TECHNOLOGIES
FORUMS
JOBS
BOOKS
EVENTS
INTERVIEWS
Live
MORE
LEARN
Training
CAREER
MEMBERS
VIDEOS
NEWS
BLOGS
Sign Up
Login
No unread comment.
View All Comments
No unread message.
View All Messages
No unread notification.
View All Notifications
Answers
Post
An Article
A Blog
A News
A Video
An EBook
An Interview Question
Ask Question
Forums
Monthly Leaders
Forum guidelines
Santhonabin
NA
51
212.9k
image upload/retrieve problem urgent...
Nov 23 2010 12:48 AM
hi..
i want correct coding ..
pls tell me how to correct this error part
send me soon
coding...
ShowImage.ashx
---------------------------------------
using
System;
using
System.Configuration;
using
System.Web;
using
System.IO;
using
System.Data;
using
System.Data.SqlClient;
public
class
ShowImage
:
IHttpHandler
{
public
void
ProcessRequest(
HttpContext
context)
{
Int32
empno;
if
(context.Request.QueryString[
"id"
] !=
null
)
empno =
Convert
.ToInt32(context.Request.QueryString[
"id"
]);
else
throw
new
ArgumentException
(
"No parameter specified"
);
context.Response.ContentType =
"image/jpeg"
;
Stream
strm = ShowEmpImage(empno);
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);
}
}
public
Stream
ShowEmpImage(
int
empno)
{
string
conn =
ConfigurationManager
.ConnectionStrings[
"Connection"
].ConnectionString;
SqlConnection
connection =
new
SqlConnection
(conn);
string
sql =
"SELECT empimg FROM empdetails1 WHERE empid = @ID"
;
SqlCommand
cmd =
new
SqlCommand
(sql, connection);
cmd.CommandType =
CommandType
.Text;
cmd.Parameters.AddWithValue(
"@ID"
, empno);
connection.Open();
object
img = cmd.ExecuteScalar();
try
{
return
new
MemoryStream
((
byte
[])img);
}
catch
{
return
null
;
}
finally
{
connection.Close();
}
}
public
bool
IsReusable
{
get
{
return
false
;
}
}
}
----------------------------------
Error:
context.Response.ContentType =
"image/jpeg"
;
No parameter specified
Reply
Answers (
5
)
multiple HTTP uploads
How to display data when i click on treeview node?