/// <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) && IsStructuralOrNavigationPropertySelectionItem(itemToAdd))
{
return;
}
bool isWildcard = itemToAdd is WildcardSelectItem;
List <SelectItem> newSelectedItems = new List <SelectItem>();
foreach (SelectItem selectedItem in this.selectedItems)
{
if (isWildcard)
{
if (!IsStructuralSelectionItem(selectedItem))
{
newSelectedItems.Add(selectedItem);
}
}
else
{
newSelectedItems.Add(selectedItem);
}
}
newSelectedItems.Add(itemToAdd);
this.selectedItems = new ReadOnlyCollection <SelectItem>(newSelectedItems);
}
/// <summary>
/// Get the string representation of a select item (that isn't an expandedNavPropSelectItem
/// </summary>
/// <param name="selectedItem">the select item to translate</param>
/// <returns>the string representation of this select item, or null if the select item is an expandedNavPropSelectItem</returns>
private static string GetSelectString(SelectItem selectedItem)
{
WildcardSelectItem wildcardSelect = selectedItem as WildcardSelectItem;
NamespaceQualifiedWildcardSelectItem namespaceQualifiedWildcard = selectedItem as NamespaceQualifiedWildcardSelectItem;
PathSelectItem pathSelectItem = selectedItem as PathSelectItem;
if (wildcardSelect != null)
{
return("*");
}
else if (namespaceQualifiedWildcard != null)
{
return(namespaceQualifiedWildcard.Namespace + ".*");
}
else if (pathSelectItem != null)
{
return(String.Join("/", pathSelectItem.SelectedPath.WalkWith(PathSegmentToStringTranslator.Instance).ToArray()));
}
else
{
return(null);
}
}
/// <summary>
/// is this selection item a structural selection item.
/// </summary>
/// <param name="selectItem">the selection item to check</param>
/// <returns>true if this selection item is a structural property selection item.</returns>
private static bool IsStructuralSelectionItem(SelectItem selectItem)
{
PathSelectItem pathSelectItem = selectItem as PathSelectItem;
return(pathSelectItem != null && (pathSelectItem.SelectedPath.LastSegment is PropertySegment));
}