Images类

using System;
using System.Data;
using System.Data.SqlClient;
using System.Collections;

namespace Db
{
 /// <summary>
 /// Images 的摘要说明。
 /// </summary>
 public class Images
 {
  public Images()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //
  }

  private SqlConnection conn;
  private SqlCommand cmd;
  private SqlDataReader dr;

  public void add(ArrayList a)
  {
   conn = new SqlConnection(Str.con);
   cmd = new SqlCommand("Images_add",conn);
   cmd.CommandType = CommandType.StoredProcedure;

   cmd.Parameters.Add("@Path",SqlDbType.VarChar,200).Value = a[0];
   cmd.Parameters.Add("@Width",SqlDbType.VarChar,50).Value = a[1];
   cmd.Parameters.Add("@Height",SqlDbType.VarChar,50).Value = a[2];
   cmd.Parameters.Add("@AddDate",SqlDbType.VarChar,50).Value = a[3];
   cmd.Parameters.Add("@Category",SqlDbType.VarChar,50).Value = a[4];
   cmd.Parameters.Add("@Subject",SqlDbType.VarChar,50).Value = a[5];

   conn.Open();
   try
   {
    cmd.ExecuteNonQuery();
   }
   catch(Exception ex)
   {
    throw new Exception(ex.Message);
   }
   finally
   {
    cmd.Dispose();
    conn.Close();
   }
  }

  public void del(int i)
  {
   conn = new SqlConnection(Str.con);
   cmd = new SqlCommand("Images_del",conn);
   cmd.CommandType = CommandType.StoredProcedure;

   cmd.Parameters.Add("@ID",SqlDbType.Int).Value = i;

   conn.Open();
   try
   {
    cmd.ExecuteNonQuery();
   }
   catch(Exception ex)
   {
    throw new Exception(ex.Message);
   }
   finally
   {
    cmd.Dispose();
    conn.Close();
   }
  }

  public SqlDataReader sel()
  {
   conn = new SqlConnection(Str.con);
   cmd = new SqlCommand("Images_sel",conn);
   cmd.CommandType = CommandType.StoredProcedure;

   conn.Open();
   dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
   return dr;
  }
 }
}