Hi,
I am creating a news and events page on my Intranet site and I wish to
allow people to upload an image with there news to my site. The text and
image are all stored in an SQL database. I have been successful in uploading
Jpeg files and downsampling them to a size that fits the web site. My next
challange is to convert other common file types (BMP, GIF, TIF) to jpegs as
well. Can this be done using the image object in ASP.net, if so could
somebody show me some sample code. Is it better if I just stop people from
uploading formats other than JPGs. If so can some body show me sample code
of how to stop the unwanted files from being uploaded.
Thanks
Kenneth 2 2798
Hi Kenneth
Please have a look at this site: http://www.codeproject.com/csharp/do...nvertimage.asp
hope it helps.
Regards,
WeiChung
"Kenneth Keeley" <ke*******@hotm ail.com> wrote in message
news:ez******** ******@TK2MSFTN GP15.phx.gbl... Hi, I am creating a news and events page on my Intranet site and I wish to allow people to upload an image with there news to my site. The text and image are all stored in an SQL database. I have been successful in uploading Jpeg files and downsampling them to a size that fits the web site. My next challange is to convert other common file types (BMP, GIF, TIF) to jpegs as well. Can this be done using the image object in ASP.net, if so could somebody show me some sample code. Is it better if I just stop people from uploading formats other than JPGs. If so can some body show me sample code of how to stop the unwanted files from being uploaded.
Thanks Kenneth
Hi Kenneth,
Once you put any supported image type into an Image or Bitmap object, it is
easily converted to any other supported format, by using the parameters of
the Save method of the Image class.
To prevent files other than JPEGs from being uploaded, use some JavaScript
validation on the client to check the value attribute of the File Upload
element in the form. It will be a string containing the full path of the
file to be uploaded Use Path.GetExtensi on() to get the extension, and if it
isn't "jpg" don't allow the form to submit.
--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Neither a follower
nor a lender be.
"Kenneth Keeley" <ke*******@hotm ail.com> wrote in message
news:ez******** ******@TK2MSFTN GP15.phx.gbl... Hi, I am creating a news and events page on my Intranet site and I wish to allow people to upload an image with there news to my site. The text and image are all stored in an SQL database. I have been successful in
uploading Jpeg files and downsampling them to a size that fits the web site. My next challange is to convert other common file types (BMP, GIF, TIF) to jpegs
as well. Can this be done using the image object in ASP.net, if so could somebody show me some sample code. Is it better if I just stop people from uploading formats other than JPGs. If so can some body show me sample code of how to stop the unwanted files from being uploaded.
Thanks Kenneth
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Suzanne |
last post by:
Hi all,
I'm attempting to save images (that are in jpeg format) to a database
column of type image. I've read over the Microsoft Knowledge Base
articles for this and I can get things working when the image is in a
gif format - but not when the image is in a jpeg format - I get the
error that the file can not be found (& I've checked - the file is
there)!
My code is :
|
by: Rock |
last post by:
Hi,all:
how to convert VBA #date# format (ex: #2004/3/6#) to C# code ?
here are vba code :
Dim objUserPerm As Office.UserPermission
Set objUserPerm = ActiveWorkbook.Permission.Add("user@domain.com",
msoPermissionRead + msoPermissionEdit, #12/31/2005#) a to c# ??
I don't know how to convert this code to C#? and I have already try
it use DateTime format, but it happen argument error. anyone have the
same problem ? ...
|
by: Neeraj |
last post by:
Hi
I have problem to make Bitmap from pixel data coming from Dicom which
have jpeg format.
which Transfer Sysntax is "1.2.840.10008.1.2.4.57"
IF any body have idea about that plz share with me
regards
Neeraj Kumar
|
by: solomon_13000 |
last post by:
How do I actually convert different video format (avi,mpeg,mp4, etc)
file to a flash format and view it as flash? People would upload their
video files on my server and my server will do the conversion
automatically to flash format. When people preview the video files,
they would see them in flash. I am interested to use visual c++ to do
the conversion. How is it done?
Your help is kindly appreciated.
Regards
|
by: Just D. |
last post by:
All,
Does anybody know some library to resize/convert images on the fly? I'm
especially interested in JPG/GIF/TIF images. Also maybe BMP, but not
critical. Are we having some kind of a standard, maybe freeware or open
source library for that?
The primary thing that I need is to decrease the image to show a small
version on the page. The original color image can be huge x000 by x000
pixels, but I don't need to load the whole image into...
| |
by: nirmalsingh |
last post by:
i am getting date format in string as 30-11-2006 05:59:44 PM . i want to convert in the format of yyyy-mm-dd hh:mm:ss to sore it in mysql database.
Help me with sample coding plz..
|
by: madhavarao |
last post by:
capture form to save into JPEG format in windows application uisng C#.net. But i want to save full form instead of active window. Thanks in advance
|
by: VinDiesal |
last post by:
Hi Buddies,
I want the Sample source code about How to convert Dss audio format to wav format in .net. Please anybody send the source code for this.
|
by: Academia |
last post by:
I have a vs2003 project (actually 44 of them) that I want to convert to
VS2005 format.
To fix a usercontrol file I created the Designer.vb file and moved the
Inherited and Class ( change to partial class) lines to it so it started
with:
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()_
Partial Class UserControl1
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |