internal static void ScheduleChildAntiDependenciesForRebinding(CommandProcessorContext cpc, EFObject efObject)
{
// identify any binding that was referencing this symbol, and add it to the list of things to rebind.
var visitor = new AntiDependencyCollectorVisitor();
visitor.Traverse(efObject);
ScheduleBindingsForRebind(cpc, visitor.AntiDependencyBindings);
}
private static void ProcessExternalRemoveChange(
EfiChangeGroup changeGroup, IList<ItemBinding> bindingsForRebind, ExternalXMLModelChange modelChange)
{
var changedEFObject = modelChange.ChangedEFObject;
var parentEFObject = modelChange.Parent;
if (changedEFObject != null)
{
var staleItemBinding = changedEFObject as ItemBinding;
var staleDefaultableValue = changedEFObject as DefaultableValue;
var parentEFContainer = parentEFObject as EFContainer;
Debug.Assert(parentEFContainer != null, "parentEfObject was not an EFContainer!");
if (staleItemBinding != null)
{
// if this is an itembinding, then we have to directly null out the xobject and rebind since the refname is a "symlink" to the xattribute
foreach (var child in parentEFContainer.Children)
{
var updatedItemBinding = child as ItemBinding;
if (updatedItemBinding != null
&& updatedItemBinding.EFTypeName == staleItemBinding.EFTypeName)
{
updatedItemBinding.SetXObject(null);
updatedItemBinding.Rebind();
changedEFObject = updatedItemBinding;
break;
}
}
}
else if (staleDefaultableValue != null)
{
foreach (var child in parentEFContainer.Children)
{
var updatedDefaultableValue = child as DefaultableValue;
if (updatedDefaultableValue != null
&& updatedDefaultableValue.EFTypeName == staleDefaultableValue.EFTypeName)
{
updatedDefaultableValue.SetXObject(null);
changedEFObject = updatedDefaultableValue;
break;
}
}
}
else
{
// Find all the dependent binding.
var visitor = new AntiDependencyCollectorVisitor();
visitor.Traverse(changedEFObject);
foreach (var binding in visitor.AntiDependencyBindings)
{
if (!bindingsForRebind.Contains(binding))
{
bindingsForRebind.Add(binding);
}
}
// Delete(false) because it has already been removed from XLinq tree
changedEFObject.Delete(false);
}
// record the change so views get updated
changeGroup.RecordModelChange(EfiChange.EfiChangeType.Delete, changedEFObject, String.Empty, String.Empty, String.Empty);
}
else
{
throw new ChangeProcessingFailedException();
}
}