/// <summary>
/// Add a select item to the current list of selection items
/// </summary>
/// <param name="itemToAdd">The item to add</param>
internal void AddToSelectedItems(SelectItem itemToAdd)
{
ExceptionUtils.CheckArgumentNotNull(itemToAdd, "itemToAdd");
if (this.selectedItems.Any(x => x is WildcardSelectItem) && UriUtils.IsStructuralOrNavigationPropertySelectionItem(itemToAdd))
{
return;
}
bool isWildcard = itemToAdd is WildcardSelectItem;
List <SelectItem> newSelectedItems = new List <SelectItem>();
foreach (SelectItem selectedItem in this.selectedItems)
{
if (isWildcard)
{
if (!UriUtils.IsStructuralSelectionItem(selectedItem))
{
newSelectedItems.Add(selectedItem);
}
}
else
{
newSelectedItems.Add(selectedItem);
}
}
newSelectedItems.Add(itemToAdd);
this.selectedItems = new ReadOnlyCollection <SelectItem>(newSelectedItems);
}
/// <summary>
/// Add a selection item to the current selection.
/// </summary>
/// <param name="itemToAdd">the new selection item to add</param>
internal void AddSelectItem(SelectItem itemToAdd)
{
DebugUtils.CheckNoExternalCallers();
Debug.Assert(this.usedInternalLegacyConsturctor, "Should never call this property unless we used internal ctor.");
ExceptionUtils.CheckArgumentNotNull(itemToAdd, "itemToAdd");
// if this is already an all selection, then adding a specific selection item is purely redundant.
if (this.selection is AllSelection)
{
return;
}
// otherwise, if it is either an expands-only or unkown selection, convert it to a partial selection before adding this item.
if (this.selection is ExpansionsOnly || this.selection is UnknownSelection)
{
this.selection = new PartialSelection(new List <SelectItem>()
{
itemToAdd
});
}
else
{
// TODO: why do we create a whole new list?
List <SelectItem> newSelections = ((PartialSelection)this.selection).SelectedItems.ToList();
if (itemToAdd is WildcardSelectItem)
{
IEnumerable <SelectItem> structualAndNavItems = newSelections.Where(UriUtils.IsStructuralOrNavigationPropertySelectionItem).ToArray();
foreach (SelectItem item in structualAndNavItems)
{
newSelections.Remove(item);
}
}
else if (UriUtils.IsStructuralOrNavigationPropertySelectionItem(itemToAdd))
{
if (newSelections.Any(item => item is WildcardSelectItem))
{
return;
}
}
newSelections.Add(itemToAdd);
this.selection = new PartialSelection(newSelections);
}
}