asp.net执行存储过程 .net怎么调用存储过程

String conn3 = "Data Source=WEINIU;Initial Catalog=sde;Persist Security Info=True;User ID=sa;Password=m"; 

             SqlConnection connection3 = new SqlConnection(conn3); 

             string sql3 = "PR_GENXINJIUQISI";//过程名字              

             SqlCommand cmd3 = new SqlCommand();//执行对象  

             cmd3.CommandType = CommandType.StoredProcedure;//设置解释方法为存储过程              

             cmd3.CommandText = sql3;//设置执行语句  

             cmd3.Connection = connection3;//执行的链接 对象  

             connection3.Open();//打开数据库  

             int count = (int)cmd3.ExecuteNonQuery();//返回受影响行数              

             if (count > 0) 

             { 

                 MessageBox.Show("执行成功!"); 

             } 

             connection3.Close();//关闭