Web Forms :: Restrict File Upload Control To Video Files Only
Jun 18, 2010What is the best way to restrict a file upload control to only accept video files only ?
View 3 RepliesWhat is the best way to restrict a file upload control to only accept video files only ?
View 3 Repliesi am using file upload, i wanted to restrict the files showing in the dialog box to images only. That is 'Files of Type' in the dialog box should be .jpg,.jpeg,.gif,.bmp,.png
View 4 RepliesI have a file upload control in which i want to restricr the users not to upload more than 1mb file. Is it possible using custom validator or any other code. I want to raise validation before any postback happends.
View 2 Repliesi am trying to upload files through the ASP.NET File Upload control.
Every thing is working fine, except for the fact that when i try to upload the file on the server i am getting an error: (probably some authorization exception).
do i need to give some rights to the upload up there on the server. If so then for which account and do i need to restart the server after giving rights?
i am using file upload control to upload the files in asp.net with vb.net as code behind. am storing the files in my local drive. my doubt is, how shall i read those file using asp.net application.
View 1 RepliesI need to figure out a way to prevent users from uploading a couple file types in my vb.net page. How can I prevent users from uploading .msg or .gifs during a file upload?
View 3 RepliesI know the asp.net file upload control only allows users to select one file at a time, however i am looking for another way using asp.net to allow the users to select multiple files?
View 1 RepliesWe are going to start accepting resumes online but I need to know if the uploaded files will be virus scanned before I park them into the database. I thought this would be a server thing but the server admin and the security guy both said they didn't know. We already have a firewall and antivirus software, I just want to know how things work with native ASP.Net controls and not a product to try.
View 2 RepliesHow to Upload Video file in VS 2008 3.5
View 5 RepliesI am using a Aynchronous file uploader control to upload files.when I click on browse file button it opens a default dialog box. But i want to open it for a folder which is created by me on my system is any way to do this.
View 3 RepliesIm using a file uploader to upoad files to a folder used for upload.But the problem is this folder is a linux folder. I have made it a shared folder so that I can access from windows by samba. So, file transfer is successful when I'm using os but when I try to upload something from my websites uploader to this folder, this process is not successful. I have given all permissions to this folder.Don't know whats the problem.I have used both type of slashes for directory but still it is not successful.
View 4 RepliesI am using FileUpload control to facilitate Image file upload on my website. I want to restrict a user to upload only Image file. I am using
if (fupFirmLogo.PostedFile.ContentType == "image/Jpeg")
{
}
to check if the file is a image or not. I want to allow all image extensions like PNG, GiF, Jpeg, tif , BMP etc. How should I do it.
I'd like to allow users to upload a .pdf file via the file upload control (if that's the best method), save the file to the db and then retrieve it so they can click on a link and open the .pdf they've uploaded. I've been looking for a tutorial on how to do this but keep running into methods of saving the file directly on the server in a directory, not in SQL server (using Linq and VB by the way)
View 4 RepliesI want to limit the allowed uploaded file types to images, pdfs, and docs. What is the recommended way to approach this?I assume checking the file extension alone is not enough, since an attacked can change the file extension as he wishes.I also thought about checking against MIME Type using PostedFile.ContentType.I still don't know if this is adding any further functionality than checking against file extensions alone, and if an attacker have and ability to change this information easily.This is basically for a course management system for students to upload assignments and teachers to download and view them.
View 2 Replies[URL] .... I am referring to the link given mentioned above, i want to save image details into database of each file, if i select two files i want to save filename in database in each row. ist file in 1 row , second file in next row with file name.
View 1 Repliesupload the vedio file in sqlserver database using asp.net c# .
View 4 RepliesI have a async file upload control and I am doing client side validation for Image."OnClientuploadstarted" I am doing the client side validation.My validation is working fine but my problem is that the file upload control text box goes green (i.e file is loaded on the server) even if the validation fails which is I dont want.What I want is when the client side validation fails the file does not gets loaded on the server and the Async file upload textbox does not goes green.I have goggled but have not found a suitable solution.
View 4 RepliesI want to upload files to the web servers from the client machines.
Can i upload a file on a network share folder using file upload control?
I would like to create a share folder on a file server sitting next to the web server. If i upload the file from the network share folder instead of uploading it from the client machine does it make any difference?
Will the file be stored in a temporary location before copying to the final destination? Where will be the file stored in this case of uploading it from share folder?
I am using the async file upload control to upload to a image file. I want the user to upload only jpg files. And for that I am checking the uploadedfile content type in server side, after the upload complets. I wanna check this, before upload starts. There is one javascript method
function startUpload(sender, args){}
but how to access the content type of the file selected by user.
I am using DotNetNuke and I have posted this in their forum. But it is more appropriate here. I am trying to upload a 13 MB video file to my site ( a .flv file) using the file manager function under the host login. I understand that .NET limits the upload size to 4 MB for security reasons. In accordance with other posts here I added this code to my web.config file to allow bigger upload.
<httpRuntime maxRequestLength="51200" enable = "True"
I added it in the system.web section. Now, I still get this error:
"An error has occurred.DotNetNuke.Services.Exceptions.PageLoadException: Maximum request length exceeded. ---> System.Web.HttpException: Maximum request length exceeded. at System.Web.HttpRequest.GetEntireRawContent() at System.Web.HttpRequest.GetMultipartContent() at System.Web.HttpRequest.FillInFormCollection() at System.Web.HttpRequest.get_Form() at System.Web.HttpRequest.get_HasForm() at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) at System.Web.UI.Page.DeterminePostBackMode() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint,
Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace.
i have a fileUpload in my web page but it's not supporting all files eg:
when i browse xls file it's working for small size files but when i go for a little bigger files let's say 50-60k it won't work and will give me an offline web page, i have tried the input HTML on server mode and still having the same problem.
I would like to restrict what they see in the file upload dialog, which is set to "All Files" by default. I understand how to validate that they only uploaded a certain file type, that is not the question here. I would just like to know how to default the file type in the file selection dialog.
Is there any way to change this to "PNG only" or "*.png"?This is using AsyncFileUpload in the ASP.NET AJAX Control Toolkit.
i am building a member management site for a sports club, i have all the usual feilds
lastName, firstName, address1, address2, address3 ....
but they also want a photo
when i first made the DB i used access 2010 which uses the 2007 file type which supports attachments, however asp.net doesnt support the 2007 format. and the 2003 file type doesnt support attachments, i assume i use the OLE object data type but i have no idea how i get my aspx page "new.aspx" to upload an attachment. plus i want to restrict the file type to *.jpg
Iam using a file upload control for uploading files in my asp.net application. iam using the following code to impersonate the users who do not have permission for the files to upload. The code works fine for all the files, but it is not working for the files which are in desktop.
Code in .cs file:
System.Security.Principal.WindowsImpersonationContext impersonationContext;
impersonationContext =
((System.Security.Principal.WindowsIdentity)User.Identity).Impersonate();
//Insert your code that runs under the security context of the authenticating user here.
impersonationContext.Undo();
In web.config iam using the following:
<identity impersonate="true" />
I am selecting the file in the file uploader and when i press the button,the page gets postbacked and the selected files in the file uploader gets removed. I need to remain the selected file in the file uploader even thought the button clicked.
View 1 Replies