C# Webbrowser Control Prevent File
C Tutorial for Beginners - Learn C programming in simple and easy steps starting from basic to advanced concepts with examples including C Overview, language basics. I'm developing a C# application to use the Visual Studio WebBrowser control and download documents from the web. (I'm using the Extended WebBrowser control supporting.
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I'm using a WebBrowser control to navigate to a website, click a checkbox on a form, then click the start download button. The Navigating event fires and shows 'sort of' that the next thing that will happen is a PDF is downloaded, but I can't figure out how to: a) prevent the file save/open/cancel dialogue from appearing b) download the presented file to a byte The website I'm hitting is implemented dyanmically so there's no way to tap a particular url directly. I've looked everywhere and don't see how this is accomplished.
I would think that the FileDownload event would have all the information to pull the file and prevent the UI interactions, but this is not the case. There should be a FileDownloadEventArgs class with MimeType, Length, and all the other general download information coming from the header.
Thanks, David C. The best I can see is this. After the startDownload is clicked, I call DoEvents The FileDownload event is fired twice with no discernable information about the coming file - the browser looks to be in the same state as before the click - the EventArgs is empty If I skip through both of the event calls, the open/save/cancel dialogue appears I'm calling bug or poor implementation here.
Windows nt 2000. I don't think I'm missing anything.I'll just have to figure out another way. I can see the form fields in Fiddler.
CheckedBoxValue=notChecked&sortedBy=null&lang=DINO&dosnum=90008484&fromIFW=fromIFW&selectedTab=ifwtab&fromIfwtab=fromIfwtab&isSubmitted=isSubmitted&sortedByDate=D&noOfDocumentsSelected=1&noOfTotalPagesSelected=34&runModetoServlet=PAIR&publicselectedSearchOption=&dosnum=90008484&sels=000000&c1=AF%2FD I can use this to send a direct call using WebClient or something and see what happens. Will report back on progress.I think this is important to know, that's why I'm being detailed. The problem is that I never see a file url.I see the page url and the form data is submitted (I can see this in Fiddler), but the browser control never seems to be aware of the resulting file. The website sets some hidden fields, sets the action to a different server side url, then submits. The result doesn't seem to come back through the web browser control properly. If you have a second. Clear the captcha, search for 90009459 by Application and click on the Image File Wrapper tab.
C# Web Browser Control User Agent
You can see the page I'm trying to hit (it's public data so there's nothing sketchy with what I'm doing) I locate a line in the table, find a non-disabled checkbox, selected it (through a dom invoke (click)) and then do the same for the startDownload button (invoke(click)). It could be a timing issue too.maybe I need to wait and DoEvents before trying to preempt the Navigating event.
Anyway - if you have a moment and any thoughts, I'd appreciate it. Thanks, David C. The best I can see is this. After the startDownload is clicked, I call DoEvents The FileDownload event is fired twice with no discernable information about the coming file - the browser looks to be in the same state as before the click - the EventArgs is empty If I skip through both of the event calls, the open/save/cancel dialogue appears I'm calling bug or poor implementation here.
I don't think I'm missing anything.I'll just have to figure out another way. I can see the form fields in Fiddler. CheckedBoxValue=notChecked&sortedBy=null&lang=DINO&dosnum=90008484&fromIFW=fromIFW&selectedTab=ifwtab&fromIfwtab=fromIfwtab&isSubmitted=isSubmitted&sortedByDate=D&noOfDocumentsSelected=1&noOfTotalPagesSelected=34&runModetoServlet=PAIR&publicselectedSearchOption=&dosnum=90008484&sels=000000&c1=AF%2FD I can use this to send a direct call using WebClient or something and see what happens. Will report back on progress.I think this is important to know, that's why I'm being detailed.