private void BuildExpansions(SelectExpandClause selectExpandClause, HashSet <IEdmNavigationProperty> allNavigationProperties)
{
foreach (SelectItem selectItem in selectExpandClause.SelectedItems)
{
ExpandedReferenceSelectItem expandReferenceItem = selectItem as ExpandedReferenceSelectItem;
if (expandReferenceItem != null)
{
ValidatePathIsSupported(expandReferenceItem.PathToNavigationProperty);
NavigationPropertySegment navigationSegment = (NavigationPropertySegment)expandReferenceItem.PathToNavigationProperty.LastSegment;
IEdmNavigationProperty navigationProperty = navigationSegment.NavigationProperty;
if (allNavigationProperties.Contains(navigationProperty))
{
ExpandedNavigationSelectItem expandItem = selectItem as ExpandedNavigationSelectItem;
if (expandItem != null)
{
ExpandedProperties.Add(navigationProperty, expandItem);
}
else
{
ReferencedNavigationProperties.Add(navigationProperty);
}
}
}
}
}
private void BuildExpansions(IEnumerable <SelectItem> selectedItems, HashSet <IEdmNavigationProperty> allNavigationProperties)
{
foreach (SelectItem selectItem in selectedItems)
{
ExpandedReferenceSelectItem expandReferenceItem = selectItem as ExpandedReferenceSelectItem;
if (expandReferenceItem != null)
{
ValidatePathIsSupportedForExpand(expandReferenceItem.PathToNavigationProperty);
NavigationPropertySegment navigationSegment = (NavigationPropertySegment)expandReferenceItem.PathToNavigationProperty.LastSegment;
IEdmNavigationProperty navigationProperty = navigationSegment.NavigationProperty;
int propertyCountInPath =
expandReferenceItem.PathToNavigationProperty.OfType <PropertySegment>().Count();
bool numberOfPropertiesInPathMatch =
(propertyCountInPath > 0 && PropertiesInPath != null &&
PropertiesInPath.Count == propertyCountInPath) || propertyCountInPath < 1;
if (numberOfPropertiesInPathMatch && allNavigationProperties.Contains(navigationProperty))
{
ExpandedNavigationSelectItem expandItem = selectItem as ExpandedNavigationSelectItem;
if (expandItem != null)
{
if (!ExpandedProperties.ContainsKey(navigationProperty))
{
ExpandedProperties.Add(navigationProperty, expandItem);
}
else
{
ExpandedProperties[navigationProperty] = expandItem;
}
}
else
{
ReferencedNavigationProperties.Add(navigationProperty);
}
}
else
{
//This is the case where the navigation property is not on the current type. We need to propagate the expand item to deeper SelectExpandNode.
IEdmStructuralProperty complexProperty = FindNextPropertySegment(expandReferenceItem.PathToNavigationProperty);
if (complexProperty != null)
{
SelectExpandClause newClause;
if (ExpandedPropertiesOnSubChildren.ContainsKey(complexProperty))
{
SelectExpandClause oldClause = ExpandedPropertiesOnSubChildren[complexProperty].SelectAndExpand;
newClause = new SelectExpandClause(
oldClause.SelectedItems.Concat(new SelectItem[] { expandReferenceItem }), false);
ExpandedNavigationSelectItem newItem = new ExpandedNavigationSelectItem(expandReferenceItem.PathToNavigationProperty, navigationSegment.NavigationSource, newClause);
ExpandedPropertiesOnSubChildren[complexProperty] = newItem;
}
else
{
newClause = new SelectExpandClause(new SelectItem[] { expandReferenceItem }, false);
ExpandedNavigationSelectItem newItem = new ExpandedNavigationSelectItem(expandReferenceItem.PathToNavigationProperty, navigationSegment.NavigationSource, newClause);
ExpandedPropertiesOnSubChildren.Add(complexProperty, newItem);
}
}
}
}
}
}