Calling a .Net Function from Javascript

[rachelYedatop]

Hi @amaitland,
Thanks for all the help.
I tried the C # side to connect the Angular js (Angular1) side.
But it does not work for me. Maybe because of Js side? (to function: closeApp())
C#:

browser.JavascriptObjectRepository.Register("jsObj", new ScriptManager(this), isAsync: false, options: BindingOptions.DefaultBinder);
this.Controls.Add(browser);
browser.LoadUrl("https://.........");

ScriptManager:

 private Form1 mForm;
  public ScriptManager(Form1 form)
  {
      mForm = form;
  }

closeApp - the specific function:

public void closeApp()
{
    mForm.closeApp();
}

Js side:
window.external.closeApp(); or window.closeApp();

[amaitland]

Firstly if you just want to close the window then calling https://developer.mozilla.org/en-US/docs/Web/API/Window/close should work by default in WinForms.

[rachelYedatop]

Ok, you're right,
I have a many .NET side functions that worked well with winform,
but now with cefsharp I'm getting a little tangled...

[amaitland]

Your example only shows closing the form, so I always try to provide the simplest option. The code you've provided requires a number of changes.

• Use Async binding where possible
• The name you register the object with will be the object name in JavaScript.
• Legacy javascript binding automatically creates the object in each V8Context

Read https://github.com/cefsharp/CefSharp/wiki/General-Usage#3-how-do-you-expose-a-net-class-to-javascript for further information.

browser.JavascriptObjectRepository.Settings.LegacyBindingEnabled = true;
browser.JavascriptObjectRepository.Register("jsObj", new ScriptManager(this), isAsync: true, options: BindingOptions.DefaultBinder);

window.jsObj.closeApp();

public void closeApp()
{
  mForm.BeginInvoke((Action)(() =>
  {
      mForm.closeApp();
  }));
}

[amaitland]

If you require assistance with porting from another browser then I'm happy to provide paid consulting services via GitHub Sponsors

[rachelYedatop]

Thanks @amaitland,
You really are a champion it works good.