Webbrowser Control Downloads

Question

I was wondering if there was a way to get a download before Internet Explorer pops up to download a file with the web browser control. I looked around the internet but couldn't find the answer. For instance when you create a web browser using the web browser control and you go to a downloadable link IE pops up with the download, I want to have my own form pop up with the download so i can handle the download myself.

Answer 1

Hello,

Please, take a look at this: http://msdn.microsoft.com/en-us/library/system.windows.forms.webbrowser.filedownload(v=VS.100).aspx

If it's helpful, let me know, since I'd really could use it myself. Unfortunately, I have no VS in my work machine to test it...

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hth,
Marcelo
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Answer 2

It does tell you when the control is attempting to download the problem is that it pops up every time the browser navigates because as the browser navigates it is downloading web pages. I need something that will only catch file downloads and cancel the IE download popup, I'm pretty sure if i got the code to catch the download i could stop the IE popup with e.Cancel = true;

Answer 3

Yes you need to install a download manager. There is no wrapper in Windows Forms so you need to port the native IDownloadManager interface and hook it to your webbrowser site. 

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Answer 4

I don't understand how that answers the question, I have a Web Browser already, useing the webbrowser control. What i was trying to do was make a download manager for the web browser instead of using the one that comes with the web browser control.

Answer 5

That's what I am suggesting. Let me reiterate.

The documentation of IDownloadManager says you can hook up your own download manager that is effective in your webbrowser control host process by implementing IServiceProvider in the control site and implement QueryService to return an IDownloadManager object when asked for the service.

In Windows Form's Webbrowser class, a control site is created for you by default, but you can override the control site by create your own WebBrowserSiteBase class and override the WebBrowser.CreateWebBrowserSiteBase Method.

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Answer 6

Sheng,

you mean something like this?

http://www.dotnetmonster.com/Uwe/Forum.aspx/dotnet-interop/8051/IDownloadManager

 

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Hope this helps, Marcelo

Answer 7

That's the managed version nof IDownloadManager. You need to implement the interface to do the actual downloading.

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Answer 8

Sorry, missed that. Anyway, I believe that if Steve82291 bing or google for IDownloadManager C#, he'll get the stuff he's looking at.

Thank you for helping. In the end, I'm also benefiting from it :-)

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Hope this helps, Marcelo

Answer 9

Hi, Sheng JIang do you have any sample implementation of idownloadmanager, i find very little code on the internet and i need its full code so i can understand and change it my way

Answer 10

Hi, Sheng JIang do you have any sample implementation of idownloadmanager, i find very little code on the internet and i need its full code so i can understand and change it my way

Hello Shen Jiang, 

i would love to see a working example. I got to a point where i have a custom IDownloadManager and i am getting a url from the webbrowser. In my case the url is like .download.php as the file is prepared on the fly after i press a button. I need to be able to get the file even when i do not have an exact link.

Answer 11

you need to read the Content Disposition header when the downloading starts. check CcsDLMan::Download in csexwb source code. 

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Visual C++ MVP