connect-to-running-app.md

title	page_title	description	previous_url	position
Connect to Running App	Connect to Running App	Test Studio is an innovative and easy-to-use automated web, WPF and load testing solution. Test Studio tests support essential technologies like ASP.NET AJAX, Silverlight, PHP and MVC. HTML5, Testing framework, functional testing, performance testing, load testing, exploratory testing, manual testing.	/user-guide/code-samples/wpf/connect-to-running-wpf-app.aspx, /user-guide/code-samples/wpf/connect-to-running-wpf-app	1

#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. This solution is applicable for both Test Studio Standalone version and the Visual Studio plugin.

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()