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
Related
I use WebBrower of microsoft to log into a website. I have no problem with logging in. I don't have the downloadable file url because the file is generated automatically.
How should I download file with out Save As popup to show ?
Work with the DOM (document object model) of the website find your download link via traversing the DOM exposed by the browser control via it's property
Document
it is a tree of elements that your after-login page consists of. There should be some element that you should invoke click on it and then handle OnNavigating (https://msdn.microsoft.com/en-us/library/system.windows.forms.webbrowser.onnavigating(v=vs.110).aspx) event of the control to get the generated download URL.
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 been trying this and it does not seem like it wants to work out for me today. I want to have an hyperlink to a log folder which in IIS is enabled with directory browsing but asp.net does not like the link so it does not even send it to the client.
<asp:HyperLink ID="HyperLink8" NavigateUrl="~/logs/" runat="server"></asp:HyperLink>
The reason why I am doing this is that the log link is in the footer of the master page. I cannot control the virtual directory name so I cannot effectively use the anchor tag. Any one encountered this before ?
Thanks,
It probably is sending the link to the client, but without setting the Text value it will be invisible.
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.
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.