//add, update, search, delete
private void btnAdd_Click(object sender, EventArgs e)
{
GlobalVariable.selectedCustomerID = 0;
frmCustomerAdd editForm = new frmCustomerAdd();
editForm.ShowDialog();
lvCustomers.Items.Clear();
DisplayCustomers();
}
private void btnUpdate_Click(object sender, EventArgs e)
{
if (lvCustomers.SelectedItems.Count == 0)
{
MessageBox.Show("Please select a Customer to update.");
return;
}
GlobalVariable.selectedCustomerID = int.Parse(lvCustomers.SelectedItems[0].Text);
frmCustomerAdd editForm = new frmCustomerAdd();
editForm.ShowDialog();
lvCustomers.Items.Clear();
DisplayCustomers();
}