Dev2.Studio.UserInterfaceLayoutProvider.ConfigureSwitchCaseExpression C# (CSharp) Method

        internal void ConfigureSwitchCaseExpression(Tuple<ModelItem, IEnvironmentModel> payload)
        {
            IEnvironmentModel environment = payload.Item2;
            ModelItem switchCase = payload.Item1;
            string modelData = JsonConvert.SerializeObject(DataListConstants.DefaultCase);

            ErrorResultTO errors = new ErrorResultTO();
            Guid dataListID = GlobalConstants.NullDataListID;

            if (errors.HasErrors()) //BUG 8796, Added this if to handle errors
            {
                // Bad things happened... Tell the user
                PopupProvider.Show(errors.MakeDisplayReady(), GlobalConstants.SwitchWizardErrorHeading,
                                   MessageBoxButton.OK, MessageBoxImage.Error);
                // Stop configuring!!!
                return;
            }

            // now invoke the wizard ;)
            Uri requestUri;
            if (Uri.TryCreate((environment.WebServerAddress + GlobalConstants.SwitchDragWizardLocation), UriKind.Absolute, out requestUri))
            {
                string uriString = Browser.FormatUrl(requestUri.AbsoluteUri, dataListID);

                //var callBackHandler = new Dev2DecisionCallbackHandler();
                //callBackHandler.Owner = new WebPropertyEditorWindow(callBackHandler, uriString) { Width = 580, Height = 270 };
                //callBackHandler.Owner.ShowDialog();
                _callBackHandler.ModelData = modelData;

                WebSites.ShowWebPageDialog(uriString, _callBackHandler, 470, 285);


                // Wizard finished...
                // Now Fetch from DL and push the model data into the workflow
                try
                {
                    Dev2Switch ds = JsonConvert.DeserializeObject<Dev2Switch>(callBackHandler.ModelData);

                    if (ds != null)
                    {
                        ModelProperty keyProperty = switchCase.Properties["Key"];

                        if (keyProperty != null)
                        {
                            keyProperty.SetValue(ds.SwitchVariable);
                        }
                    }
                }
                catch
                {
                    // Bad things happened... Tell the user
                    PopupProvider.Buttons = MessageBoxButton.OK;
                    PopupProvider.Description = GlobalConstants.SwitchWizardErrorString;
                    PopupProvider.Header = GlobalConstants.SwitchWizardErrorHeading;
                    PopupProvider.ImageType = MessageBoxImage.Error;
                    PopupProvider.Show();
                }
            }
        }