private void TabItem_GotFocus_RefreshXamlBox(object sender, RoutedEventArgs e)
{
if (_workflowDesigner.Text != null)
{
_workflowDesigner.Flush();
xamlTextBox.Text = _workflowDesigner.Text;
}
}
private void menuSave_Click(object sender, RoutedEventArgs e)
{
if (String.IsNullOrEmpty(currentXamlPath))
{
menuSaveAs_Click(sender, e);
}
else
{
wd.Flush();
SaveXamlFile(currentXamlPath, wd.Text);
isModified = false;
UpdateTitle();
}
}
public void OpenWorkflow(int workflowID)
{
Workflow = SystemService.GetDynObjectByID("Workflow", workflowID);
if (Workflow != null)
{
_designer = new WorkflowDesigner();
_undoEngine = _designer.Context.Services.GetService <UndoEngine>();
_undoEngine.UndoUnitAdded += delegate(object ss, UndoUnitEventArgs ee)
{
_designer.Flush();
CanUndo = true;
};
DesignerView = _designer.View;
PropertyContent = _designer.PropertyInspectorView;
_designer.Text = Workflow["Definition"].ToString();
_designer.Load();
WorkflowName = Workflow["WorkflowName"].ToString();
EditState = "modify";
CanUndo = false;
CanRedo = false;
DeleteCommand.RaiseCanExecuteChanged();
}
else
{
MessageBox.Show("所选的工作流在数据库中不存在,请检查!");
}
}
private void btnRun_Click(object sender, RoutedEventArgs e)
{
AutoResetEvent syncEvent = new AutoResetEvent(false);
var writer = new StringWriter();
// Run workflow
wd.Flush();
Activity dataWorkflow = ActivityXamlServices.Load(new StringReader(wd.Text));
// Create the WorkflowApplication using the desired
// workflow definition.
WorkflowApplication wfApp = new WorkflowApplication(dataWorkflow);
// Handle the desired lifecycle events.
wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs eventarg)
{
MessageBox.Show($"Task Finished!\n---- Output ----\n{ writer.ToString() }");
syncEvent.Set();
};
wfApp.Extensions.Add(writer);
// Start the workflow.
wfApp.Run();
// Wait for Completed to arrive and signal that
// the workflow is complete.
syncEvent.WaitOne();
}
public WorkflowDesignerViewModel()
{
(new DesignerMetadata()).Register();
_workflowToolboxControl = new ToolboxControl()
{
Categories = WorkflowToolbox.LoadToolbox()
};
_designer = new WorkflowDesigner();
_undoEngine = _designer.Context.Services.GetService <UndoEngine>();
_undoEngine.UndoUnitAdded += delegate(object ss, UndoUnitEventArgs ee)
{
_designer.Flush();
CanUndo = true;
};
DesignerView = _designer.View;
PropertyContent = _designer.PropertyInspectorView;
_designer.Text = "<Activity mc:Ignorable=\"sap\" x:Class=\"WorkflowInvokerSample.流程图\" xmlns=\"http://schemas.microsoft.com/netfx/2009/xaml/activities\" xmlns:av=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" xmlns:mc=\"http://schemas.openxmlformats.org/markup-compatibility/2006\" xmlns:mv=\"clr-namespace:Microsoft.VisualBasic;assembly=System\" xmlns:mva=\"clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities\" xmlns:s=\"clr-namespace:System;assembly=mscorlib\" xmlns:s1=\"clr-namespace:System;assembly=System\" xmlns:s2=\"clr-namespace:System;assembly=System.Xml\" xmlns:s3=\"clr-namespace:System;assembly=System.Core\" xmlns:s4=\"clr-namespace:System;assembly=System.ServiceModel\" xmlns:sad=\"clr-namespace:System.Activities.Debugger;assembly=System.Activities\" xmlns:sap=\"http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation\" xmlns:scg=\"clr-namespace:System.Collections.Generic;assembly=mscorlib\" xmlns:scg1=\"clr-namespace:System.Collections.Generic;assembly=System\" xmlns:scg2=\"clr-namespace:System.Collections.Generic;assembly=System.ServiceModel\" xmlns:scg3=\"clr-namespace:System.Collections.Generic;assembly=System.Core\" xmlns:sd=\"clr-namespace:System.Data;assembly=System.Data\" xmlns:sl=\"clr-namespace:System.Linq;assembly=System.Core\" xmlns:st=\"clr-namespace:System.Text;assembly=mscorlib\" xmlns:w=\"clr-namespace:WorkflowInvokerSample\" xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\">\r\n <x:Members>\r\n <x:Property Name=\"WorkflowInstanceID\" Type=\"InArgument(x:Int32)\" />\r\n <x:Property Name=\"ExchangeParams\" Type=\"InOutArgument(scg:Dictionary(x:String, x:Object))\" />\r\n <x:Property Name=\"FirstActor\" Type=\"InArgument(x:String)\" />\r\n <x:Property Name=\"LastActor\" Type=\"InOutArgument(x:String)\" />\r\n </x:Members>\r\n <sap:VirtualizedContainerService.HintSize>654,676</sap:VirtualizedContainerService.HintSize>\r\n <mva:VisualBasic.Settings>Assembly references and imported namespaces for internal implementation</mva:VisualBasic.Settings>\r\n <Flowchart DisplayName=\"流程图\" sad:XamlDebuggerXmlReader.FileName=\"C:\\Users\\Administrator\\Downloads\\WorkflowInvokerSample\\WorkflowInvokerSample\\流程图.xaml\" sap:VirtualizedContainerService.HintSize=\"614,636\">\r\n <sap:WorkflowViewStateService.ViewState>\r\n <scg:Dictionary x:TypeArguments=\"x:String, x:Object\">\r\n <x:Boolean x:Key=\"IsExpanded\">False</x:Boolean>\r\n <av:Point x:Key=\"ShapeLocation\">270,2.5</av:Point>\r\n <av:Size x:Key=\"ShapeSize\">60,75</av:Size>\r\n <av:PointCollection x:Key=\"ConnectorLocation\">300,77.5 300,107.5 300,189</av:PointCollection>\r\n </scg:Dictionary>\r\n </sap:WorkflowViewStateService.ViewState>\r\n <Flowchart.StartNode>\r\n <x:Null />\r\n </Flowchart.StartNode>\r\n </Flowchart>\r\n</Activity>";
_designer.Load();
WorkflowName = "新建工作流";
CanUndo = false;
CanRedo = false;
EditState = "add";
OpenCommand = new DelegateCommand <object>(OpenWorkflowListWindow);
AddCommand = new DelegateCommand <object>(Add);
DeleteCommand = new DelegateCommand <object>(Delete, CanDeleteWorkflowExecute);
SaveCommand = new DelegateCommand <object>(Save);
UndoCommand = new DelegateCommand <object>(Undo);
RedoCommand = new DelegateCommand <object>(Redo);
DebugCommand = new DelegateCommand <object>(Debug);
}
private void WorkflowDesigner_ModelChanged(object sender, EventArgs e)
{
WorkflowDesigner designer = sender as WorkflowDesigner;
if (designer != null)
{
designer.Flush();
_ruleConfigContext.EditingRule.Text = designer.Text;
}
}
private Activity GetActivity()
{
//get workflow source from designer
_wfDesigner.Flush();
var workflowStream = new MemoryStream(Encoding.UTF8.GetBytes(_wfDesigner.Text));
var settings = new ActivityXamlServicesSettings()
{
CompileExpressions = true
};
return(ActivityXamlServices.Load(workflowStream, settings));
}
private Activity GetRuntimeActivity()
{
_workflowDesigner.Flush();
var stringReader = new StringReader(_workflowDesigner.Text);
var root = ActivityXamlServices.Load(stringReader);
WorkflowInspectionServices.CacheMetadata(root);
var list = WorkflowInspectionServices.GetActivities(root).GetEnumerator();
list.MoveNext();
var runtimeActivity = list.Current;
return(runtimeActivity);
}
//加载流程
void loadWorkflowFromFile(string workflowFilePathName)
{
desienerPanel.Content = null;
// propertyPanel.Content = null;
designer = new WorkflowDesigner();
try
{
designer.Load(workflowFilePathName);
modelService = designer.Context.Services.GetService <ModelService>();
rootModelItem = modelService.Root;
undoEngine = designer.Context.Services.GetService <UndoEngine>();
undoEngine.UndoUnitAdded += delegate(object ss, UndoUnitEventArgs ee)
{
designer.Flush(); //调用Flush使designer.Text得到数据
desigeerActionList.Items.Add(string.Format("{0} , {1}", DateTime.Now.ToString(), ee.UndoUnit.Description));
};
designerView = designer.Context.Services.GetService <DesignerView>();
designerView.WorkflowShellBarItemVisibility = ShellBarItemVisibility.Arguments //如果不使用Activity做根,无法出现参数选项
| ShellBarItemVisibility.Imports
| ShellBarItemVisibility.MiniMap
| ShellBarItemVisibility.Variables
| ShellBarItemVisibility.Zoom
;
desienerPanel.Content = designer.View;
//propertyPanel.Content = designer.PropertyInspectorView;
propertyGrid.setWfDesigner(designer);
//this.xamlTextBox.Text = designer.Text;
}
catch (SystemException ex)
{
MessageBox.Show(ex.Message);
}
} //end
private void Execute(Boolean slow)
{
// Valider l'activité créé dynamiquement
Activity activity = XamlHelper.GetActivity(Text);
DynamicActivity d = (DynamicActivity)activity;
if (d.Implementation == null)
{
return;
}
if (_type == WorkflowType.Activiy)
{
// Pour avoir un tracking visual, il faut un mapping.
