HybridWebView call C# from Javascript

Hey,

I have a HybridWebView like the MS example.

But my website is made with ASP Core, and I can't call C# Action from Javascript in my website.

So I ask if someone as already done this. And something which is weird is I did reverse I implement call javascript from C# and it works so I don't understand very well.

The code :

My custom render :

const string JavascriptFunction = "function invokeCSharpAction(data){jsBridge.invokeAction(data);}";
if (Control == null)
{
// Instantiate the native control and assign it to the Control property with
// the SetNativeControl method

            var webView = new Android.Webkit.WebView(_context);
            webView.Settings.JavaScriptEnabled = true;

            // Implement WebViewClient who receive notification and request in JS with personalize function => JavascriptFunction
            //webView.SetWebViewClient(new JavascriptWebViewClient($"javascript: {JavascriptFunction}"));
            webView.SetWebViewClient(new JavascriptWebViewClient(JavascriptFunction));
            webView.SetWebChromeClient(new JavascriptWebChromeClient());

            SetNativeControl(webView);
        }
        if (e.OldElement != null)
        {
            // Unsubscribe from event handlers and cleanup any resources
            Control.RemoveJavascriptInterface("jsBridge");
            var hybridWebView = e.OldElement as HybridWebView;
            //var context = hybridWebView.BindingContext as ViewModelBase;

            // Clean old action to execute in JS
            //context.CleanAllActionInJS();
            hybridWebView.Cleanup();
        }
        if (e.NewElement != null)
        {
            // Configure the control and subscribe to event handlers
            Control.AddJavascriptInterface(new JSBridge(this), "jsBridge");
            var view = e.NewElement as HybridWebView;

            //Control.LoadUrl($"file:///android_asset/Content/{Element.Url}");
            // Add Url to hybridWebview
            Control.LoadUrl(Element.Url);
        }


public class JavascriptWebViewClient : WebViewClient
    {
        private string _javascript;

        public JavascriptWebViewClient(string javascript)
        {
            _javascript = javascript;
        }

        /// <summary>
        /// When page is charged, execute JS
        /// </summary>
        /// <param name="view"></param>
        /// <param name="url"></param>
        public override void OnPageFinished(WebView view, string url)
        {
            base.OnPageFinished(view, url);
            view.EvaluateJavascript(_javascript, null);

        }
}

public class JSBridge : Java.Lang.Object
{
readonly WeakReference hybridWebViewRenderer;

    public JSBridge (HybridWebViewRenderer hybridRenderer)
    {
        hybridWebViewRenderer = new WeakReference <HybridWebViewRenderer> (hybridRenderer);
    }

    [JavascriptInterface]
    [Export ("invokeAction")]
    public void InvokeAction (string data)
    {
        HybridWebViewRenderer hybridRenderer;

        if (hybridWebViewRenderer != null && hybridWebViewRenderer.TryGetTarget (out hybridRenderer))
        {
            //var context = hybridRenderer.Element.BindingContext as ViewModelBase;

            // Depending if pass or not data
            if (!string.IsNullOrEmpty(data)) hybridRenderer.Element.InvokeAction(data);
            else hybridRenderer.Element.InvokeAction();
        }
    }

}

So when I use this in my website the way I think is to do : invokeCSharpAction(mydata) in a JS function.

Thanks