// CUSTOMER SEARCH BUTTON click event
private void btn_CustomerSearch_Click(object sender, EventArgs e)
{
// Make sure all controls are visible
gbx_SearchCriteria.Visible = true;
btn_ViewOrders.Visible = true;
btn_CreateCustomer.Visible = true;
btn_CustomerSearch.Visible = true;;
btn_MainPage.Visible = true;
btn_EnableEditing.Visible = true;
btn_NewOrder.Visible = true;
btn_SaveChanges.Visible = false;
lbl_CustomerResultSort.Visible = false;
//Make all customer data fields read-only by default
MakeReadOnly();
//Reset form to prepare for new search results
ClearResults();
// Verify that a query type was selected by the user
if ((cbx_CustomerSearchType.SelectedItem == null) || (tbx_CustomerSearchInput.Text == null))
{
ApplicationObjects.DisplayInvalidInput("Please make sure all search criterea is filled out.");
return;
}
// SEARCH BY CUSTOMER FIRST NAME - Chech to see if user entered a customer first name
else if (cbx_CustomerSearchType.SelectedItem.ToString() == "First Name")
{
// Generate a list of customers that match the first name entered by the user
customers = ApplicationObjects.GetCustomerByFirstName(tbx_CustomerSearchInput.Text);
// If customer list is empty, display no results found
if (customers == null)
{
lbl_CustomerResultsFound.Text = "No results found!";
}
else
{
// Populate the search results combo box with result first and last names
foreach (Customer customer in customers)
{
cbx_CustomerResultsList.Items.Add(customer.FirstName + " " + customer.LastName);
}
// Change result label to show how results are listed in the results combobox
lbl_CustomerResultSort.Text = "results listed by [first name] [last name]";
lbl_CustomerResultsFound.Text = cbx_CustomerResultsList.Items.Count.ToString() + " results found!";
}
}
// SEARCH BY CUSTOMER LAST NAME - Check to see if user entered a customer last name
else if (cbx_CustomerSearchType.SelectedItem.ToString() == "Last Name")
{
// Generate a list of customers that match the last name entered by the user
customers = ApplicationObjects.GetCustomerByLastName(tbx_CustomerSearchInput.Text);
if (customers == null)
{
lbl_CustomerResultsFound.Text = "No results found!";
}
else
{
// Populate the search results combo box with result last, first names
foreach (Customer customer in customers)
{
cbx_CustomerResultsList.Items.Add(customer.LastName + ", " + customer.FirstName);
}
// Change result label to show how results are listed in the results combobox
lbl_CustomerResultSort.Text = "results listed by [last name], [first name]";
lbl_CustomerResultsFound.Text = cbx_CustomerResultsList.Items.Count.ToString() + " results found!";
}
}
// SEARCH BY CUSTOMER ID - Check to see if user entered a customer ID
else if (cbx_CustomerSearchType.SelectedItem.ToString() == "Customer ID")
{ //if invalid Guid, display error
if (!Guid.TryParse((tbx_CustomerSearchInput.Text), out guidValidation))
{
ApplicationObjects.DisplayInvalidInput("Invalid customer ID. Please try again.");
return;
}
//If valid Guid, continue with search
else
{
// Generate a list of customers that match the customer ID entered by the user
customers = ApplicationObjects.GetCustomerByCustomerId(Guid.Parse(tbx_CustomerSearchInput.Text));
if (customers == null)
{
lbl_CustomerResultsFound.Text = "No results found!";
}
else
{
// Populate the search results combo box with result last, first names
foreach (Customer customer in customers)
{
cbx_CustomerResultsList.Items.Add(customer.CustomerId.ToString());
}
// Change result label to show how results are listed in the results combobox
lbl_CustomerResultSort.Text = "results listed by [customer id]";
lbl_CustomerResultsFound.Text = cbx_CustomerResultsList.Items.Count.ToString() + " results found!";
}
}
}
// SEARCH BY CUSTOMER PHONE NUMBER - Check to see if user entered a customer phone number
else if (cbx_CustomerSearchType.SelectedItem.ToString() == "Phone Number")
{
// Validate numeric input for phone number
if ((!long.TryParse((tbx_CustomerSearchInput.Text), out longValidation)) || (tbx_CustomerSearchInput.Text.Length != 10))
{
ApplicationObjects.DisplayInvalidInput("Invalid phone number entered. Please enter 10 digits (no dashes) & try again.");
return;
}
else
{
// Generate a list of customers that match the phone number entered by the user
customers = ApplicationObjects.GetCustomerByPhoneNumber(tbx_CustomerSearchInput.Text);
// If customer list is empty, display no results found
if (customers == null)
{
lbl_CustomerResultsFound.Text = "No results found!";
}
else
{
// Populate the search results combo box with result last, first names
foreach (Customer customer in customers)
{
cbx_CustomerResultsList.Items.Add(customer.PhoneNumber);
}
// Change result label to show how results are listed in the results combobox
lbl_CustomerResultSort.Text = "results listed by [phone number]";
lbl_CustomerResultsFound.Text = cbx_CustomerResultsList.Items.Count.ToString() + " results found!";
}
}
}
// SEARCH BY CUSTOMER EMAIL ADDRESS - Check to see if user entered a customer email address
else if (cbx_CustomerSearchType.SelectedItem.ToString() == "Email Address")
{
// validate email address format
if (!ApplicationObjects.EmailIsValid(tbx_CustomerSearchInput.Text))
{
ApplicationObjects.DisplayInvalidInput("Invalid e-mail address entered. Please try again.");
return;
}
else
{
// Generate a list of customers that match the email address entered by the user
customers = ApplicationObjects.GetCustomerByEmail(tbx_CustomerSearchInput.Text);
// If customer list is empty, display no results found
if (customers == null)
{
lbl_CustomerResultsFound.Text = "No results found!";
}
else
{
// Populate the search results combo box with result last, first names
foreach (Customer customer in customers)
{
cbx_CustomerResultsList.Items.Add(customer.EmailAddress);
}
// Change result label to show how results are listed in the results combobox
lbl_CustomerResultSort.Text = "results listed by [email address]";
lbl_CustomerResultsFound.Text = cbx_CustomerResultsList.Items.Count.ToString() + " results found!";
}
}
}
// If the customer list is empty (no results found)
if (customers.Count == 0)
{ // Display no results found
lbl_CustomerResultsFound.Text = "No results found!";
return;
}
// If customer list is not empty, display results
else
{
lbl_CustomerResultSort.Visible = true;
cbx_CustomerResultsList.Visible = true;
cbx_CustomerResultsList.SelectedIndex = 0;
//Populate Customer details for first search result
PopulateCustomerDetailsWithSelectedIndex();
}
}