How to wait for all processes on Background worker to complete

[malique84]

I am having troubles with a background worker that will have processes running. If the last process started on the background worker completes it calls the RunWorkComplete d method, even if all of the processes aren't complete. I want to start all of the processes at once, and wait until all are finished before it is complete:

private void TestRunning_DoWork(object sender, DoWorkEventArgs e)
        {
            procIDs = new int[CHKD];
            int counter = 0;
            foreach (TreeNode exe in myqueue)
            {
                string exe2 = (string)exe.Text;
                string FullPath = "";
                //Make the tests run in background so the app doesn't pause
                {
                    var TestSettings = new ProcessStartInfo(exe2, RunTestBuilder);
                    TestSettings.RedirectStandardOutput = false;
                    TestSettings.UseShellExecute = true;
                    TestSettings.CreateNoWindow = true;
                    TestSettings.WindowStyle = ProcessWindowStyle.Minimized;
                    if (exe.Parent == null)
                    {
                        FullPath = di.ToString();
                    }
                    else
                    {
                        FullPath = di.ToString() + "\\" + exe.Parent.Text;
                    }
                    TestSettings.WorkingDirectory = FullPath;
                    RunTests = new Process();
                    RunTests.StartInfo = TestSettings;
                    RunTests.Start();
                    procIDs[counter] = RunTests.Id;
                    appID = RunTests.SessionId;
                    counter++;
                }
            }
            RunTests.WaitForExit();
            if (TestRunning.CancellationPending)
            {
                e.Cancel = true;
                return;
            }
        }