protected void RadGrid1_NeedDataSource(object source, GridNeedDataSourceEventArgs e)
{
BusiBlocksTreeView categories = NewsManager.GetCategoriesItemsTree(Page.User.Identity.Name);
object itemList = ViewState[ItemList];
if (itemList != null)
{
IList <Item> items = new List <Item>();
if (itemList.ToString().Equals("All"))
{
items = NewsManager.GetItems();
}
else
{
if (!string.IsNullOrEmpty(itemList.ToString()))
{
string[] arr = itemList.ToString().Split(',');
foreach (string itemId in arr)
{
Item item = NewsManager.GetItem(itemId);
if (categories.Contains(item.Category.Id))
{
items.Add(NewsManager.GetItem(itemId));
}
}
}
}
if (RadGrid1.MasterTableView.SortExpressions.Count == 0)
{
GridSortExpression expression = new GridSortExpression();
expression.FieldName = "Item.UpdateDate";
expression.SortOrder = GridSortOrder.Descending;
RadGrid1.MasterTableView.SortExpressions.AddSortExpression(expression);
}
var allowedList =
(from item in items where SecurityHelper.CanUserView(Page.User.Identity.Name, item.Category.Id) select new RepeaterItem {
Item = item, TrafficLightUrl = GetUserStatus(item)
}).ToList();
RadGrid1.DataSource = allowedList;
}
}
public static BusiBlocksTreeView GetCategoriesItemsTree(bool includeItems, string username)
{
BusiBlocksTreeView tree = new BusiBlocksTreeView {
Nodes = new List <BusiBlocksTreeNode>()
};
IList <Category> categories = NewsManager.GetAllCategories();
var rootCategories = from x in categories where x.ParentCategory == null select x;
int maxLevel = 100;
foreach (Category category in rootCategories)
{
BusiBlocksTreeNode node = new BusiBlocksTreeNode {
Name = category.Name, Id = category.Id, IsFolder = true, ChildNodes = new List <BusiBlocksTreeNode>()
};
if (BusiBlocks.SecurityHelper.CanUserView(username, node.Id))
{
tree.Nodes.Add(node);
IList <Item> items = NewsManager.GetItems(category, false);
if (items.Count > 0 && includeItems)
{
foreach (Item item in items)
{
if (BusiBlocks.SecurityHelper.CanUserView(username, category.Id))
{
node.ChildNodes.Add(new BusiBlocksTreeNode {
Id = item.Id, Name = item.Title, IsFolder = false
});
}
}
}
CreateCategoryStructure(node, categories, category, maxLevel, 0, includeItems, username);
}
}
return(tree);
}
private static BusiBlocksTreeView PopulateTreeView(string username)
{
var catTreeView = new BusiBlocksTreeView();
IList <Category> cats = GetAllCategories();
IList <Category> toRemove = new List <Category>();
foreach (Category cat in cats)
{
// Remove this category from the list if it is not viewable by this user.
if (!SecurityHelper.CanUserView(username, cat.Id))
{
toRemove.Add(cat);
}
}
foreach (Category cat in toRemove)
{
cats.Remove(cat);
}
// Need to form the hierarchical structure by selecting the categories with no parent
// and then adding sub collections of categories with the chosen parent.
var noParent =
from x in cats
where x.ParentCategory == null
select x;
int maxLevel = 20;
if (!noParent.Any())
{
// Try to pick the "all docs" category.
noParent =
from x in cats
where x.DisplayName.Equals("All Documents")
select x;
}
foreach (Category cat in noParent)
{
var node = new BusiBlocksTreeNode {
Id = cat.Id, Name = cat.DisplayName, IsFolder = true
};
IList <Article> items = GetArticles(cat, ArticleStatus.All, false);
foreach (Article item in items)
{
node.ChildNodes.Add(new BusiBlocksTreeNode {
Id = item.Id, Name = item.Name, IsFolder = false
});
}
catTreeView.Nodes.Add(node);
PopulateSub(cat, cats, node, maxLevel, 0);
}
// todo Remove this commented out block when we're sure it isn't doing anything.
//// Set the selected category.
//if (noParent.Any())
//{
// Category cat = noParent.First();
//}
return(catTreeView);
}
