Session can´t find childWindow(s)

Hi,

i can´t find the child window of my windows application. I am using WPF. The windows are under the same processes and there is no splashing screen.

I´ve tried to transfer the solution of #99, but the WindowPopUpFinder throws an timeout error. I also gave back the window handles, but i just got 1 item, the application itself.

Here you can see the hierarchy. I am opening the mediaCollectionWindow with a MenuItem.

When I´m trying this:

            // Open menu 
            WindowsElement menu = _mainWindow.FindElementByAccessibilityId(MAIN_WINDOW.MENU_VIDEO);
            menu.Click();

            // Open modal window via finder
            WindowsElement openVideoWindow = 
(WindowsElement)menu.FindElementByAccessibilityId(MAIN_WINDOW.MENU_ITEM_OPEN_VIDEO);
            PopupWindowFinder finder = new PopupWindowFinder(_mainWindow);
            Thread.Sleep(2000); 
            string videoWindowHandler = finder.Click(openVideoWindow);

            // switch to window
            WindowsDriver<WindowsElement> videoWindow = 
(WindowsDriver<WindowsElement>)_mainWindow.SwitchTo().Window(videoWindowHandler);  

i get the timeout answer as “User-Unhandled”-Exception.

Here i also got an timeout-exception:

            // Open menu 
            WindowsElement menu = 
_mainWindow.FindElementByAccessibilityId(MAIN_WINDOW.MENU_VIDEO);
            menu.Click();

            // Open modal window 
            menu.FindElementByAccessibilityId(MAIN_WINDOW.MENU_ITEM_OPEN_VIDEO).Click();
            Thread.Sleep(2000); 
            
            // switch to window
            WindowsDriver<WindowsElement> videoWindow = 
(WindowsDriver<WindowsElement>)_mainWindow.SwitchTo().Window(MEDIA_COLLECTION.MEDIA_COLLECTION_WINDOW_TITLE);
            

And here i got just one item

            ReadOnlyCollection<string> windowHandlesBefore = _mainWindow.WindowHandles; 

            // Open menu 
            WindowsElement menu = _mainWindow.FindElementByAccessibilityId(MAIN_WINDOW.MENU_VIDEO);
            menu.Click();

            // Open modal window
            menu.FindElementByAccessibilityId(MAIN_WINDOW.MENU_ITEM_OPEN_VIDEO).Click();
            Thread.Sleep(2000);

            // Look for windows
            ReadOnlyCollection<string> windowHandlesAfter = _mainWindow.WindowHandles;

And here is the result

[dquist]

I ran into similar problem in a .NET Core 3 WPF project. No splash screen. WindowHandles would only return the main window handle even after child windows were opened. The parent/owner was set correctly and I verified with inspect.exe that the new window was in fact a child.

You can, however, interact with the child window elements through the WindowsElement API of the window itself. I was able to use this approach to open an ‘About’ window through a menu and then close it.

[Test]
public void TestAboutWindow()
{
    // Open About window through menu
    _session.FindElementByName("Help").Click();
    _session.FindElementByName("About").Click();

    // Close child window through WindowElement API
    var aboutWindow = _session.FindElementByName("AboutWindow");
    aboutWindow.FindElementByName("Close").Click();
 }

[naeemakram]

I’m sorry, I can’t say for sure since I haven’t tried on Windows Server 2016. Which version of WinAppDriver are you using? I remember someone had a problem finding windows using desktop session in recent stable release(1.1). If you’re using the stable release, try using the pre-release version i.e. 1.1.1.