Web Forms :: File Upload - Posted File Is Nothing?
Aug 10, 2010
I am using VS-2005.
In my website I have used the html input control with type=file.
The problem is that when I place this control inside an 'UpdatePanel' the 'PostedFile' property becomes 'Nothing' on postback. So in order to get things working I have removed the 'UpdatePanel' and things are working fine.
However, I am interested to know what kind of workaround is required if I were to use an 'UpdatePanel'? In one of the threads here I found that we need to set a 'PostBackHandler' for the update panel. I have no idea how to implement this. Does it refer to 'AsyncPostbackTrigger' or 'SyncPostBackTrigger'?
my project is in c sharp and must upload pictures to MySql DataBasethe uploadfile controle is included in asp form that i made but the problem is that the uploadfile always get the Postedfile = null i tried to use html input file but the same problem still @ Page Language="C#" MasterPageFile="~/MasterPageB.master" AutoEventWireup="true" CodeFile="test.aspx.cs" Inherits="Add_Pictures" Title="Untitled Page" %> <%@ MasterType TypeName="MasterPageB" %> <%@ Register assembly="MyFormView" namespace="MyFormView" tagprefix="asp" %> [code]...
I have an ASP.NET file upload control which sits as part of a form. The file upload control is on the content page while the form definition is on a master page across the site. I've added multipart/form-enc to the form on the master page.I'm using jQuery to submit the form as I show a dialog box from jQuery UI.When I post, no file is returned to the server. The file upload control has no file and HttpFileCollection is empty.
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 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 have an asp.net panel having various controls including gridview. I have converted this panel into pdf and attached it as an email attachment using memory stream. Everything is working fine. Now I have an File upload control outside panel through which I have to attach a file and send it in mail along with the already attached panel. But I am unable to figure out how to do it.
I am using a third party applet which enables a user to paste a screen shot into it and it posts the file data to an upload page. I am pretty new to asp.net (VB) and wondered if I could use a Generic Handler to read the post data and save the file to disk or just a normal web form to do this? All the examples I have received with the applet are in php of which i have had no experience coming from a Classic ASP background.
i 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...
I am using asp.net 3.5 file upload control. I can browse the files when click the Browse button. Same time I can't browse the file when enter key is pressed while file upload control is in focus. I am using master page. I am in urgently need of this.I want to browse the files when enter key is pressed while upload file controll is in focus.
i have a page that uploads a file, shows what files are availeble in a gridview and allows the user to donwload or delete the files. When i upload a file that file dont shows up in the gridview i need to reload the page to see the file. Theres any command in C# to do that? like when i click to save the file it saves d file and it does a page reload.
i have used file upload on one of my web page..the file path is not shown in google chrome..rest in all browser the path is shown..in google chrome only the file name is shown and not the whole path..i want the path to be shown in google chrome
I am planning to create a web page with the name of the student, course,pic and the resume to be uploaded by the user for specified students...
If I upload the resumes of students with same name how to differentiate. Looking for creating a name of the file name randomly as next I'm planning to retrieve the resume via search function to download and view the resumes....
Saving the resumes with same name with differentiate or randomly to save the files with new file name....
I hv a file upload control which save files in folder upload_html. When I upload file of same name which already exists upload_html folder it does't replace that file.........
I want that file to be replaced from that folder.............
Is there a way to add a file upload progress bar to the existing .net file uploader? I have an uploader on my site that has all kinds of things tied to it that I can't change to use an AJAX uploader. Or as far as I know I can't. So I was wondering if anyone knew how to add the progress bar to the asp.net uploader.
is it possible to automatically populate a file upload control's file for automated testing and server stress. I have one upload control (that simply brings up the browse and selects the file) and a button that uploads the selected fileupload control's file. Is it possible to give the file upload control a file pather "C:myImage.jpg" and submit the file by pressing the upload butto:
I'm developing a httpHandler, in my source code if some conditions aren't met i would like to stop uploading file to the server ( for example file extension is not allowed)
When I try to quit ProcessRequest function with return null;, asp.net tries and uploads the file automatically before I quit the httpHandler...
How can I stop asp.net to automatically upload posted files?
Here is the list of thing I've tested so far and no luck:
public void ProcessRequest(HttpContext context) { var worker = (HttpWorkerRequest)provider.GetService(typeof(HttpWorkerRequest)); .......... worker.CloseConnection(); context.Response.End(); Environment.Exit(0); return null; }
I want to access one image file residing in C: of the client's machine. I know with the help of file upload control (or say input type=file), this would be easy. Due to nature of my application (Its a KIOSK application), user is not expected to select file. I am just wondering how should I implement reading file without using file upload control. I want to store this file in Images folder of server. I am beginner to WCF. Should I look towards WCF?
I'm trying to use below simple code for ajax postback. With file upload, neither javascript the "function startRequest" ever triggers, the file control shows null value somemore.Earlier I had Update progress which didn't work with file upload ever so I removed it. Now I just want to disable the button as the file is uploaded and its inputs are processed in the background. Once the response comes back, the "submit" button is re-enabled.But the file-upload with Updatepanel doesn't work at all. What am I doing wrong,
