private void RemoveGroup(Group gItem)
{
try
{
_cache.RemoveGroup(gItem);
if (SelectedGroup == gItem)
{
SelectedGroup = ListGroups.FirstOrDefault();
}
}
catch (WebException e)
{
ShowPopupWebException(e);
}
}
public ManageGroupsViewModel(ISourcesCacheProvider cacheProvider, IDockWindow window)
{
_cache = cacheProvider.CurrentCache;
_window = window;
Title = "Manage Groups";
_cache.Groups
.Connect()
.Sort(SortExpressionComparer <Group>
.Ascending(x => x.ID))
.ObserveOnDispatcher()
.Bind(out _listGroups)
.Subscribe()
.DisposeWith(Disposables);
_cache.InstancesWithoutGroup
.Connect()
.Sort(SortExpressionComparer <Instance>
.Ascending(x => x.ID))
.ObserveOnDispatcher()
.Bind(out _listWithoutGroup)
.Subscribe()
.DisposeWith(Disposables);
var dynamicInListFilter = this
.WhenAnyValue(x => x.SelectedGroup)
.Select(g => (Func <Group, bool>)(x => g != null && x.ID == g.ID));
_cache.Groups
.Connect()
.Filter(dynamicInListFilter)
.TransformMany(x => x.Instances, x => x.ID)
.Sort(SortExpressionComparer <Instance>
.Ascending(x => x.ID))
.ObserveOnDispatcher()
.Bind(out _listInGroup)
.Subscribe()
.DisposeWith(Disposables);
SelectedGroup = ListGroups.FirstOrDefault();
RemoveGroupCommand = ReactiveCommand.Create <Group>(RemoveGroup);
CreateGroupCommand = ReactiveCommand.CreateFromTask(CreateGroup);
}