Possible Duplicate: How do I Validate the File Type of a File Upload?
i would like to add file extension for filtering to file upload control in my asp.net page.and do validation on client side.how can i set file extension dynamically..ex:images only(.jpg;.png;*.gif;).
Is there a way to specify a file extension for ASP.NET upload control? E.g. I want to upload images with jpg and png extensions only.I can implement this easily for a windows application, but struggling with ASP.Net
View 3 Replieshow to filter the file type with the file upload control in asp.net & c#.net for example on clicking the browse button of the file upload control ,it should open browse file dialog with only excel file types.
View 3 Replies"^(([a-zA-Z]:)|(\{2}w+)$?)(\(w[w].*))+(.wav|.MP3|.gif)$"
this s d the expression i used for filtering file types in upload control..
but this's not working..
any working solution?
I was referring muddasar's one of the article for the validation. Below is my code and i am trying to validate the file upload selected file format on the submit button. I have 4 upload control and fu1 is mandatory field and others are not mandatory fields. Though i need to validate all the four uploads if the files have been selected. My full sample code is below for easy testing,
<asp:FileUpload runat="server" ID="fu1" />
<asp:Label ID="lblMessage1" runat="server"></asp:Label>
<asp:FileUpload runat="server" ID="fu2" />
<asp:Label ID="lblMessage2" runat="server"></asp:Label>
[code]...
I am doing slight mistake on the return to the main function. if i test indvidual function it works fine. whereas if i include the 4 functions in one function with the return statement, it's not validating. goes to to the server.
How can i filter the file in the dialog box
View 3 RepliesI need to get an image url using FileUpload Control. When i do it in the explorer it shows all files to select. But i need to show only ".jpg,.gif" files. How can i do it.
View 3 RepliesWhen selecting an image for an item in file upload control of ajax toolkit (AsyncFileUpload), the only files that should be displayed are ".jpg, .jpeg, .gif, .bmp, or .png".
I currently can see every type of file.
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.
how to upload and save files to oracle database, and view file using C# .net and can upload one or more files in one webform.
View 1 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 File Uploader to upload files. It is working fine. But I receive the page can not be displayed when I try to upload a file>4Mb in size.
View 1 RepliesI have a problem wit my project, i wanna upload a clip wit .flv, .avi axtension to my server What do i do to archieve it?
View 5 Repliesi have problem in uploading 2gb video file using file upload control in asp.net, i have limit the maximum file size in web config file then also it shows error any remedy for that...
View 1 RepliesI want to upload a file without using the file upload control in asp.net.
View 1 RepliesI want user can save a file after click on a link.
I write the following code:
[Code]....
[Code]....
but save dialog box shows file without extension of file..
and file save on system without any extension...
Excel cannot open the file "Report.xlsx" because the file format or extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file
View 2 RepliesI have a file upload control on my page with a regular expression validator that handles the file format.
Users can upload files but I want the maximum WIDTH size to be 500px.
If any bigger I need to show a message advising the width is to great and stops them.
any link or thread or ASP.NET sample code to make an online book reader/Preview control (same as GoogleBook)
Is there is any 3rd party control available that can display the book with any file extension?
i have mapped *.xyz extension to my own custom handler in asp.net and can run it on Windows asp.net.
How can I do the same thing on mono (Linux/Apache - ubuntu)?
I have this in my web.config:
<httpHandlers><add path="*.xyz" verb="*" type="MyCustomHandler,...">...
I also added similar things to mod_mono.conf and several other files but still I get http 404 The resource cannot be found.
I have a scenario where my application is going to be publishing services that are consumed by both PC's and mobile devices, and I have a HTTPModule that I want to only perform work on only the mobile requests. So I thought the best way of doing this was to point the mobile requests to a different file extension and have the HTTPModule decide to process only if the request targets this new extension.
I don't need a custom HTTPHandler for the new extension; I want to program the services like a normal .ASMX service, just with a different extension.
First, can I do this? If so, how do I do it so that requests to my new extension are handled just like .ASMX requests?
Second, is this the right approach? Am I going about separating and managing the mobile vs. PC requests the wrong way?
i generated a zip file of xml file,,ie aa.xml.zip....but after downloading that file,i extracted the zip file,then i cant getting in the correct format of xml file with extension .xml...how will possible this.
View 6 RepliesAt the moment i get file extension of the file like :
string fileExt = System.IO.Path.GetExtension(filUpload.FileName);
But if the user change the file extension of the file ( for example user could rename "test.txt" to "test.jpg" ), I can't get the real extension . What's the solution ?
How can i get all files without file extension into an array. I will supply the folder path.
Is this possible using Directory.GetFiles() or DirectoryInfo.GetFiles()?? Is there any alternative way?
I am using ASP.NET C#.
in sql 2008 , itook a databse back up and i got message like "backup completed sucessfully".i gave the backup name as D123.
now the pblm is when i check that backup file, file name is coming without extension and not possible to restore also.
file name is D123 instead of D123.BAK and filetype is showing 03 instead of BAK
where is the problem?is it possible to restore this back up?