// Le mapping n'est possible que si le designer est chargé à partir d'un fichier.
// Afin de palier à ce problème, on enregistre le fichier dans un répertoire temporaire et on recharge
String path = Path.GetTempFileName();
_designer.Flush();
_designer.Save(path);
ResetDesigner();
_designer.Load(path);
_host = new WorkflowApplication(activity);
Tracking = new VisualTracking(_designer, slow);
// Ajout des extension
_host.Extensions.Add(_visualTracking);
_host.Extensions.Add(_output);
_host.Completed = (e) =>
{
//This is to remove the final debug adornment
Dispatcher.CurrentDispatcher.Invoke(DispatcherPriority.Render, new Action(ClearDebug));
_host = null;
_stopCommand.RaiseCanExecuteChanged();
};
// Invoquer le workdflow
_host.Run();
_stopCommand.RaiseCanExecuteChanged();
}
else
{
throw new NotImplementedException("L'hébergement de service n'est pas supporté actuellement!");
}
}
public void ExecuteNew(object parameter)
{
WorkflowDesignerObj = new WorkflowDesigner();
WorkflowDesignerObj.ModelChanged += new EventHandler(workflowDesigner_ModelChanged);
if (File.Exists(TemplateXaml))
{
WorkflowDesignerObj.Load(TemplateXaml);
}
else
{
WorkflowDesignerObj.Load(new Sequence());
}
WorkflowDesignerObj.Flush();
}
private void WorkflowSourceChanged(TreeViewItem treeViewItem)
{
_workflowDesigner.Flush();
var content = _workflowDesigner.Text;
DebugInfo.Text = content;
var xElement = treeViewItem.DataContext as XElement;
if (xElement == null)
{
MessageBox.Show("Related treeview item does not contain xml format data.");
return;
}
var activity = Utilities.GetActivityFromContentString(content);
if (activity == null)
{
MessageBox.Show("We receive invalid data[" + content + "]");
return;
}
var name = activity.GetType().GetProperty(Constants.NAME).GetValue(activity, null) as string;
var description = activity.GetType().GetProperty("Description").GetValue(activity, null) as string;
activity.GetType().GetProperty("Authors").SetValue(activity, _currentWindowsUser);
if (!string.IsNullOrEmpty(name))
{
xElement.SetAttributeValue(Constants.NAME, name);
}
if (!string.IsNullOrEmpty(description))
{
xElement.SetAttributeValue("Description", description);
}
xElement.SetAttributeValue(Constants.CONTENT, content);
var sRoot = DBFactory.GetData().Save(xElement);
if (!sRoot)
{
MessageBox.Show("update Tree item Failed. ");
return;
}
Dispatcher.BeginInvoke(new Action(() => UpdateRelatedTreeViewItem(treeViewItem, xElement)));
}
public void Run()
{
if (IsExecuting)
{
return;
}
WorkflowDesigner.Flush();
if (WorkflowType == WorkflowType.Activity)
{
executer = new ActivityRunner(WorkflowDesigner.Text, outputTextWriter);
}
else
{
executer = new WorkflowServiceRunner(WorkflowDesigner.Text, outputTextWriter);
}
executer.ExecutingStateChanged += OnExecuterRunningStateChanged;
executer.Start();
}
private void AddDesigner()
{
ScrollViewer designerScrollViewer = new ScrollViewer {
HorizontalScrollBarVisibility = ScrollBarVisibility.Disabled
};
this.wd = new WorkflowDesigner();
Grid.SetRow(designerScrollViewer, 0);
Grid.SetColumn(designerScrollViewer, 0);
LoadWorkflow();
if (workflow != null)
{
this.wd.Load(workflow);
wd.Flush();
designerScrollViewer.Content = wd.View;
wd.View.IsEnabled = false;
designerScrollViewer.ScrollToTop();
MainLayout.Children.Add(designerScrollViewer);
}
}
//run
