async Task <Entry[]> GetCategoriesEntriesAsync(BudgetCategoriesViewModel vm, bool fullSize)
{
var context = vm.BudgetCategories;
List <Entry> entries = new List <Entry>();
var fltCatExpenseSum = (float)context.Where(c => c.CategoryType == BudgetCategoryType.Expense).Sum(c => c.Amount);
var fltCatIncomeSum = (float)context.Where(c => c.CategoryType == BudgetCategoryType.Income).Sum(c => c.Amount);
Entry[] _entryArray;
if (fullSize)
{
_entryArray = new Entry[]
{
EntryUtility.GetEntry(fltCatExpenseSum, SKColors.Red, "Expenses", fltCatExpenseSum.ToString("C")),
EntryUtility.GetEntry(fltCatIncomeSum, SKColors.Green, "Income", fltCatIncomeSum.ToString("C"))
};
}
else
{
_entryArray = new Entry[]
{
EntryUtility.GetEntry(fltCatExpenseSum, SKColors.Red, "Expenses"),
EntryUtility.GetEntry(fltCatIncomeSum, SKColors.Green, "Income")
};
}
var _entries = await BuildEntryCollectionAsync(_entryArray);
entries.AddRange(_entries.ToList());
return(entries.ToArray());
}
public async Task <BudgetCategoriesViewModel> GetBudgetCategoriesViewModelAsync()
{
BudgetCategoriesViewModel vm = new BudgetCategoriesViewModel(this.dbFilePath);
await vm.LoadVMAsync();
return(vm);
}
protected override void OnDisappearing()
{
base.OnDisappearing();
vm?.Dispose();
vm = null;
chartIncome.Chart = null;
chartExpenses.Chart = null;
}
public async Task <Chart> GetChartAsync(BudgetCategoriesViewModel vm, bool fullSize = false)
{
var entries = await GetEntriesAsync(vm, fullSize);
return(new BarChart()
{
Entries = entries
});
}
protected async override void OnAppearing()
{
base.OnAppearing();
vm = await ds.GetBudgetCategoriesViewModelAsync();
vm.SelectedBudgetCategory = null;
//chartCategories.Chart = await ChartUtility.Instance.GetChartAsync(vm);
var provider = new MicrochartsProvider <BudgetCategoriesViewModel>();
chartIncome.Chart = await provider.GetChartAsync(vm, 0, false);
chartExpenses.Chart = await provider.GetChartAsync(vm, 1, false);
this.BindingContext = vm;
}
async Task <Entry[]> GetEntriesAsync(BudgetCategoriesViewModel vm, bool fullSize)
{
return(await GetCategoriesEntriesAsync(vm, fullSize));
}
