public void Save(Expense expenseToSave)
{
Contract.Requires<ArgumentNullException>(expenseToSave != null, "The expense must not be null");
Contract.Requires<ArgumentNullException>(expenseToSave.CategoryId > 0, "There must be a category selected");
Contract.Requires<ArgumentNullException>(expenseToSave.PaymentMethodId > 0, "There must be a payment method selected");
_repository.Save(expenseToSave);
}
public void Create(Expense expense)
{
if (expense == null)
{
return;
}
CleanUpForEF(expense);
_context.Expenses.Add(expense);
_context.SaveChanges();
}
public void Save(Expense expense)
{
if (expense.Id != 0)
{
Update(expense);
}
else
{
Create(expense);
}
}
/// <summary>
/// Cancels the edit and leaves the form open
/// -clears any changes made
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnCancel_Click(object sender, EventArgs e)
{
// Enables the controls for editing and updates which buttons are visible
ToggleEnableControls(txtAmount, txtDetail, cmbCategory,
cmbPayment, dtPick, btnSave, btnEdit, btnCancel, btnDelete);
ToggleVisibility(btnSave, btnCancel, btnEdit, btnDelete);
// Makes sure that the expense of the binding has the origional values
currentExpense = originalExpense.Copy();
// Resets the data bindings
SetDataBindings();
}
/// <summary>
/// Sets the intial state and current state expense properties of the form
/// </summary>
/// <param name="expense">The expense the form was opened for</param>
public ExpenseViewer(Expense expense)
{
currentExpense = expense;
// Makes a shallow copy of the expense passed in
originalExpense = currentExpense.Copy();
InitializeComponent();
_dataContext = new AccountingDataContext();
_expenseService = new ExpenseService(new ExpenseRepository(_dataContext));
_expenseCategoryService = new ExpenseCategoryService(new ExpenseCategoryRepository(_dataContext));
_paymentMethodService = new PaymentMethodService(new PaymentMethodRepository(_dataContext));
}
private void SaveNewExpense(DateTime dtCurrentSaveDate)
{
var newExpense =
new Expense(decimal.Parse(txtAmount.Text), dtCurrentSaveDate,
_expenseCategoryService.LoadById(Convert.ToInt32(cmbCategory.SelectedValue)),
_paymentMethodService.LoadById(Convert.ToInt32(cmbPayment.SelectedValue)),
txtDetail.Text);
_expenseService.Create(newExpense);
}
/// <summary>
/// Saves the new expense into the cache -validates the amount
/// and gives an option to enter more data
/// </summary>
/// <param name="sender">Standard sender object</param>
/// <param name="e">Standard event object</param>
private void btnSave_Click(object sender, EventArgs e)
{
// If the amount is blank
if (txtAmount.Text == "")
{
MessageBox.Show("The amount can not be blank",
"Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error,
MessageBoxDefaultButton.Button1);
}
// Checks that the amount is in numbers
else if (!txtAmount.Text.IsDouble())
{
MessageBox.Show("The amount must be in numbers",
"Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error,
MessageBoxDefaultButton.Button1);
txtAmount.Text = "";
}
// Otherwise saves the new expense
else
{
var newExpense =
new Expense(decimal.Parse(txtAmount.Text), dtPick.Value,
_expenseCategoryService.LoadById(Convert.ToInt32(cmbCategory.SelectedValue)),
_paymentMethodService.LoadById(Convert.ToInt32(cmbPayment.SelectedValue)),
txtDetail.Text);
_expenseService.Create(newExpense);
// Asks if more data is being entered
DialogResult = MessageBox.Show("The entry was saved" +
"\nDo you want to add another expense? ",
"Save successful",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button1);
if (DialogResult != DialogResult.Yes)
{
Close();
}
// If more data is being entered clears the user entered data for the new data
else
{
// Puts the focus back to the top of the form and resets the selected values
cmbCategory.Focus();
txtAmount.Text = "";
txtDetail.Text = "";
}
}
}
public void Update(Expense expense)
{
_context.Expenses.Attach(expense);
_context.SaveChanges();
}
public void Create(Expense expense)
{
_context.Expenses.Add(expense);
_context.SaveChanges();
}
private void CleanUpForEF(Expense expense)
{
if (expense.CategoryId > 0)
{
expense.Category = null;
}
if (expense.PaymentMethodId > 0)
{
expense.Method = null;
}
}
public void Save(Expense expenseToSave)
{
_repository.Save(expenseToSave);
}
public void Create(Expense newExpense)
{
_repository.Create(newExpense);
}
