private void ContactDelete_button_Click(object sender, EventArgs e)
{
Book b = (Book)Books_ListBox.SelectedItem;
if (b == null)
{
return;
}
int index = Contacts_ListBox.SelectedIndex;
if (index < 0 || index >= b.getContacts().Count())
{
return;
}
Contact c = b.getContacts()[index];
b.getContacts().RemoveAt(index);
Contacts_ListBox.DataSource = null;
Contacts_ListBox.DataSource = b.getContacts();
if (index >= b.getContacts().Count())
{
index -= 1;
}
Contacts_ListBox.SelectedIndex = index;
toDeleteContacts.Add(c);
update(true);
}
private void Books_ListBox_SelectedIndexChanged(object sender, EventArgs e)
{
Book b = (Book)Books_ListBox.SelectedItem;
if (b == null)
{
return;
}
selectedBook = b;
if (b.getContacts().Count() == 0)
{
selectedContact = null;
}
else
{
selectedContact = b.getContacts()[0];
Contacts_ListBox.SelectedItem = selectedContact;
}
Books_ListBox.SelectedItem = b;
Contacts_ListBox.DataSource = b.getContacts();
}
public Contact getContactById(int id)
{
Book b = (Book)Books_ListBox.SelectedItem;
foreach (Contact c in b.getContacts())
{
if (c.id == id)
{
return(c);
}
}
return(null);
}
public void refreshContacts()
{
cm = (CurrencyManager)BindingContext[selectedBook.getContacts()];
cm.Refresh();
}