public static bool IsUniqueEntry(TextBox textBox)
{
bool success = true;
if ("Product Code".Equals(textBox.Tag))
{
Product[] products = ProductDB.GetProducts();
if (products != null)
{
for (int i = 0; i < ProductDB.count; i++)
{
if (products[i].Code.Equals(int.Parse(textBox.Text)))
{
MessageBox.Show(textBox.Tag + " already exists, please enter new unique value.", Title);
textBox.Clear();
textBox.Focus();
success = false;
}
}
}
}
if ("Technician ID".Equals(textBox.Tag))
{
Technician[] technicians = TechnicianDB.GetTechnicians();
if (technicians != null)
{
for (int i = 0; i < TechnicianDB.count; i++)
{
if (technicians[i].ID.Equals(int.Parse(textBox.Text)))
{
MessageBox.Show(textBox.Tag + " already exists, please enter new unique value.", Title);
textBox.Clear();
textBox.Focus();
success = false;
}
}
}
}
if ("Customer ID".Equals(textBox.Tag))
{
Customer[] customers = CustomerDB.GetCustomers();
if (customers != null)
{
for (int i = 0; i < CustomerDB.count; i++)
{
if (customers[i].ID.Equals(int.Parse(textBox.Text)))
{
MessageBox.Show(textBox.Tag + " already exists, please enter new unique value.", Title);
textBox.Clear();
textBox.Focus();
success = false;
}
}
}
}
return(success);
}
private void MaintainTechnician_Load(object sender, EventArgs e)
{
techs = TechnicianDB.GetTechnicians();
if (techs != null)
{
FillTechnicianListBox();
}
}
private void btnTechnicianModify_Click(object sender, EventArgs e)
{
try
{
int i = lstTechnician.SelectedIndex;
TechnicianForm techForm = new TechnicianForm();
if (i != -1)
{
Technician technician = techs[i];
techForm.SetTechFormFields(technician);
technician.ID = 0;
technician.Name = null;
technician.Email = null;
technician.Phone = null;
MessageBox.Show("Modify the record and click save !");
FillTechnicianListBox();
technician = techForm.GetNewTechnician();
if (technician != null)
{
if (TechnicianDB.AddTechnician(technician))
{
MessageBox.Show("Technician added successfully !");
FillTechnicianListBox();
}
else
{
MessageBox.Show("Failed to add Technician");
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
private void btnTechnicianAdd_Click(object sender, EventArgs e)
{
try
{
TechnicianForm tech = new TechnicianForm();
Technician t = tech.GetNewTechnician();
if (t != null)
{
if (TechnicianDB.AddTechnician(t))
{
MessageBox.Show("Technician added successfully !");
FillTechnicianListBox();
}
else
{
MessageBox.Show("Failed to add Technician");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}