public string ToString(ToStringFormat format)
{
StringBuilder sb = new StringBuilder();
string delimiter = "==";
string result = string.Empty;
if (((int)format & (int)ToStringFormat.Name) == 1)
{
sb.Append(Name).Append(delimiter);
}
if (((int)format & (int)ToStringFormat.Phone) == 2)
{
sb.Append(ContactPhone).Append(delimiter);
}
if (((int)format & (int)ToStringFormat.Revenue) == 4)
{
sb.Append(string.Format("{0:N2}", Revenue)).Append(delimiter);
}
result = sb.ToString();
if (result.Split(delimiter.ToCharArray()).Length > 1)
{
return(result.Replace(delimiter, ", ").TrimEnd(", ".ToCharArray()));
}
else
{
return(result.Replace(delimiter, string.Empty));
}
}
/// <returns><see cref="object.ToString()"/> or the return value of <see cref="StringFormat"/> when provided.</returns>
public override string ToString()
{
return($"{ToStringFormat?.Invoke(this, GetFormattedName(), GetFormattedValue()) ?? $"{GetFormattedName()}: {GetFormattedValue()}"}[]");
}
public string Customer_ToString_Test(string name, string phone, decimal revenue, ToStringFormat format)
{
Customer customer = new Customer(name, phone, revenue);
return(customer.ToString(format));
}
