DATETIME;
    DECLARE _hotelseasonID BIGINT(20);
    DECLARE _count,_rowCount,_dateDiff INT;
    DECLARE _index INT DEFAULT 1;
    DECLARE i INT DEFAULT 0;
    DECLARE cursorSeasonList CURSOR FOR SELECT `hotel_season_id`,`start_date`,`end_date`
            FROM    hotel_season_link
            WHERE   hotel_id    =   paramHotelId        &&
                    season_id   =   paramSeasonId       &&
                    active      =   TRUE;
    OPEN cursorSeasonList;
    SET _rowCount=FOUND_ROWS();
    SET _count=_rowCount;
    IF(_rowCount>0) THEN                    
        Proc:WHILE _index <= _rowCount DO
            FETCH cursorSeasonList INTO _hotelseasonID,_startDate,_endDate;
            SET _dateDiff=datediff(paramEndDate,paramStartDate);
            SET i=0;
            WHILE i <= _dateDiff DO

                SELECT COUNT(*) FROM hotel_season_link
                WHERE
                        adddate(paramStartDate,i) BETWEEN _startDate AND _endDate INTO _count;

                IF(_count>0) THEN
                    SELECT 1;
                    LEAVE Proc;     
                END IF;
                SET i=i+1;
            END WHILE;
        SET _index=_index+1;
        END WHILE;
    END IF;    
END

CALL checkSeasonAvailability(1,3,'2014-12-26 00:00:00','2014-12-31 00:00:00');//call in mysql

当我调试代码时，我发现所有必需的参数都发送成功，但我没有得到返回值。

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如果我的代码有任何错误，请建议我。

我自己解决这个问题。我更改了店内程序和行动方法

String format = "yyyy-MM-dd hh:mm:ss";
System.Data.Entity.Core.Objects.ObjectParameter flag = new System.Data.Entity.Core.Objects.ObjectParameter("flag", typeof(int));
var status = db.checkSeasonAvailability(hotelSeasonId,seasonId, hotelId, startDate.ToString(format), endDate.ToString(format), flag);

我在我的过程中又添加了一个参数作为输出，并将返回值存储在此变量中

OUT Flag int

SET Flag=0;
SELECT Flag;

然后改变行动方法

String format = "yyyy-MM-dd hh:mm:ss";
System.Data.Entity.Core.Objects.ObjectParameter flag = new System.Data.Entity.Core.Objects.ObjectParameter("flag", typeof(int));
var status = db.checkSeasonAvailability(hotelSeasonId,seasonId, hotelId, startDate.ToString(format), endDate.ToString(format), flag);

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看看这些资源：谢谢@迈克尔斯利