.net 获取 存储过程的输出参数

存储过程: 做的就是 返回最后一次插入的标识列 id值

 

create proc pa2



@id int output

as

insert into a(name) values('5')

set @id=@@identity

表: id 是标识列 ,

 

 

后台代码: 

 string cons = ConfigurationManager.ConnectionStrings["ApplicationServices"].ToString();



        using (SqlConnection con=new SqlConnection(cons))

        {

            if (con.State==ConnectionState.Closed)

            {

                con.Open();

                

            }



            SqlCommand cmd = new SqlCommand();

            cmd.Connection = con;

            cmd.CommandType = CommandType.StoredProcedure;

            cmd.CommandText = "pa2";



            cmd.Parameters.Add(new SqlParameter("@id",DbType.Int32));



            cmd.Parameters["@id"].Direction = ParameterDirection.Output;



            cmd.ExecuteNonQuery();

            con.Close();

            Response.Write(cmd.Parameters["@id"].Value.ToString());

            



        }

 

 

效果: