<h3 id="someMessage"></h3>
<button id="someButton">Click me</button>
<script> 
  (function () { 
    const { ipcRenderer } = require('electron');

    document.getElementById('someButton').addEventListener('click', () => { 
      ipcRenderer.send('doSomething', 'args'); 
    }); 

    ipcRenderer.on('showMessage', (event, msg) => { 
      document.getElementById('someMessage').innerHTML = msg;
    });
  }()); 
</script>

public IActionResult Index()
{ 
  Electron.IpcMain.On("doSomething", (args) => 
  { 
    var mainWindow = Electron.WindowManager.BrowserWindows.First(); 
    Electron.IpcMain.Send(mainWindow, "showMessage", "Hello!"); 
  }); 

  return View(); 
}

javascript:document.querySelectorAll('table.af-userid-27411').forEach(e => e.style.display = 'none')