/// <summary>
/// Inserts activities in specified composite activity designer by creating transaction
/// </summary>
/// <param name="compositeActivityDesigner">Designer in which to insert the activities</param>
/// <param name="insertLocation">Insertion location</param>
/// <param name="activitiesToInsert">Array of activities to insert</param>
/// <param name="undoTransactionDescription">Text for the designer transaction which will be created</param>
public static void InsertActivities(CompositeActivityDesigner compositeActivityDesigner, HitTestInfo insertLocation, ReadOnlyCollection<Activity> activitiesToInsert, string undoTransactionDescription)
{
if (compositeActivityDesigner == null)
throw new ArgumentNullException("compositeActivityDesigner");
if (compositeActivityDesigner.Activity == null ||
compositeActivityDesigner.Activity.Site == null ||
!(compositeActivityDesigner.Activity is CompositeActivity))
throw new ArgumentException("compositeActivityDesigner");
if (insertLocation == null)
throw new ArgumentNullException("insertLocation");
if (activitiesToInsert == null)
throw new ArgumentNullException("activitiesToInsert");
ISite site = compositeActivityDesigner.Activity.Site;
// now insert the actual activities
IDesignerHost designerHost = site.GetService(typeof(IDesignerHost)) as IDesignerHost;
DesignerTransaction trans = null;
if (designerHost != null && !string.IsNullOrEmpty(undoTransactionDescription))
trans = designerHost.CreateTransaction(undoTransactionDescription);
bool moveCase = false;
try
{
//Detect if the activities are being moved or inserted
foreach (Activity activity in activitiesToInsert)
{
if (activity == null)
throw new ArgumentException("activitiesToInsert", SR.GetString(SR.Error_CollectionHasNullEntry));
moveCase = ((IComponent)activity).Site != null;
break;
}
//We purposely create a new instance of activities list so that we do not modify the original one
if (moveCase)
compositeActivityDesigner.MoveActivities(insertLocation, activitiesToInsert);
else
compositeActivityDesigner.InsertActivities(insertLocation, activitiesToInsert);
if (trans != null)
trans.Commit();
}
catch (Exception e)
{
if (trans != null)
trans.Cancel();
throw e;
}
//If we are just moving the activities then we do not need to emit the class
//for scopes; only when we are adding the activities the class needs to be emitted for
//scope in code beside file
if (!moveCase)
{
// if everything was successful then generate classes correposnding to new scopes
// get all the activities underneath the child activities
ArrayList allActivities = new ArrayList();
foreach (Activity activity in activitiesToInsert)
{
allActivities.Add(activity);
if (activity is CompositeActivity)
allActivities.AddRange(Helpers.GetNestedActivities((CompositeActivity)activity));
}
}
}
public static void InsertActivities(CompositeActivityDesigner compositeActivityDesigner, System.Workflow.ComponentModel.Design.HitTestInfo insertLocation, ReadOnlyCollection<Activity> activitiesToInsert, string undoTransactionDescription)
{
if (compositeActivityDesigner == null)
{
throw new ArgumentNullException("compositeActivityDesigner");
}
if (((compositeActivityDesigner.Activity == null) || (compositeActivityDesigner.Activity.Site == null)) || !(compositeActivityDesigner.Activity is CompositeActivity))
{
throw new ArgumentException("compositeActivityDesigner");
}
if (insertLocation == null)
{
throw new ArgumentNullException("insertLocation");
}
if (activitiesToInsert == null)
{
throw new ArgumentNullException("activitiesToInsert");
}
IDesignerHost service = compositeActivityDesigner.Activity.Site.GetService(typeof(IDesignerHost)) as IDesignerHost;
DesignerTransaction transaction = null;
if ((service != null) && !string.IsNullOrEmpty(undoTransactionDescription))
{
transaction = service.CreateTransaction(undoTransactionDescription);
}
bool flag = false;
try
{
foreach (Activity activity in activitiesToInsert)
{
if (activity == null)
{
throw new ArgumentException("activitiesToInsert", SR.GetString("Error_CollectionHasNullEntry"));
}
flag = activity.Site != null;
break;
}
if (flag)
{
compositeActivityDesigner.MoveActivities(insertLocation, activitiesToInsert);
}
else
{
compositeActivityDesigner.InsertActivities(insertLocation, activitiesToInsert);
}
if (transaction != null)
{
transaction.Commit();
}
}
catch (Exception exception)
{
if (transaction != null)
{
transaction.Cancel();
}
throw exception;
}
if (!flag)
{
ArrayList list = new ArrayList();
foreach (Activity activity2 in activitiesToInsert)
{
list.Add(activity2);
if (activity2 is CompositeActivity)
{
list.AddRange(Helpers.GetNestedActivities((CompositeActivity) activity2));
}
}
}
}