Connect to a Running WPF Application

I would like to connect to an already running WPF application and execute the test there, instead of launching a new instance of the app.

Solution

When you Quick Execute or execute a Test List, a new instance of the app launches from its pre-configured location.

To work around this limitation, create a mock application to feed to Test Studio. Then insert a coded step as the first step of the test. Use the following code which closes the mock application and connects to the desired application if it's running. If not, a new instance is launched.

ActiveApplication.Quit(); 
var runningApp = System.Diagnostics.Process.GetProcesses().Where(p => p.ProcessName == "WPFHelloWorld"); 
 
if (runningApp.Count() != 0) 
{ 
    Manager.ConnectToApplication(runningApp.FirstOrDefault()); 
} 
else 
{ 
    Manager.LaunchNewApplication(@"C:\ApplicationFolder\WPFHelloWorld.exe"); 
} 
 
Manager.ActiveApplication.MainWindow.RefreshVisualTrees(); 
ActiveApplication.Quit() 
Dim runningApp = System.Diagnostics.Process.GetProcesses().Where(Function(p) p.ProcessName = "WPFHelloWorld") 
 
If runningApp.Count() <> 0 Then 
    Manager.ConnectToApplication(runningApp.FirstOrDefault()) 
Else 
    Manager.LaunchNewApplication("C:\ApplicationFolder\WPFHelloWorld.exe") 
End If 
 
Manager.ActiveApplication.MainWindow.RefreshVisualTrees() 
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