cmd.Prepare()不执行

问题描述

嗨

我有这个代码

 int number=reader2.FieldCount;
             
            string insertString="insert into S"  + "values(";
            for (int i = 1; i <= number; i++)
            {
                insertString += "@inputs" + i; 
                if (i != NFIELDS)
                {
                    insertString += ",";
                }
                else
                {
                    insertString += ")";
                }
            }

..
...

SqlCommand cmd= new SqlCommand(insertString, conn);

Console.WriteLine(@"Please enter" + reader2.FieldCount + " fields separated by space");
                 string linefields = Console.ReadLine();
                 Regex r = new Regex("[ ]+");
                 string[] fields = r.Split(linefields);

                 for (int j = 0; j <= reader2.FieldCount-1; j++)/
                 {
                    Console.WriteLine(@"Please enter" + fields[j]);

                     switch (types[j])
                     {
                         case "int": cmd.Parameters.Add("@inputs" + j, SqlDbType.Int);
                             break;
                        case "float": cmd.Parameters.Add("@inputs" + j, SqlDbType.Float);
                             break;
                         default: cmd.Parameters.Add("@inputs" + j, SqlDbType.VarChar);
                             break;
                     }
cmd.Parameters[j].Value = fields[j];


                 }
                         
            cmd.Prepare();

            cmd.ExecuteNonQuery();

但是cmd.Prepare()无法执行，因此程序会停止.有人可以帮我找我犯错的地方吗?

But the cmd.Prepare() doesn't execute, here the program stops. Can anybody help me please where I make a mistake?

谢谢

推荐答案

string insertString="insert into S"  + "values(";

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