Open local html file from link in page loaded in WebBrowser
Question
I have a WebBrowser control which I use to display dynamically generated html pages with different info, including html links. Pages are loaded using webBrowser.DocumentText.
If I include a link to an external webpage, eg " https://somesite.com/file.htm " the link works fine, but if I link to a local file, eg "file:///c:\\temp\\file.htm", nothing happens when I click the link.
If I grab the source from the page in the WebBrowser control, save it as an html file and open it in Edge, the link works fine.
I've been browsing through a ton of webpages trying to find a solution but no luck, none of them seem to address this specific problem which I find strange, as it would seem like a common problem.
string htmlCode = "<html><body><a href=\"file:///c:\\temp\\testlink.htm\">link</a></body></html>";
webBrowser1.DocumentText = htmlCode;
1 answers
solution1
1 2019-09-17 19:29:10
It would be more helpful if you provided a sample that reproduces the problem you're seeing, but here's one way to do it.
The code below writes two files: start.html , which contains a clickable link to the second file, end.html , which just contains some text.
Drop a webbrowser control onto the form and run the code. The first page will load with a link you can click, and when you click it, the second page loads.
public Form1()
{
InitializeComponent();
// Modify these with paths on your machine
var startPage = @"f:\private\temp\start.html";
var endPage = @"f:\private\temp\end.html";
// This will write the contents of the files above (so they exist)
File.WriteAllText(startPage, $"<a href=\"file:///{endPage}\">Click Here</a>");
File.WriteAllText(endPage, "You did it!!");
// Navigate to the first file so you can click the link
webBrowser1.Navigate(startPage);
}
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