/// <summary>
/// Updates the entries (via Remove and Add) in the ALL items collection
/// with the entries in the <param name="viewModels"/> array parameter.
/// </summary>
/// <param name="viewModels"></param>
private void UpdateAllEntries(params VM[] viewModels)
{
Logger.InfoFormat("_");
_All.SuspendCollectionChangeNotification();
try
{
var removeItems = _All.Where(vm => !viewModels.Contains(vm)).ToList();
var addItems = viewModels.Where(vm => !_All.Contains(vm)).ToList();
foreach (var vm in removeItems)
{
_All.Remove(vm);
}
foreach (var vm in addItems)
{
_All.Add(vm);
}
}
finally
{
_All.NotifyChanges();
if (this.EntriesChanged != null)
{
this.EntriesChanged(this, EventArgs.Empty);
}
}
}
private void setEntries(params VM[] viewModels)
{
_subItemList = viewModels.ToList();
FastObservableCollection <VM> all = All as FastObservableCollection <VM>;
all.SuspendCollectionChangeNotification();
all.Clear();
all.NotifyChanges();
all.AddItems(viewModels);
all.NotifyChanges();
if (EntriesChanged != null)
{
EntriesChanged(this, EventArgs.Empty);
}
}
private void updateEntries(params VM[] viewModels)
{
FastObservableCollection <VM> all = All as FastObservableCollection <VM>;
all.SuspendCollectionChangeNotification();
var removeItems = all.Where(vm => !viewModels.Contains(vm)).ToList();
var addItems = viewModels.Where(vm => !all.Contains(vm)).ToList();
if (addItems.Count == 0 && removeItems.Count == 0)
{
return; //nothing to do here
}
foreach (var vm in removeItems)
{
all.Remove(vm);
}
foreach (var vm in addItems)
{
all.Add(vm);
}
_subItemList = all.ToArray().ToList();
all.NotifyChanges();
EntriesChanged?.Invoke(this, EventArgs.Empty);
}
private void updateEntries(params VM[] viewModels)
{
FastObservableCollection <VM> all = All as FastObservableCollection <VM>;
all.SuspendCollectionChangeNotification();
var removeItems = all.Where(vm => !viewModels.Contains(vm)).ToList();
var addItems = viewModels.Where(vm => !all.Contains(vm)).ToList();
foreach (var vm in removeItems)
{
all.Remove(vm);
}
foreach (var vm in addItems)
{
all.Add(vm);
}
_subItemList = all.ToArray().ToList();
all.NotifyChanges();
if (EntriesChanged != null)
{
EntriesChanged(this, EventArgs.Empty);
}
}
public static void Update <T>(this FastObservableCollection <T> source, IEnumerable <T> update)
{
source.SuspendCollectionChangeNotification();
try
{
Update((ObservableCollection <T>)source, update);
}
finally
{
source.NotifyChanges();
}
}
/// <summary>
/// Resets the entries (via Clear and Add) in the ALL items collection
/// with the entries in the <param name="viewModels"/> parameter.
/// </summary>
/// <param name="viewModels"></param>
private void ResetAllEntries(params VM[] viewModels)
{
Logger.InfoFormat("_");
FastObservableCollection <VM> all = this.All as FastObservableCollection <VM>;
all.SuspendCollectionChangeNotification();
try
{
all.Clear();
all.NotifyChanges();
all.AddItems(viewModels);
}
finally
{
all.NotifyChanges();
if (this.EntriesChanged != null)
{
this.EntriesChanged(this, EventArgs.Empty);
}
}
}