public CategoryRowViewModel(MasterCategoryRowViewModel masterCategory, Category category, BudgetEditorViewModel budgetEditor)
{
InitializeRelayCommands();
MasterCategory = masterCategory;
_category = category;
_budgetEditor = budgetEditor;
_categoryMonthViews = new TransformingObservableCollection <BudgetMonthViewModel, CategoryMonthViewModel>(
_budgetEditor.VisibleMonthViews, v =>
{
//BudgetMonthView holds it's own copy of the Budget and Categories so you have to match them up based on entityId
//instead of ReferenceEquals on the instance
BudgetMonthView view = v.BudgetMonthView;
MasterCategoryMonthView masterView = view.MasterCategories.Where(mcv => mcv.MasterCategory.EntityID == category.Parent.EntityID).Single();
var categoryMonthView = masterView.Categories.Where(c => c.Category.EntityID == _category.EntityID).SingleOrDefault();
if (categoryMonthView != null)
{
return(new CategoryMonthViewModel(v, this, categoryMonthView));
}
else
{
return(new CategoryMonthViewModel(v, this, masterView, _category.EntityID));
}
},
cmv =>
{
cmv.Dispose();
});
}
public MasterCategoryMonthViewModel(BudgetEditorViewModel budgetEditor,
BudgetMonthViewModel budgetMonthViewModel,
MasterCategoryRowViewModel masterCategoryRow,
MasterCategoryMonthView masterCategoryMonthView)
{
_budgetEditor = budgetEditor ?? throw new ArgumentNullException(nameof(budgetEditor));
_budgetMonthViewModel = budgetMonthViewModel ?? throw new ArgumentNullException(nameof(budgetMonthViewModel));
_masterCategoryRow = masterCategoryRow ?? throw new ArgumentNullException(nameof(masterCategoryRow));
MasterCategoryMonthView = masterCategoryMonthView ?? throw new ArgumentNullException(nameof(masterCategoryMonthView));
}
private void CategoryCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.NewItems != null)
{
foreach (CategoryMonthView item in e.NewItems)
{
if (item.Category.EntityID == _categoryId)
{
CategoryMonthView = item;
_masterCategoryMonthView.Categories.CollectionChanged -= CategoryCollectionChanged;
_masterCategoryMonthView = null;
_categoryId = null;
}
}
}
}
private void InitializeMonthViews()
{
_masterCategoryMonthViews = new TransformingObservableCollection <BudgetMonthViewModel, MasterCategoryMonthViewModel>(
_budgetEditor.VisibleMonthViews, v =>
{
//BudgetMonthView holds it's own copy of the Budget and Categories so you have to match them up based on entityId
//instead of ReferenceEquals on the instance
BudgetMonthView view = v.BudgetMonthView;
MasterCategoryMonthView masterView = view.MasterCategories.Where(mcv => mcv.MasterCategory.EntityID == _masterCategory.EntityID).SingleOrDefault();
if (masterView != null)
{
return(new MasterCategoryMonthViewModel(_budgetEditor, v, this, masterView));
}
else
{
return(new MasterCategoryMonthViewModel(_budgetEditor, v, this, view, _masterCategory.EntityID));
}
},
cmv =>
{
});
}
private void RegisterForCallBack(MasterCategoryMonthView masterCategoryMonthView, string categoryId)
{
_masterCategoryMonthView = masterCategoryMonthView;
_categoryId = categoryId;
masterCategoryMonthView.Categories.CollectionChanged += CategoryCollectionChanged;
}
public CategoryMonthViewModel(BudgetMonthViewModel budgetMonthViewModel, CategoryRowViewModel categoryRowViewModel, MasterCategoryMonthView masterCategoryMonthView, string categoryId)
{
BudgetMonthViewModel = budgetMonthViewModel;
CategoryRowViewModel = categoryRowViewModel;
RegisterForCallBack(masterCategoryMonthView, categoryId);
}
