showPP.aspx.cs

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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

using System.Data.SqlClient;
using System.Configuration;

namespace SCard
{
	/// <summary>
	/// showPP 的摘要说明。
	/// </summary>
	public partial class showPP : System.Web.UI.Page
	{
		protected void Page_Load(object sender, System.EventArgs e)
		{
			try
			{ 
				String strID="-1";
				strID=Request.QueryString["id"].ToString ();

				string DBPath = ConfigurationSettings.AppSettings["DataBasePath"];
				string connStr = (DBPath);
				SqlConnection conn=new SqlConnection(connStr);
				String sql="SELECT * FROM Products where PID=" + strID;
				SqlCommand command=new SqlCommand(sql,conn);
 
				conn.Open();
				SqlDataReader dr=command.ExecuteReader();
				dr.Read();
				byte[] imgdata = (byte[])dr["PPicture"];
				Response.BinaryWrite(imgdata);
				dr.Close();
				conn.Close();
			}
			catch
			{   
				//打印 没有图片
				string DBPath = ConfigurationSettings.AppSettings["DataBasePath"];
				string connStr = (DBPath);
				SqlConnection conn2=new SqlConnection(connStr);
				String sql="SELECT * FROM append where id='0'";
				SqlCommand command=new SqlCommand(sql,conn2);
				conn2.Open();
				SqlDataReader dr=command.ExecuteReader();
				dr.Read();
				byte[] imgdata2 = (byte[])dr["image"];                
				Response.BinaryWrite(imgdata2);
				dr.Close();
				conn2.Close();
			}
		}