/// <summary>
/// Add children nodes to specified parent element.
/// </summary>
/// <param name="parent">The parent xml element.</param>
/// <param name="results">The item query result.</param>
/// <param name="view">The view object</param>
/// <param name="currentPath">The current data item path.</param>
/// <param name="dynamicLoad">Specified the tree node load on demand.</param>
public static void AddChildren(XElement parent, ContentQueryResult results, ContentViewDecorator view, string currentPath, bool dynamicLoad = true)
{
var Url = DNA.Utility.UrlUtility.CreateUrlHelper();
var fieldName = view.Parent.GetDefaultTitleField().Name;
foreach (var item in results)
{
var hasChildren = item.HasChildren;
var element = new XElement("li");
parent.Add(element);
if (hasChildren)
element.Add(new XAttribute("class", "d-node d-node-hasChildren"));
else
element.Add(new XAttribute("class", "d-node"));
var isInPath = false;
if (!string.IsNullOrEmpty(currentPath) && !string.IsNullOrEmpty(item.Path) && currentPath.StartsWith(item.Path))
{
isInPath = true;
if (hasChildren)
element.Add(new XAttribute("data-expanded", "true"));
if (item.Path==currentPath)
element.Add(new XAttribute("data-selected", "true"));
}
element.Add(new XAttribute("data-id", item.ID.ToString()));
if (item.ParentID != Guid.Empty)
element.Add(new XAttribute("data-parentid", item.ParentID.ToString()));
var linkElement = new XElement("a", new XAttribute("href", item.UrlComponent), item[fieldName]);
element.Add(linkElement);
if (hasChildren)
{
if (!isInPath && dynamicLoad)
{
var urlformat = "~/api/{0}/contents/items?name={1}&slug={2}&parentId={3}";
var popupUrl = Url.Content(string.Format(urlformat, view.Parent.Web.Name, view.Parent.Name, view.Name, item.ID.ToString()));
element.Add(new XAttribute("data-popupurl", popupUrl));
}
else
{
var childrenElement = new XElement("ul");
element.Add(childrenElement);
AddChildren(childrenElement, view.Items(string.Format("parentId='{0}'", item.ID.ToString())), view, currentPath);
}
}
}
}
public ActionResult ValidateFilter(int id, string filter)
{
if (!string.IsNullOrEmpty(filter))
{
var view = App.Get().DataContext.Find<ContentView>(id);
var wrapper = new ContentViewDecorator(view, App.Get().DataContext);
try
{
wrapper.Items(filter);
}
catch (Exception e)
{
return Json(false, JsonRequestBehavior.AllowGet);
}
}
return Json(true, JsonRequestBehavior.AllowGet);
}
/// <summary>
/// Render an items tree for specified view
/// </summary>
/// <param name="view">The data view object to get data items .</param>
/// <param name="parentID">The root data item id.</param>
/// <param name="currentPath">The current data item path.</param>
/// <param name="htmlAttributes">The html attributes for treeview element.</param>
/// <param name="dynamicLoad">Specified the tree node load on demand.</param>
/// <returns></returns>
public static HelperResult Tree(ContentViewDecorator view, string parentID = "", string currentPath = "", object htmlAttributes = null, bool dynamicLoad = true)
{
var items = view.Items(string.Format("parentId='{0}'", string.IsNullOrEmpty(parentID) ? Guid.Empty.ToString() : parentID));
return Tree(items, currentPath, htmlAttributes, dynamicLoad);
}