[c#] Load local HTML file in a C# WebBrowser

In my app I have a WebBrowser element.

I would like to load a local file in it.

I have some questions:

1. Where to place the HTML file (so that it will also be installed if a user executes the setup)
2. how to reference the file? (e.g. my guess is the user's installation folder would not always be the same)

EDIT

I've added the HTML file to my project.

And I have set it up so that it gets copied to output folder.

When I check it it is present when run: \bin\Debug\Documentation\index.html

However when I do the following I get a 'Page cannot be displayed' error in the webbrowser element.

I use the following code to try to display the HTML file in the Webbrowser.

webBrowser1.Navigate(@".\Documentation\index.html");

Update on @ghostJago answer above

for me it worked as the following lines in VS2017

string curDir = Directory.GetCurrentDirectory();
this.webBrowser1.Navigate(new Uri(String.Format("file:///{0}/my_html.html", curDir)));

quite late but it's the first hit i found from google

Instead of using the current directory or getting the assembly, just use the Application.ExecutablePath property:

//using System.IO;  
string applicationDirectory = Path.GetDirectoryName(Application.ExecutablePath);
string myFile = Path.Combine(applicationDirectory, "Sample.html");
webMain.Url = new Uri("file:///" + myFile);

Windows 10 uwp application.

Try this:

webview.Navigate(new Uri("ms-appx-web:///index.html"));

1. Somewhere, nearby the assembly you're going to run.
2. Use reflection to get path to your executing assembly, then do some magic to locate your HTML file.

Like this:

var myAssembly = System.Reflection.Assembly.GetEntryAssembly();
var myAssemblyLocation = System.IO.Path.GetDirectoryName(a.Location);
var myHtmlPath = Path.Combine(myAssemblyLocation, "my.html");

Note that the file:/// scheme does not work on the compact framework, at least it doesn't with 5.0.

You will need to use the following:

string appDir = Path.GetDirectoryName(
    Assembly.GetExecutingAssembly().GetName().CodeBase);
webBrowser1.Url = new Uri(Path.Combine(appDir, @"Documentation\index.html"));

1. Place it in the Applications setup folder or in a separte folder beneath
2. Reference it relative to the current directory when your app runs.

What worked for me was

<WebBrowser Source="pack://siteoforigin:,,,/StartPage.html" />

from here. I copied StartPage.html to the same output directory as the xaml-file and it loaded it from that relative path.