images are not uploading in windows7 and vista using asp.net with c#

Question

hi , iam using asp.net 2.0 with sql server 2000
in my site if iam using xp operating system all clients are able to upload the pictures but the clients those who are using windows7 and vista the are getting errors
can you correct my code
 

 

 
<%@ WebHandler Language="C#" Class="right7" %>
using System;
using System.IO;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Web;
public class right7 : IHttpHandler {

public void ProcessRequest (HttpContext context) 
{
string branchid = "";
//if(context.Session["branchid"]!=null)
if (context.Request.QueryString["branchid"] != null)
 
branchid = context.Request.QueryString["branchid"];
else
throw new ArgumentException("No parameter specified");
context.Response.ContentType = "image/jpeg";
Stream strm = ShowImage(branchid);
byte[] buffer = new byte[4096];
int byteSeq = strm.Read(buffer, 0, 4096);
while (byteSeq > 0)
{
context.Response.OutputStream.Write(buffer, 0, byteSeq);
byteSeq = strm.Read(buffer, 0, 4096);
}
//context.Response.BinaryWrite(buffer) 
}
public Stream ShowImage(string branchid)
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["transfer"].ConnectionString);
string sql = "SELECT imgright7 FROM tblImages WHERE BranchId = @BranchId";
SqlCommand cmd = new SqlCommand(sql, con);
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("@BranchId", branchid);
con.Open();
object img = cmd.ExecuteScalar();
try
{
return new MemoryStream((byte[])img);
}
catch
{
return null;
}
finally
{
con.Close();
}
}

public bool IsReusable {
get {
return false;
}
}
}

 
using System.Data;
using System.Data.SqlClient;
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;
public partial class right7image : System.Web.UI.Page
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["transfer"].ConnectionString);
string branchid = "";

protected void Page_Load(object sender, EventArgs e)
{
branchid = Session["UserName"].ToString();
if (IsPostBack == false)
{
Image1.ImageUrl = "right7.ashx?BranchId=" + branchid;
Image2.ImageUrl = "right7old.ashx?BranchId=" + branchid;
}
 
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
Response.Redirect("Images.aspx");
}
protected void Button1_Click(object sender, EventArgs e)
{
//update
//1st copy using ptr
SqlCommand cmdptr = new SqlCommand("copyprevimgr7", con);
cmdptr.CommandType = CommandType.StoredProcedure;
con.Open();
cmdptr.Parameters.AddWithValue("@BranchId", branchid);
cmdptr.ExecuteNonQuery();
con.Close();
 
 
 
//2nd newlybrowse once updateleft1image
SqlCommand cmdupdate = new SqlCommand("updateright7", con);
cmdupdate.CommandType = CommandType.StoredProcedure;
con.Open();
cmdupdate.Parameters.AddWithValue("@BranchId", branchid);
if (FileUpload1.HasFile)
{
FileInfo left1info = new FileInfo(FileUpload1.PostedFile.FileName.Trim());
byte[] left1content = new byte[left1info.Length];
FileStream left1stream = left1info.OpenRead();
left1stream.Read(left1content, 0, left1content.Length);
left1stream.Close();
cmdupdate.Parameters.AddWithValue("@imgright7", left1content);
}
 
cmdupdate.Parameters.AddWithValue("@noter7", TextBox1.Text);
 
if (cmdupdate.ExecuteNonQuery() != 0)
{
con.Close();
clsdatasettransfer.ShowAlertMessage("Updated.....");
TextBox1.Text = "";
System.Threading.Thread.Sleep(2000);
Image1.ImageUrl = "right7.ashx?BranchId=" + Session["UserName"].ToString();
Image2.ImageUrl = "right7old.ashx?BranchId=" + Session["UserName"].ToString();
}
else
{
 
clsdatasettransfer.ShowAlertMessage("Updatefailed");
}
}
}