public CategoryPage(EntryPageViewModel viewModel, string selectedenvelope, string month)
{
InitializeComponent();
BindingContext = viewModel;
obj = viewModel;//since viewModel has scope only inside constructor bit we need viewModel obj outside constructor as well
listview.ItemsSource = viewModel.envelope;
ToolbarItem item1 = new ToolbarItem
{
Text = selectedenvelope + " Details",
Priority = 0,
Order = ToolbarItemOrder.Primary
};
ToolbarItem item2 = new ToolbarItem
{
Text = month,
Priority = 0,
Order = ToolbarItemOrder.Primary
};
// "this" refers to a Page object
ToolbarItems.Add(item1);
ToolbarItems.Add(item2);
// BindingContext = viewModel;
// listview.ItemsSource = viewModel.envelope;
}
private async void CheckExpense()
{
var hasTransaction = File.Exists(App.transaction_filemane);
if (!hasTransaction)
{
File.Create(App.transaction_filemane);
}
else
{
//read transactions
EntryPageViewModel.ReadAllTransactions(viewModel.transactions, App.transaction_filemane);
viewModel.UpdateExpenses(viewModel.expenses, viewModel.currentMonth, viewModel.transactions);
}
MonthPicker.SelectedIndex = viewModel.currentMonth - 1;
}