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.
Related
Does anybody know how to specify a download location for specific file types when downloading them through the WebView2 control?
Example:
PDF files go to D:\PDF, and Excel files go to D:\Excel
As far as I know you can only specify a download location when using a WebClient programatically, which can only download from a specific url eg.
WebClient WB = new WebClient();
WB.DownloadFile("http://example.com/example.txt", #"d:\example.txt");
WebView is meant to be a WebBrowser control based on chromium, it will act like a web browser unless you directly modify it (source code).
So to answer your question, there is not a way to specify a download location for a specific file type using the WebView2 control.
You can however build yourself a downloader, which downloads files to a specific location from a url using the WebClient in C#.
I'm trying to download some PDF's using a WebBrowser. This URL contains an iframe with the src attribute set to this other URL, which in turn has a 302 redirect to this URL, which is a PDF file.
When I visit the first URL with a WebBrowser, it downloads and opens the file using Acrobat Reader. I would like to prevent this from happening because I'd like to automate the WebBrowser to visit many of these pages programmatically and don't want a bunch of Adobe Acrobat launching all over.
I have access to the DWebBrowserEvents2 and all of its events. One of the events getting fired was NavigateError, with the URL parameter pointing to the PDF file. I tried setting cancel to true, but the file was still being downloaded.
Is there any other way I can programmatically cancel the download?
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.
lately I got a problem on using .net WebBrowser control. when redirect to a file downloading, the WebBrowser control popup the SaveFileDialog, I don't know if there is a way avoid this to let me choose a filename and save it to some location.
Thanks for any helps.
You could handle the Navigating event, detect that it's a file download, make the request yourself with HttpWebRequest or WebClient, and cancel the navigating event within the handler.
You can install your own custom download manager by adding IServiceProvider to your WebBrowserSiteBase-derived class, which needs to be constructed in your webbrowser-derived class as the return value of the WebBrowser.CreateWebBrowserSiteBase virtual function.
In your download manager implementation you can write the file saving code. See https://code.msdn.microsoft.com/windowsdesktop/CSIEDownloadManager-8ab5d910 for an example to grab the download url. If the download url requires login, you need to grab session cookies. Check http://vbmhwb.sourceforge.net/ for an example.