// Method checks validation user input when requesting the ID to be modified
private void ModifyCRMValidationInput()
{
bool IDisValid;
do
{
Console.Write("Please enter the customer ID of the customer to be modified: ");
id = Console.ReadLine();
// Here we use ID to modify as a means for the operator to input customer ID needed to be modified.
IDisValid = int.TryParse(id, out IDtoMofify);
if (IDtoMofify < 0)
{
Console.WriteLine("\nYou entered '{0}', which is not a positive integer", IDtoMofify);
Console.WriteLine("Enter an ID which is a positive integer\n");
IDisValid = false;
}
else if (!int.TryParse(id, out IDtoMofify))
{
Console.WriteLine("\nYou entered '{0}', which is not an integer", id);
Console.WriteLine("Enter an ID which is an integer\n");
IDisValid = false;
}
else if (Fleet.IsRenting(IDtoMofify))
{
Console.WriteLine("\nCould not modify customer ID '{0}' as this customer is currently renting a vehicle. Try another ID.\n",
IDtoMofify);
IDisValid = false;
}
} while (!IDisValid);
}
private void custRemoveButton_Click(object sender, EventArgs e)
{
bool exists = false;
if (int.TryParse(selectedIDTextBox.Text, out int ID))
{
foreach (Customer cust in custmers.Customers)
{
if (cust.ID == ID)
{
exists = true;
}
}
if (exists)
{
DialogResult dialogResult1 = MessageBox.Show(String.Format("Remove Customer {0}?", ID), "Remove Customer", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (dialogResult1 == DialogResult.Yes)
{
if (fleet.IsRenting(ID))
{
DialogResult dialogResult2 = MessageBox.Show(String.Format("Customer {0} is rentig!", ID), "Remove Customer", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
custmers.RemoveCustomer(GetCustomer(ID), fleet);
SetUpGridCustmer();
}
}
}
else
{
DialogResult dialogResult3 = MessageBox.Show(String.Format("ID Does not Exists!"), "Remove Customer", MessageBoxButtons.OK, MessageBoxIcon.Stop);
}
}
else
{
DialogResult dialogResult = MessageBox.Show(String.Format("ID must be a number!"), "Remove Customer", MessageBoxButtons.OK, MessageBoxIcon.Stop);
}
}
