private void RaiseTreeItemDelete(object knowlegeGroupViewModel)
{
if ((knowlegeGroupViewModel as KnowledgeGroupViewModel) != null)
{
SelectedKnowledgeGroup = (knowlegeGroupViewModel as KnowledgeGroupViewModel);
}
bool canDelete = false;
if (SelectedKnowledgeGroup != null)
{
var articles = GetKnowledgeBaseArticles(SelectedKnowledgeGroup as KnowledgeGroupViewModel);
var children = (SelectedKnowledgeGroup as KnowledgeGroupViewModel).GetChildren((SelectedKnowledgeGroup as KnowledgeGroupViewModel).OriginalItem);
//var subGroup = _customersRepository.KnowledgeBaseGroups.Where(x => x.Parent.KnowledgeBaseGroupId == (SelectedKnowledgeGroup as KnowledgeGroupViewModel).OriginalItem.KnowledgeBaseGroupId).ToList();
canDelete = (articles != null && articles.Count() == 0 && children != null && children.Count() == 0);
}
if (CommonConfirmRequest != null && canDelete)
{
CommonConfirmRequest.Raise(
new Confirmation
{
Title = "Remove group?".Localize(),
Content = (SelectedKnowledgeGroup as KnowledgeGroupViewModel).InnerItem.Name
},
(x) =>
{
if (x.Confirmed)
{
Task.Factory.StartNew(() =>
{
ShowLoadingAnimation = true;
(SelectedKnowledgeGroup as KnowledgeGroupViewModel).RemoveFromDB();
})
.ContinueWith(t =>
{
if (t.Exception == null)
{
OnUIThread(() =>
{
if ((SelectedKnowledgeGroup as KnowledgeGroupViewModel).Parent != null)
{
SelectedKnowledgeGroup = (SelectedKnowledgeGroup as KnowledgeGroupViewModel).Parent;
(SelectedKnowledgeGroup as KnowledgeGroupViewModel).Refresh();
}
else
{
RootKnowledgeGroups.Remove(SelectedKnowledgeGroup as KnowledgeGroupViewModel);
SelectedKnowledgeGroup = null;
}
//TODO: update treeview
});
}
ShowLoadingAnimation = false;
});
}
}
);
}
}
public void Drop(DropInfo dropInfo)
{
var droppedVM = dropInfo.Data;
var targetVM = dropInfo.TargetItem;
if (droppedVM is IHierarchy)
{
// preparing to refresh UI
var sourceVM = droppedVM as HierarchyViewModelBase;
var sourceParentVM = sourceVM.Parent;
Task.Factory.StartNew(() =>
{
ShowLoadingAnimation = true;
((IHierarchy)droppedVM).SetParent(null, targetVM);
})
.ContinueWith(t =>
{
if (t.Exception == null)
{
OnUIThread(() =>
{
// refresh UI
if (sourceParentVM != null)
{
sourceParentVM.LoadChildrens();
}
else
{
RootKnowledgeGroups.Remove(droppedVM as KnowledgeGroupViewModel);
}
((HierarchyViewModelBase)targetVM).LoadChildrens();
});
}
ShowLoadingAnimation = false;
});
}
}