private void buttonOKClicked(UIAlertController textInputAlertController) { Database_interaction db = new Database_interaction(); db.AddBudget(new Budget(float.Parse(textInputAlertController.TextFields[0].Text), DateTime.Now)); Budget budget = db.GetBudget(DateTime.Now); float totalcost = db.GetTotalCostMonth(DateTime.Now); if (budget != null) { lblmonth.Text = "This Month's Budget: " + budget.BudgetAmount.ToString(); lblRemaining.Text = "Remaining Budget: " + (budget.BudgetAmount - totalcost).ToString(); lblTotalCost.Text = "Total Cost This Month: " + totalcost.ToString(); } else { lblmonth.Text = "This Month's Budget: Not Set"; lblRemaining.Text = "Remaining Budget: 0"; lblTotalCost.Text = "Total Cost This Month: 0"; } }