public static bool TryPickOperation(IServiceProvider serviceProvider, Activity activity, OperationInfoBase currentOperation, out OperationInfoBase selectedOperation) { selectedOperation = null; bool isReceiveActivity = activity is ReceiveActivity; try { using (OperationPickerDialog operationPicker = new OperationPickerDialog(serviceProvider, isReceiveActivity)) { Walker activityTreeWalker = new Walker(); Type allowedActivityType = null; if (isReceiveActivity) { allowedActivityType = typeof(ReceiveActivity); } else { allowedActivityType = typeof(SendActivity); } activityTreeWalker.FoundActivity += delegate(Walker walker, WalkerEventArgs eventArgs) { Activity foundActivity = eventArgs.CurrentActivity; if (!(allowedActivityType.IsAssignableFrom(foundActivity.GetType()))) { return; } if (!foundActivity.Enabled) { return; } if (foundActivity is ReceiveActivity) { ReceiveActivity reciveActivity = foundActivity as ReceiveActivity; if (reciveActivity.ServiceOperationInfo != null) { operationPicker.AddServiceOperation(reciveActivity.ServiceOperationInfo, reciveActivity); } } if (foundActivity is SendActivity) { SendActivity sendActivity = foundActivity as SendActivity; if (sendActivity.ServiceOperationInfo != null) { operationPicker.AddServiceOperation(sendActivity.ServiceOperationInfo, sendActivity); } } }; activityTreeWalker.Walk(activity.RootActivity); OperationInfoBase currentServiceOperationInfo = currentOperation as OperationInfoBase; if (currentServiceOperationInfo != null) { operationPicker.SelectedOperation = currentServiceOperationInfo; } DialogResult dialogResult = operationPicker.ShowDialog(); if ((operationPicker.SelectedOperation != null) && (dialogResult == DialogResult.OK) && !operationPicker.SelectedOperation.Equals(currentServiceOperationInfo)) { selectedOperation = operationPicker.SelectedOperation.Clone(); return(true); } } } catch (Exception e) { DesignerHelpers.ShowMessage(serviceProvider, e.Message, DR.GetString(DR.WorkflowDesignerTitle), MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1); throw; } return(false); }
public static bool TryPickOperation(IServiceProvider serviceProvider, Activity activity, OperationInfoBase currentOperation, out OperationInfoBase selectedOperation) { selectedOperation = null; bool isReceiveActivity = activity is ReceiveActivity; try { using (OperationPickerDialog operationPicker = new OperationPickerDialog(serviceProvider, isReceiveActivity)) { Walker activityTreeWalker = new Walker(); Type allowedActivityType = null; if (isReceiveActivity) { allowedActivityType = typeof(ReceiveActivity); } else { allowedActivityType = typeof(SendActivity); } activityTreeWalker.FoundActivity += delegate(Walker walker, WalkerEventArgs eventArgs) { Activity foundActivity = eventArgs.CurrentActivity; if (!(allowedActivityType.IsAssignableFrom(foundActivity.GetType()))) { return; } if (!foundActivity.Enabled) { return; } if (foundActivity is ReceiveActivity) { ReceiveActivity reciveActivity = foundActivity as ReceiveActivity; if (reciveActivity.ServiceOperationInfo != null) { operationPicker.AddServiceOperation(reciveActivity.ServiceOperationInfo, reciveActivity); } } if (foundActivity is SendActivity) { SendActivity sendActivity = foundActivity as SendActivity; if (sendActivity.ServiceOperationInfo != null) { operationPicker.AddServiceOperation(sendActivity.ServiceOperationInfo, sendActivity); } } }; activityTreeWalker.Walk(activity.RootActivity); OperationInfoBase currentServiceOperationInfo = currentOperation as OperationInfoBase; if (currentServiceOperationInfo != null) { operationPicker.SelectedOperation = currentServiceOperationInfo; } DialogResult dialogResult = operationPicker.ShowDialog(); if ((operationPicker.SelectedOperation != null) && (dialogResult == DialogResult.OK) && !operationPicker.SelectedOperation.Equals(currentServiceOperationInfo)) { selectedOperation = operationPicker.SelectedOperation.Clone(); return true; } } } catch (Exception e) { DesignerHelpers.ShowMessage(serviceProvider, e.Message, DR.GetString(DR.WorkflowDesignerTitle), MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1); throw; } return false; }