private static Activity CloneRootActivity(Activity originalRootActivity)
{
// create new definition root
string xomlText = originalRootActivity.GetValue(Activity.WorkflowXamlMarkupProperty) as string;
string rulesText = null;
Activity clonedRootActivity = null;
IServiceProvider serviceProvider = originalRootActivity.GetValue(Activity.WorkflowRuntimeProperty) as IServiceProvider;
Debug.Assert(serviceProvider != null);
if (!string.IsNullOrEmpty(xomlText))
{
rulesText = originalRootActivity.GetValue(Activity.WorkflowRulesMarkupProperty) as string;
clonedRootActivity = Activity.OnResolveActivityDefinition(null, xomlText, rulesText, true, false, serviceProvider);
}
else
{
clonedRootActivity = Activity.OnResolveActivityDefinition(originalRootActivity.GetType(), null, null, true, false, serviceProvider);
}
if (clonedRootActivity == null)
{
throw new NullReferenceException(SR.GetString(SR.Error_InvalidRootForWorkflowChanges));
}
// deserialize change history and apply it to new definition tree
ArrayList workflowChanges = (ArrayList)((Activity)originalRootActivity).GetValue(WorkflowChanges.WorkflowChangeActionsProperty);
if (workflowChanges != null)
{
workflowChanges = CloneWorkflowChangeActions(workflowChanges, originalRootActivity);
if (workflowChanges != null)
{
// apply changes to the shared schedule Defn to get the instance specific copy
foreach (WorkflowChangeAction action in workflowChanges)
{
bool result = action.ApplyTo((Activity)clonedRootActivity);
Debug.Assert(result, "ApplyTo Failed");
}
((Activity)clonedRootActivity).SetValue(WorkflowChanges.WorkflowChangeActionsProperty, workflowChanges);
}
}
return(clonedRootActivity);
}
private static Activity CloneRootActivity(Activity originalRootActivity)
{
string str = originalRootActivity.GetValue(Activity.WorkflowXamlMarkupProperty) as string;
string rulesMarkup = null;
Activity rootActivity = null;
IServiceProvider serviceProvider = originalRootActivity.GetValue(Activity.WorkflowRuntimeProperty) as IServiceProvider;
if (!string.IsNullOrEmpty(str))
{
rulesMarkup = originalRootActivity.GetValue(Activity.WorkflowRulesMarkupProperty) as string;
rootActivity = Activity.OnResolveActivityDefinition(null, str, rulesMarkup, true, false, serviceProvider);
}
else
{
rootActivity = Activity.OnResolveActivityDefinition(originalRootActivity.GetType(), null, null, true, false, serviceProvider);
}
if (rootActivity == null)
{
throw new NullReferenceException(SR.GetString("Error_InvalidRootForWorkflowChanges"));
}
ArrayList workflowChanges = (ArrayList)originalRootActivity.GetValue(WorkflowChangeActionsProperty);
if (workflowChanges != null)
{
workflowChanges = CloneWorkflowChangeActions(workflowChanges, originalRootActivity);
if (workflowChanges == null)
{
return(rootActivity);
}
foreach (WorkflowChangeAction action in workflowChanges)
{
action.ApplyTo(rootActivity);
}
rootActivity.SetValue(WorkflowChangeActionsProperty, workflowChanges);
}
return(rootActivity);
}