I need some help, I have FileUpload control on my asp.net page and Image where I show image which is uploaded on server. What I want that Image show what I choose when I click on Browse in FileUpload control before I upload on server. How to achieve that ?
You will need to use some sort of Flash/Silverlight/Java control that can access the file system and show a thumbnail of the selected file. What you want is not possible otherwise, without uploading the file to the server first.
I think you must upload file to server asynch. before saving by user.
Related
I would like to know if its possible to upload files in RadAsyncUpload control from codebehind.
Instead of pressing "Select" button of RadAsyncUpload control and selecting files and uploading it, I would like to upload a list of files present in a directory into RadAsyncUpload control from codebehind.
If we can upload files from code behind, is it possible for you to show me a demo.
Please note, i have RadAsyncUpload control as a usercontrol registered in a page.
Thanks.
The upload process through the codebehind is not allowed.
RadAsyncUpload is based on the HTML input type=file element, which allows to upload files only from the client's machine. The user is allowed to select a file from his/her machine and upload it through the select file dialog of the input element.
I have a FileUpload control in my ASP page. Once I choose a file from disk it will display the full path C:\users\star\one.jpg on its textbox.
<asp:FileUpload ID="filUpload1" runat="server" />
Then I have done some validation clicking button. As result of that button click event it will occur page refresh. And it will clear that file path on control.
How Can I display FileUpload full path after page refresh?
I have tried ViewState ,However it dosn't allow me to store full path itself. Please help me.
This is not possible.
Asp.net uses html forms to send its data. Due to browser security constraints and user privacy issues, the full path is not sent to the server.
However on the next postback that occurs, the full file does get uploaded to the server.
Using the FileUpload control, the contents of the file are only available on the first postback after the user selected the file.
What you should do is save this file at that time, and make a note of it in the ViewState(Where you saved the file on the server).
When when final submit occurs, you can use the file that is already uploaded on your server.
you have interessant article on this link
http://www.ironspeed.com/articles/Maintain%20File%20Upload%20Control/Article.aspx
I have url like this
http://domainname.com/view/downloadfile?uname='ddd'&id=4
if we type the above url (not exactly the same ) in browser address bar it prompts open/save file dialog
my requirement is in button click without open/save dialog i need to download the file to my local disk location
Actually am working with webbrowser control .button is outside the webbrowser control
You could use the WebClient.DownloadFile method. Or if you don't want to save the file on the disk but manipulate it in memory you could use the WebClient.DownloadData method.
Requirement: I have an ASP.NET application where a page has data displayed in gridview. This form also has a textbox which takes filepath as input, with a save button beside it. Now when the user clicks on save the csv should save it on client machine at the path the user entered.
I tried opening up a SaveAs Dialogbox using the "Content-Disposition attachment filename". But it always opens up on its default path. Is there a way to open up this SaveAs Dialog on user-specific path.
Else is there any other way of creating file on server and copying it to client machine?
Please suggest.
-Justin Samuel.
This cannot be done, because of security restriction. Let the user download the CSV and choose the location on his own.
If you are trying to force the download to always give a Save As, you should set the content-type to application/octet-stream. However, it will always be up to the user to decide where that file is saved and that is as it should be for security reasons.
hai friends
I am using a file upload control to upload the files if the user browse and upload the file. after uploading the path gets disappears. i should be maintain there itself. how?
Well, this is the default behavior of the browsers for security reasons
have a look at MS support site for IE http://support.microsoft.com/kb/266087
Edit
In your code behind you can try something like
fileUpload.Attributes.Add('value',filename);
see if this works.