The website JS in. Net core cefsharp chromium WebBrowser calls the C method in winfrom program

background ：winform+CefSharp To open browser website development , Fore and aft end separation , Back end webapi, When you need to log in to the website API Submit client mac Address ;

solve ： Called when the website logs in winform Medium method , Method to get the client mac Address before requesting webapi; The following shows how to implement in js Invoking background method in middle note :

Background initialization cef when ：

// register JS Classes that can be called , After calling ,js In the initialization “ CefSharp.BindObjectAsync('googleBrower');” after , You can call the registration method directly “googleBrower.postTest('admin','11111',callback);”
chromiumWebBrowser1.JavascriptObjectRepository.Register("googleBrower", new ScriptCallbackManager(this), options: BindingOptions.DefaultBinder);

among googleBrowser It's Jean JS A class is called ：

 public class ScriptCallbackManager
    {
        Form _form;
        public ScriptCallbackManager(Form form)
        {
            _form = form;
        }
   public void PostTest(string username, string pwd, IJavascriptCallback javascriptCallback)
        {
            Task.Factory.StartNew(async () =>
            {
                using (javascriptCallback)
                {
                    string response = $"Hello,{username}---{pwd}---networkCard:{NetworkCard()}";
                    await javascriptCallback.ExecuteAsync(response);
                }
            });
        }
        // Get network card information 
        public string NetworkCard()
            {
                    try
                    {
                        string MoAddress = string.Empty;
                        ManagementClass networkAdapter = new ManagementClass("Win32_NetworkAdapterConfiguration");
                        ManagementObjectCollection adapterC = networkAdapter.GetInstances();
                        foreach (ManagementObject m in adapterC)
                        {
                            if ((bool)m["IPEnabled"] == true)
                            {
                                MoAddress = m["MacAddress"].ToString().Trim();
                                m.Dispose();
                            }
                        }
                        return MoAddress;
                    }
                    catch
                    {
                        return string.Empty;
                    }
                
            }
}

Finally at the front desk JS call ：

CefSharp.BindObjectAsync('googleBrower');// Initialize the method class to call 

googleBrower.postTest('admin','11111',callback);// Call the relevant method 

It should be noted that , Background methods may start with a capital letter , however JS The middle note is changed to lower case when calling. ！！

In this way, the foreground information can be passed into the back-end method , There are other operations in the back-end method ;