Porting Java espression to C#

Hello. Im porting a piece of code from Java to c# I have to port this java espression: `final DeviceListFragment fragment = (DeviceListFragment) getFragmentManager() .findFragmentById(R.id.frag_list); fragment.onInitiateDiscovery(); manager.discoverPeers(channel, new WifiP2pManager.ActionListener() {

                @Override
                public void onSuccess() {
                    Toast.makeText(WiFiDirectActivity.this, "Discovery Initiated",
                            Toast.LENGTH_SHORT).show();
                }

                @Override
                public void onFailure(int reasonCode) {
                    Toast.makeText(WiFiDirectActivity.this, "Discovery Failed : " + reasonCode,
                            Toast.LENGTH_SHORT).show();
                }
            });`

How does it translate ? Please help because I'm porting a non existing piece of code in Xamarin and this could help much the community. Thanks in advance, Max