Open special section of a local HTML file in default browser-CodePudding

I want to open the documentation, which is stored in a single local html file, when the user clicks on certain wpf controls. Normally, the file can be navigated using HTML sections, and links like file:///C:/Users/uname/Desktop/Tool/DOCUMENTATION.html#section work (page is automatically scrolled so the section is in view) when I copy them into the address field, but when I try to open the browser by starting a new process using that same URL, the section at the end always gets removed and the page is shown from the top. This is the code I use to open the browser:

Process.Start(new ProcessStartInfo
            {
                FileName = "cmd.exe",
                Arguments = "/C start "   "file://"   AppDomain.CurrentDomain.BaseDirectory   "DOCUMENTATION.html"   "#"   section,
                WindowStyle = ProcessWindowStyle.Hidden,
                CreateNoWindow = true
            });

I first tried to open the file directly as a new process (Process.Start("path\to\file.html")) but I obviously cannot auto-navigate to sections that way.

Is there any way to achieve this "focus" on a certain section?

CodePudding user response：

Back in 2010, this question was answered as follows (in VisualBasic):

    Dim BrowserRegistryString As String = My.Computer.Registry.ClassesRoot.OpenSubKey("\http\shell\open\command\").GetValue("").ToString
    Dim DefaultBrowserPath As String = System.Text.RegularExpressions.Regex.Match(BrowserRegistryString, "(\"".*?\"")").Captures(0).ToString
    Dim LocalURL As String = "file:///C:/users/matt/desktop/page.htm#test"
    Process.Start(DefaultBrowserPath, LocalURL)

Migrated to C#, by Jakob Tinhofer:

string val = Registry.ClassesRoot.OpenSubKey(@"\http\shell\open\command")!.GetValue("")!.ToString()!;
pathToDefaultBrowser = val.Substring(1).Split('\"')[0];

The cmd shell does not pass the #test anchor tag, because the tag does not belong to the object to be started by the shell. Therefore, you probably have to explicitely start a browser. Either you encode your favorite browser, or you extract the default browser from the registry as shown in the example.

If you would prefer firefox or chrome, you can simply use:

cmd.exe /C start firefox file:///C:/users/matt/desktop/page.htm#test

cmd.exe /C start chrome file:///C:/users/matt/desktop/page.htm#test

Windows does know where to find them. But this does not work for every browser.