/// <summary>
/// Initialize the list of root folders.
/// </summary>
private void InitializeFolders()
{
lock (DataModel.SyncRoot)
{
LambdaComparer <FolderTreeNode> folderTreeNodeComparer = new LambdaComparer <FolderTreeNode>((l, r) => l.Entity.Name.CompareTo(r.Entity.Name));
List <FolderTreeNode> folders = new List <FolderTreeNode>();
var entities = DataModel.Entity.Where(row =>
(row.GetFolderRows().Length > 0 || row.GetBlotterRows().Length > 0));
foreach (EntityRow entityRow in entities)
{
Boolean topLevel = true;
// Determine whether a folder/blotter has any parent folders or blotters.
foreach (EntityTreeRow entityTreeRow in entityRow.GetEntityTreeRowsByFK_Entity_EntityTree_ChildId())
{
EntityRow parent = entityTreeRow.EntityRowByFK_Entity_EntityTree_ParentId;
if (parent.GetFolderRows().Length > 0 || parent.GetBlotterRows().Length > 0)
{
topLevel = false;
break;
}
}
// If they don't add them to our list.
if (topLevel)
{
FolderTreeNode folderTreeNode = new FolderTreeNode(entityRow);
Int32 index = folders.BinarySearch(folderTreeNode, folderTreeNodeComparer);
if (index < 0)
{
index = ~index;
}
folders.Insert(index, folderTreeNode);
}
}
this.Dispatcher.BeginInvoke(new Action(() => this.Folders = folders), DispatcherPriority.Normal);
}
}