private void Window_Loaded(object sender, RoutedEventArgs e)
{
expenses = DataStorage.ReadXML <ObservableCollection <Expense> >("ExpenseData.xml");
if (expenses == null)
{
expenses = new ObservableCollection <Expense> {
new Expense {
description = "Edit Description", category = "Others", amount = 0.0, expenseDate = DateTime.Today
}
};
DataStorage.WriteXML <ObservableCollection <Expense> >(expenses, "ExpenseData.xml");
}
categories = GenerateCategory();
Lbx_expenses.ItemsSource = expenses;
Lbx_categories.ItemsSource = categories;
Cbx_category.ItemsSource = categoryNames;
Cbx_filterByCategory.ItemsSource = categoryNamesForFilter;
Cbx_filterByCategory.SelectedItem = "All";
ChangeTotalBudgetValues(totalBudget);
UpdateTotalBudget(totalBudget);
Tbx_filter.Text = "Enter text to Filter Expenses";
}
private void Cbx_filterByCategory_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (Cbx_filterByCategory.SelectedItem == null)
{
Cbx_filterByCategory.SelectedItem = "All";
return;
}
filterByCategory = Cbx_filterByCategory.SelectedItem.ToString();
ObservableCollection <Expense> allExpenses = DataStorage.ReadXML <ObservableCollection <Expense> >("ExpenseData.xml");
if (filterByCategory != "All")
{
ObservableCollection <Expense> filteredExpenses = new ObservableCollection <Expense>(from expense in allExpenses where expense.category.Equals(filterByCategory) select expense);
Lbx_expenses.ItemsSource = filteredExpenses;
Category category = (from cat in categories where cat.name.Equals(filterByCategory) select cat).First <Category>();
Lbx_categories.SelectedItem = category;
}
else
{
Lbx_expenses.ItemsSource = allExpenses;
}
}
private ObservableCollection <Category> GetExistingCategories()
{
ObservableCollection <Category> existingCategories = DataStorage.ReadXML <ObservableCollection <Category> >("CategoryData.xml");
return(existingCategories);
}