private void Button_Click_1(object sender, RoutedEventArgs e)
{
textBox.Text = "Workflow Start\r\n";
try
{
wd.Flush();
// create stream with textbox contents
StringBuilder data = new StringBuilder();
Stream stream = new MemoryStream(ASCIIEncoding.Default.GetBytes(wd.Text));
// invoke workflow
Activity wf = ActivityXamlServices.Load(stream);
IDictionary <string, object> results = WorkflowInvoker.Invoke(wf);
//textBox.Text = wd.Text;
// show results
//textBox.Text = "Workflow Executed";
//textBox.Text += "\r\nReturned data:";
if (results.Count > 0)
{
foreach (string key in results.Keys)
{
textBox.Text += string.Format("{0} : {1}\r\n", key, results[key]);
}
}
else
{
//textBox.Text += "<no data returned>\r\n";
}
}
catch (Exception ex)
{
textBox.Text += string.Format("Error executing the Xaml. Exception type: {0}\r\nDetails:\r\n--------\r\n{1}\r\n", ex.GetType().FullName, ex.ToString());
}
textBox.Text += "Workflow End\r\n";
}
public void Start()
{
WorkflowDesigner.Flush();
StartInternal();
}
//Run the Workflow with the tracking participant
public void RunWorkflow()
{
WorkflowDesigner.Save(WorkflowFilePath);
WorkflowDesigner.Flush();
AddWorkflowDesigner();
WorkflowInvoker instance = new WorkflowInvoker(GetRuntimeExecutionRoot());
resumeRuntimeFromHost = new AutoResetEvent(false);
Dictionary <string, Activity> activityIdToWfElementMap = BuildActivityIdToWfElementMap(wfElementToSourceLocationMap);
#region Set up the Custom Tracking
const String all = "*";
SimulatorTrackingParticipant simTracker = new SimulatorTrackingParticipant()
{
TrackingProfile = new TrackingProfile()
{
Name = "CustomTrackingProfile",
Queries =
{
new CustomTrackingQuery()
{
Name = all,
ActivityName = all
},
new WorkflowInstanceQuery()
{
// Limit workflow instance tracking records for started and completed workflow states
States ={ WorkflowInstanceStates.Started, WorkflowInstanceStates.Completed, WorkflowInstanceStates.Idle },
},
new ActivityStateQuery()
{
// Subscribe for track records from all activities for all states
ActivityName = all,
States = { all },
// Extract workflow variables and arguments as a part of the activity tracking record
// VariableName = "*" allows for extraction of all variables in the scope
// of the activity
Variables =
{
{ all }
}
}
}
}
};
simTracker.ActivityIdToWorkflowElementMap = activityIdToWfElementMap;
#endregion
//As the tracking events are received
simTracker.TrackingRecordReceived += (trackingParticpant, trackingEventArgs) =>
{
if (trackingEventArgs.Activity != null)
{
System.Diagnostics.Debug.WriteLine(
String.Format("<+=+=+=+> Activity Tracking Record Received for ActivityId: {0}, record: {1} ",
trackingEventArgs.Activity.Id,
trackingEventArgs.Record
)
);
ShowDebug(wfElementToSourceLocationMap[trackingEventArgs.Activity]);
this.Dispatcher.Invoke(DispatcherPriority.SystemIdle, (Action)(() =>
{
//Textbox Updates
tx.AppendText(trackingEventArgs.Activity.Id + " " + trackingEventArgs.Activity.DisplayName + " " + ((ActivityStateRecord)trackingEventArgs.Record).State + "\n");
tx.AppendText("Instance ID: " + ((ActivityStateRecord)trackingEventArgs.Record).InstanceId + "\n");
tx.AppendText("Activity: " + ((ActivityStateRecord)trackingEventArgs.Record).Activity.Name + "\n");
tx.AppendText("Level: " + ((ActivityStateRecord)trackingEventArgs.Record).Level + "\n");
