private void btnSubmit_Click(object sender, RoutedEventArgs e)
{
//https://www.youtube.com/watch?v=RJvKaHPc8Dc
DB_128040_practiceEntities db = new DB_128040_practiceEntities();
//string output = $"{Customer.FirstName}/{Customer.LastName}/{Customer.ID}";
if (int.TryParse(txtBoxInput.Text, out int CustomerID) == true)
{
int custID = Convert.ToInt32(txtBoxInput.Text);
List <Customer> c = new List <Customer>();
foreach (var x in db.Customers)
{
if (x.CustomerID == custID)
{
listBoxCustomer.Items.Add(x);
}
}
}
else
{
string city = txtBoxInput.Text;
//listBoxCustomer.Items.Add(output);
}
}