showproductpicture.aspx.cs

来自「B2B网上商城」· CS 代码 · 共 53 行

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

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

public partial class showProductPicture : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            String strID = "";
            strID = Request.QueryString["id"].ToString();

            SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["ConnStr"]);
            String sql = "SELECT ProductPicture FROM Products where ProductId=" + strID;
            SqlCommand command = new SqlCommand(sql, conn);

            conn.Open();
            SqlDataReader dr = command.ExecuteReader();
            dr.Read();
            byte[] imgdata = (byte[])dr["ProductPicture"];
            Response.BinaryWrite(imgdata);
            dr.Close();
            conn.Close();
        }
        catch
        {
            //打印 没有图片
            SqlConnection conn2 = new SqlConnection(ConfigurationManager.AppSettings["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();
        }

    }
}