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  • C#获取存储过程的 Return返回值和Output输出参数值

    1.获取Return返回值

     程序代码

    //存储过程
    //Create PROCEDURE MYSQL
    //     @a int,
    //     @b int
    //AS
    //     return @a + @b
    //GO
    SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString());
    conn.Open();
    SqlCommand MyCommand = new SqlCommand("MYSQL", conn);
    MyCommand.CommandType = CommandType.StoredProcedure;
    MyCommand.Parameters.Add(new SqlParameter("@a", SqlDbType.Int));
    MyCommand.Parameters["@a"].Value = 10;
    MyCommand.Parameters.Add(new SqlParameter("@b", SqlDbType.Int));
    MyCommand.Parameters["@b"].Value = 20;
    MyCommand.Parameters.Add(new SqlParameter("@return", SqlDbType.Int));
    MyCommand.Parameters["@return"].Direction = ParameterDirection.ReturnValue;
    MyCommand.ExecuteNonQuery();
    Response.Write(MyCommand.Parameters["@return"].Value.ToString());


    2.获取Output输出参数值

     程序代码

    //存储过程
    //Create PROCEDURE MYSQL
    //     @a int,
    //     @b int,
    //     @c int output
    //AS
    //     Set @c = @a + @b
    //GO
    SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlServer"].ToString());
    conn.Open();
    SqlCommand MyCommand = new SqlCommand("MYSQL", conn);
    MyCommand.CommandType = CommandType.StoredProcedure;
    MyCommand.Parameters.Add(new SqlParameter("@a", SqlDbType.Int));
    MyCommand.Parameters["@a"].Value = 20;
    MyCommand.Parameters.Add(new SqlParameter("@b", SqlDbType.Int));
    MyCommand.Parameters["@b"].Value = 20;
    MyCommand.Parameters.Add(new SqlParameter("@c", SqlDbType.Int));
    MyCommand.Parameters["@c"].Direction = ParameterDirection.Output;
    MyCommand.ExecuteNonQuery();
    Response.Write(MyCommand.Parameters["@c"].Value.ToString());

    ---------------------------------------------------------------------------------------------------------------

    以下代码转自网络:

    C#接收存储过程返回值:

         public static int User_Add(User us)
         {
             int iRet;
             SqlConnection conn = new SqlConnection(Conn_Str);
             SqlCommand cmd = new SqlCommand("User_Add", conn);
             cmd.CommandType = CommandType.StoredProcedure;
             cmd.Parameters.AddWithValue("@UName", us.UName);
             cmd.Parameters.AddWithValue("@UPass", us.UPass);
             cmd.Parameters.AddWithValue("@PassQuestion", us.PassQuestion);
             cmd.Parameters.AddWithValue("@PassKey", us.PassKey);
             cmd.Parameters.AddWithValue("@Email", us.Email);
             cmd.Parameters.AddWithValue("@RName", us.RName);
             cmd.Parameters.AddWithValue("@Area", us.Area);
             cmd.Parameters.AddWithValue("@Address", us.Address);
             cmd.Parameters.AddWithValue("@ZipCodes", us.ZipCodes);
             cmd.Parameters.AddWithValue("@Phone", us.Phone);
             cmd.Parameters.AddWithValue("@QQ", us.QQ);
             cmd.Parameters.Add("@RETURN_VALUE", "").Direction = ParameterDirection.ReturnValue;      
             try
             {
                 conn.Open();
                 cmd.ExecuteNonQuery();
                 iRet = (int)cmd.Parameters["@RETURN_VALUE"].Value;
             }
             catch (SqlException ex)
             {
                 throw ex;
             }
             finally
             {
                 conn.Close();
             }
             return iRet;
         }

    C#接收存储过程输出参数:

        public static decimal Cart_UserAmount(int UID)
        {
            decimal iRet;
            SqlConnection conn = new SqlConnection(Conn_Str);
            SqlCommand cmd = new SqlCommand("Cart_UserAmount", conn);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@UID", UID);
            cmd.Parameters.Add("@Amount", SqlDbType.Decimal).Direction=ParameterDirection.Output;
            try
            {
                conn.Open();
                cmd.ExecuteNonQuery();
                iRet = (decimal)cmd.Parameters["@Amount"].Value;
            }
            catch (SqlException ex)
            {
                throw ex;
            }
            finally
            {
                conn.Close();
            }
            return iRet;
        }

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  • 原文地址:https://www.cnblogs.com/wwwzzg168/p/3570724.html
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