BlueSky.Commands.Tools.Package.InstallCRANPackageCommand.OnExecute C# (CSharp) Метод

        protected override void OnExecute(object param)
        {
            Window1 appwindow = LifetimeService.Instance.Container.Resolve<Window1>();
            try
            {
                appwindow.setLMsgInStatusBar("Please wait ... Installing package(s) from CRAN ...");
                PackageHelperMethods phm = new PackageHelperMethods();
                UAReturn r = phm.InstallCRANPackage();// InstallCRANPackage();

                if (r != null)
                {
                    if (r.Success)
                    {
                        SendToOutputWindow("Install Package from CRAN", r.CommandString);
                    }
                    else if (!r.Success)
                    {
                        SendToOutputWindow("Install Package from CRAN", r.Error);
                    }
                }
                else
                {
                    if(r != null) // if user didn't press 'Cancel'
                    SendToOutputWindow("Error Installing CRAN Package", "Package names are case sensitive. Please check your packgename.", false);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Error while loading package.", "Error Occurred!");
                logService.WriteToLogLevel("Error:", LogLevelEnum.Error, ex);
            }
            appwindow.setLMsgInStatusBar("");
        }