public static DynamicUpdateMap CreateUpdateMap(ActivityBuilder updatedActivityDefinition, IEnumerable <Activity> disallowUpdateInsideActivities, out IList <ActivityBlockingUpdate> activitiesBlockingUpdate)
{
if (updatedActivityDefinition == null)
{
throw FxTrace.Exception.ArgumentNull("updatedActivityDefinition");
}
ActivityBuilder originalActivityDefinition = DynamicUpdateInfo.GetOriginalActivityBuilder(updatedActivityDefinition);
if (originalActivityDefinition == null)
{
throw FxTrace.Exception.Argument("updatedActivityDefinition", SR.MustCallPrepareBeforeFinalize);
}
Activity originalBuiltRoot = GetDynamicActivity(originalActivityDefinition);
Activity updatedBuiltRoot = GetDynamicActivity(updatedActivityDefinition);
DynamicUpdateMap result = InternalTryCreateUpdateMap(updatedBuiltRoot, originalBuiltRoot, disallowUpdateInsideActivities, true, out activitiesBlockingUpdate);
// Remove the DynamicUpdateMapItems now that the update is finalized
// Calling CalculateMapItems is actually an unnecessary perf hit since it calls CacheMetadata
// again; but we do it so that Finalize is implemented purely in terms of other public APIs.
DynamicUpdateInfo.SetOriginalActivityBuilder(updatedActivityDefinition, null);
IDictionary <object, DynamicUpdateMapItem> mapItems = DynamicUpdateMap.CalculateImplementationMapItems(updatedBuiltRoot);
foreach (object matchObject in mapItems.Keys)
{
DynamicUpdateInfo.SetMapItem(matchObject, null);
}
return(result);
}
private static void InternalPrepareForUpdate(object definitionToBeUpdated, bool forImplementation)
{
// Clone the definition
object clone;
using (XamlObjectReader reader = new XamlObjectReader(definitionToBeUpdated))
{
using (XamlObjectWriter writer = new XamlObjectWriter(reader.SchemaContext))
{
XamlServices.Transform(reader, writer);
clone = writer.Result;
}
}
// Calculate the match info
// Set the match info as attached properties so it is serializable,
// and available when the user calls CreateUpdateMap
IDictionary <object, DynamicUpdateMapItem> mapItems;
if (!forImplementation)
{
DynamicUpdateInfo.SetOriginalDefinition(definitionToBeUpdated, (Activity)clone);
mapItems = DynamicUpdateMap.CalculateMapItems((Activity)definitionToBeUpdated);
}
else
{
DynamicUpdateInfo.SetOriginalActivityBuilder(definitionToBeUpdated, (ActivityBuilder)clone);
mapItems = DynamicUpdateMap.CalculateImplementationMapItems(GetDynamicActivity((ActivityBuilder)definitionToBeUpdated));
}
foreach (KeyValuePair <object, DynamicUpdateMapItem> objectInfo in mapItems)
{
DynamicUpdateInfo.SetMapItem(objectInfo.Key, objectInfo.Value);
}
}