/// <summary>
/// Loads the tree.
/// </summary>
/// <returns>Task.</returns>
private async Task LoadTree()
{
tvwLibrary.Items.Clear();
lblLoading.Visibility = Visibility.Visible;
//grab UI context so we can update within the below task
var ui = TaskScheduler.FromCurrentSynchronizationContext();
//this whole async thing doesn't really work in this instance since all my work pretty much needs to be on the UI thread...
Cursor = Cursors.Wait;
await Task.Run(() =>
{
IEnumerable <BaseItem> children = CurrentUser.Name == "Physical" ? _libraryManager.RootFolder.Children : _libraryManager.RootFolder.GetChildren(CurrentUser, true);
children = OrderByName(children, CurrentUser);
foreach (Folder folder in children)
{
var currentFolder = folder;
Task.Factory.StartNew(() =>
{
var prefs = ddlProfile.SelectedItem != null ? _displayPreferencesManager.GetDisplayPreferences(currentFolder.DisplayPreferencesId, (ddlProfile.SelectedItem as User).Id, "LibraryExplorer") ?? new DisplayPreferences {
SortBy = ItemSortBy.SortName
} : new DisplayPreferences {
SortBy = ItemSortBy.SortName
};
var node = new TreeViewItem {
Tag = currentFolder
};
var subChildren = currentFolder.GetChildren(CurrentUser, true, prefs.IndexBy);
subChildren = OrderByName(subChildren, CurrentUser);
AddChildren(node, subChildren, CurrentUser);
node.Header = currentFolder.Name + " (" +
node.Items.Count + ")";
tvwLibrary.Items.Add(node);
}, CancellationToken.None, TaskCreationOptions.None, ui);
}
});
lblLoading.Visibility = Visibility.Hidden;
Cursor = Cursors.Arrow;
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
public object Get(GetDisplayPreferences request)
{
Guid displayPreferencesId;
if (!Guid.TryParse(request.Id, out displayPreferencesId))
{
displayPreferencesId = request.Id.GetMD5();
}
var result = _displayPreferencesManager.GetDisplayPreferences(displayPreferencesId, request.UserId, request.Client);
return(ToOptimizedSerializedResultUsingCache(result));
}
/// <summary>
/// Adds the children.
/// </summary>
/// <param name="parent">The parent.</param>
/// <param name="children">The children.</param>
/// <param name="user">The user.</param>
private void AddChildren(TreeNode parent, IEnumerable <BaseItem> children, User user, bool isPhysical)
{
foreach (var item in children)
{
var node = new TreeNode {
Tag = item
};
var subFolder = item as Folder;
if (subFolder != null)
{
var prefs = _displayPreferencesManager.GetDisplayPreferences(subFolder.DisplayPreferencesId, user.Id, "LibraryExplorer");
var subChildren = isPhysical ? subFolder.Children : subFolder.GetChildren(_currentUser, true);
AddChildren(node, OrderBy(subChildren, user, prefs.SortBy), user, isPhysical);
node.Text = item.Name + " (" + node.Nodes.Count + ")";
}
else
{
node.Text = item.Name;
}
parent.Nodes.Add(node);
}
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
public object Get(GetDisplayPreferences request)
{
var result = _displayPreferencesManager.GetDisplayPreferences(request.Id, request.UserId, request.Client);
return(ToOptimizedResult(result));
}