tx.AppendText("Time: " + ((ActivityStateRecord)trackingEventArgs.Record).EventTime + "\n");
tx.AppendText("******************\n");
// textLineToSourceLocationMap.Add(i, wfElementToSourceLocationMap[trackingEventArgs.Activity]);
// i = i + 2;
//Add a sleep so that the debug adornments are visible to the user
System.Threading.Thread.Sleep(500);
}));
}
};
instance.Extensions.Add(simTracker);
ThreadPool.QueueUserWorkItem(new WaitCallback((context) =>
{
//Start the Runtime
instance.Invoke();// new TimeSpan(1,0,0));
//This is to remove the final debug adornment
this.Dispatcher.Invoke(DispatcherPriority.Render
, (Action)(() =>
{
this.WorkflowDesigner.DebugManagerView.CurrentLocation = new SourceLocation(WorkflowFilePath, 1, 1, 1, 10);
}));
}));
}
public VisualMapping(WorkflowDesigner designer)
{
_designer = designer;
_designer.Flush();
}
private bool IsDirty()
{
wd.Flush();
return(lastSavedXaml != wd.Text || mustSave);
}
private void LoadDesignerAndWorkflow(string fileName = null)
{
isLoadingXaml = true;
Encrypt = false;
mustSave = false;
if (wd != null)
{
MainLayout.Children.Remove(this.wd.View);
MainLayout.Children.Remove(this.wd.PropertyInspectorView);
this.wd.ModelChanged -= wd_ModelChanged;
this.wd = null;
}
//Create an instance of WorkflowDesigner class.
this.wd = new WorkflowDesigner();
DesignerConfigurationService configService = this.wd.Context.Services.GetService <DesignerConfigurationService>();
configService.TargetFrameworkName = new FrameworkName(".NETFramework", new Version(4, 5));
configService.LoadingFromUntrustedSourceEnabled = true;
this.wd.ModelChanged += new EventHandler(wd_ModelChanged);
//Place the designer canvas in the middle column of the grid.
Grid.SetRow(this.wd.View, 1);
Grid.SetColumn(this.wd.View, 2);
AddPropertyInspector();
if (string.IsNullOrEmpty(fileName))
{
this.wd.Load(new Sequence());
wd.Flush();
lastSavedXaml = wd.Text;
mustSave = true;
}
else
{
password = null;
string errorMessage = null;
if (XamlFileProviderFactory.IsXamlFileEncrypted(fileName))
{
if (!GetPassword())
{
errorMessage = string.Format("The file '{0}' is protected and requires the correct password to open.", xamlFile);
}
else
{
Encrypt = true;
}
}
if (string.IsNullOrEmpty(errorMessage))
{
try
{
IXamlFileProvider provider = XamlFileProviderFactory.GetXamlFileProvider(fileName, password);
provider.LoadXamlFile(fileName, password);
this.wd.Load(provider.XamlDocument);
wd.Flush();
lastSavedXaml = wd.Text;
}
catch (Exception ex)
{
errorMessage = ex.Message;
if (errorMessage == "The encrypted string was not in a valid format.")
{
errorMessage = "The password you specified was incorrect.";
}
errorMessage = string.Format("The following error occurred while trying to open '{0}' : \n\n{1}", xamlFile, errorMessage);
}
}
if (!string.IsNullOrEmpty(errorMessage))
{
xamlFile = string.Empty;
ShowErrorMessage(errorMessage, "Failed to load file");
this.wd.Load(new Sequence());
password = null;
mustSave = true;
Encrypt = false;
}
}
busyGettingPassword = true;
Protect.GetBindingExpression(System.Windows.Controls.Primitives.ToggleButton.IsCheckedProperty).UpdateTarget();
busyGettingPassword = false;
//Add the designer canvas to the grid.
MainLayout.Children.Add(this.wd.View);
StatusBarText.Text = "";
ToggleDocumentHasChangesVisual(mustSave);
isLoadingXaml = false;
}