Hello,

My company is currently evaluating purchasing an enterprise license of EO.Total. I am in charge of the engineering effort of that evaluation. Currently I am having an issue invoking C# and I hope that you can help me figure out what I am doing wrong. Thank you.

My JS Code:
controllerX.prototype.firePlayingStateEvent = function () {
eoWebBrowser.extInvoke("playing", null, null);
return 0;
}

My C# Code:
public WebViewApi(EOWebView webv)
{
_webView = webv;
_webView.JSExtInvoke += _webView_JSExtInvoke;
}
private void _webView_JSExtInvoke(object sender, JSExtInvokeArgs e)
{
switch (e.FunctionName)
{
case "playing":
CoursePlayingEvent?.Invoke(sender, e);
break;
case "error":
CoursePlaybackFailedEvent?.Invoke(sender, e);
break;
default:
throw new Exception("An invalid state was dispatched from CoursePlayer");
}
}

Message:
Invoking function 'firePlayingStateEvent' failed because channel is invalid.

StackTrace:
at EO.WebBrowser.WebView.a(String A_0, JSInvokeResult A_1, ar4 A_2, Boolean A_3)
at EO.WebBrowser.WebView.a(lq A_0, Action`1 A_1, Boolean A_2, Boolean A_3, String A_4)
at EO.WebBrowser.WebView.a(lq A_0, Action`1 A_1, Boolean A_2, String A_3)
at EO.WebBrowser.JSObject.a(String A_0, Boolean A_1, Object[] A_2)
at EO.WebBrowser.JSObject.InvokeFunction(String functionName, Object[] args)
at WebViewTests.WebViewTests.InvokeJs(String jsMethodToCall, Object obj, WebView webView) in E:\Source\Repos\TemplateDevelopment\TemplateDevelopment\WebViewTests\WebViewTests.cs:line 798
at WebViewTests.WebViewTests.<>c__DisplayClass21_0.<WebView_CoursePlayStateEvent_Test>b__0() in E:\Source\Repos\TemplateDevelopment\TemplateDevelopment\WebViewTests\WebViewTests.cs:line 787
at EO.Base.ThreadRunnerBase.c.c()

Great. Glad to hear that you found out the root cause and thank you very much for the update!