问题描述
在执行相同功能时获取此错误消息:
Getting this error message while executing the same function:
Procedure or function 'ismovieexists' expects parameter '@movie_name', which was not supplied.
public int add_movie(mymovie objmymovie)
{
SqlConnection cn = new SqlConnection(_connectionstring);
cn.Open();
//SqlDataReader dr;
SqlCommand cmd = new SqlCommand("ismovieexists", cn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@movie_name", objmymovie.MOVIE_NAME);
SqlParameter d = new SqlParameter("@d", SqlDbType.Int);
d.Direction = ParameterDirection.ReturnValue;
cmd.Parameters.Add(d);
cmd.ExecuteReader();
int i = (int)cmd.Parameters["@d"].Value;
if (i == 0)
{
SqlCommand cmd1 = new SqlCommand();
cmd1.Connection = cn;
cmd1.CommandType = CommandType.StoredProcedure;
cmd1.CommandText = "insert_values_in_movie_master";
cmd1.Parameters.AddWithValue("@movie_name", objmymovie.MOVIE_NAME);
cmd1.Parameters.AddWithValue("@rating", objmymovie.RATING);
cmd1.Parameters.AddWithValue("@realease_year", objmymovie.REALEASE_YEAR);
cmd1.Parameters.AddWithValue("@starcast", objmymovie.STARCAST);
cmd1.Parameters.AddWithValue("@language", objmymovie.LANGUAGE);
cmd1.Parameters.AddWithValue("@display_home", objmymovie.DISPLAY_HOME);
cmd1.Parameters.AddWithValue("@block_status", objmymovie.BLOCK_STATUS);
cmd1.Parameters.AddWithValue("@no_of_copies", objmymovie.no_of_copies);
cmd1.Parameters.AddWithValue("@MOVIE_category", objmymovie.MOVIE_category);
cmd1.Parameters.AddWithValue("@MOVIE_flag", objmymovie.MOVIE_FLAG);
cmd1.ExecuteNonQuery();
return i;
}
else
return 1;
}
添加:
我尝试了ParameterDirection.Output
,但由于过程或函数ismovieexists指定的参数过多"而出错.
将变量名称更改为小写.
mymovie类的代码为
ADDITION:
I tried ParameterDirection.Output
but got error as "Procedure or function ismovieexists has too many arguments specified."
changed the variable name to lowercase.
code for class mymovie as
public class mymovie
{
public int movie_id { get; set; }
public string movie_name { get; set; }
public int rating { get; set; }
public int realease_year { get; set; }
public string starcast { get; set; }
public string language { get; set; }
public string display_home { get; set; }
public string block_status { get; set; }
public int no_of_copies { get; set; }
public string movie_category { get; set; }
public string movie_flag { get; set; }
public int fetch_total_no_movies()
{
mySqlDataAccessLayer obj = new mySqlDataAccessLayer();
int i = obj.total_no_of_movies();
return i;
}
public int add_movie(string name,int rating,int year,string starcast,string lang,string displayname,string block,int copies,string category,string cd)
{
mySqlDataAccessLayer obj = new mySqlDataAccessLayer();
int i = obj.add_movie(this);
return i;
}
在这里我也在做同样的事情,但是代码在gr8上工作..
here too i m doing the same but code is working gr8..
public int loginuser(myadmin objmyadmin)
{
SqlConnection cn = new SqlConnection(_connectionstring);
cn.Open();
SqlCommand cmd = new SqlCommand("valid_login", cn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@username", objmyadmin.admin_name);
cmd.Parameters.AddWithValue("@password", objmyadmin.password);
SqlParameter d = new SqlParameter("@d", SqlDbType.Int);
d.Direction = ParameterDirection.ReturnValue;
cmd.Parameters.Add(d);
cmd.ExecuteReader();
int z = (int)cmd.Parameters["@d"].Value;
return z;
}
有人帮助我,让我爱不释手"..
"someone plz help me so i cud let my hair grow"..
推荐答案
d.Direction = ParameterDirection.ReturnValue;
如果它是输出参数,则应使用ParameterDirection.Output
如果d
实际上是存储过程的返回数据,则不应将其定义为参数.
If it''s an output parameter, you should use ParameterDirection.Output
If the d
is actually the return data of a stored procedure then you shouldn''t define it as a parameter.
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