/// <summary>
/// Event-hanler for click event of update menu item of customer menu
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void updateToolStripMenuItem_Click(object sender, EventArgs e)
{
// Perform updation only when some customers already present.
if (lstCustomers.Items.Count != 0)
{
int index = lstCustomers.SelectedIndex;
//if no index is selected show error
if (index == -1)
{
MessageBox.Show("Please select an index", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
string str = lstCustomers.SelectedItem.ToString();
CustomerForm frmCustomer = new CustomerForm("Update Customer Info", InputUtility.GetWords(str));
customerMngr.Customers = storedCustomers;
customerMngr.Names = storeNames;
//if the customer clicks on OK button of the customer form then continue with the updation
if (frmCustomer.ShowDialog() == DialogResult.OK)
{
customerMngr.ChangeCustomer(frmCustomer.CustomerData, lstCustomers.SelectedIndex);
storedCustomers = customerMngr.Customers;
storeNames = customerMngr.Names;
//update the customer list
ChangedCustomerList();
}
}
else
{
//if listbox is empty show error
ShowError();
return;
}
}
/// <summary>
/// event-hanlre for the add customer menu item of customer Menu.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void addCustomerToolStripMenuItem_Click(object sender, EventArgs e)
{
//show customerform to enter the values
frmCustomer = new CustomerForm ("Add New Customer Info");
if (frmCustomer.ShowDialog() == DialogResult.OK)
{
//add new customer with help of customerMngr object
customerMngr.AddCustomer(frmCustomer.CustomerData);
//Update the customer list and updates the files
UpdateCustomerList();
}
}