private void GenerateCustomerCode()
{
if (CustomerNameTextBox.Text.Length > 3)
{
Random random = new Random();
string CustomerCode = "";
string hexa = "abcdefghjkmnpqruvwxyz";
int a = 1;
int b = 20;
int c = 9;
int d = 99;
int e = 999;
CustomerCode += hexa.Substring(random.Next(0, b), 1).ToUpper();
CustomerCode += (random.Next(a, d)).ToString("0");
CustomerCode += hexa.Substring(random.Next(0, b), 1).ToUpper();
CustomerCode += (random.Next(a, e)).ToString("0");
if (context.Customers.SingleOrDefault(p => p.CustomerCode == CustomerCode) != null)
{
CustomerCode += (random.Next(a, c)).ToString("0");
}
CustomerCodeTextBox.Text = CustomerCode;
}
else
{
CustomerNameTextBox.Select();
}
}
private void AddCustomer()
{
if (CustomerNameTextBox.Text.Length > 3 && CustomerCodeTextBox.Text.Length > 3)
{
Customer cust = new Customer()
{
CustomerCode = CustomerCodeTextBox.Text,
Name = CustomerNameTextBox.Text,
EntryDate = DateTime.Now
};
if (context.Customers.SingleOrDefault(c => c.CustomerCode == cust.CustomerCode) != null)
{
MessageBox.Show("Cannot create duplicate");
}
else
{
context.Customers.Add(cust);
context.SaveChanges();
}
}
else
{
CustomerNameTextBox.Select();
}
}
public void ClearCustomerTextBoxes()
{
// RB sets all text boxes value to empty string
CustomerIDTextBox.Text = "";
CustomerNameTextBox.Text = "";
CustomerLastNameTextBox.Text = "";
CustomerAddressTextBox.Text = "";
// RB Set focus to Customer Name Field
CustomerNameTextBox.Select();
}