/// <summary>
/// Method validates lender name, phone, email and address as input.
/// If invalid error messages will be shown. Method will
/// return true if valid, else false.
/// </summary>
/// <returns>A boolean value</returns>
public bool ValidateInput()
{
// Validates input as boolean values
bool nameOk = bookLender.ValidateInput();
bool phoneOk = bookLender.MyPhone.ValidateInput();
bool emailOk = bookLender.MyEmail.ValidateInput();
bool addressOk = bookLender.MyAddress.ValidateInput();
// Error messages, if invalid input
ErrorMessages(nameOk, phoneOk, emailOk, addressOk);
// If all valid input returns true else false
return(nameOk && phoneOk && emailOk && addressOk);
}
