[Obsolete(“The provider argument is not used. Please use ToString(String).”)]
public string ToString(string format, IFormatProvider provider)
{
return this.ToString(format);
}

[Obsolete(“The provider argument is not used. Please use ToString().”)]
public string ToString(IFormatProvider provider)
{
return this.ToString();
}

public string ToString(string format)
{
if ((format null) || (format.Length 0))
{
format = “G”;
}
if (string.Compare(format, “G”, StringComparison.OrdinalIgnoreCase) != 0)
{
if (string.Compare(format, “D”, StringComparison.OrdinalIgnoreCase) != 0)
{
if (string.Compare(format, “X”, StringComparison.OrdinalIgnoreCase) != 0)
{
if (string.Compare(format, “F”, StringComparison.OrdinalIgnoreCase) != 0)
{
throw new FormatException(Environment.GetResourceString(“Format_InvalidEnumFormatSpecification”));
}
return Enum.InternalFlagsFormat(base.GetType(), this.GetValue());
}
return this.ToHexString();
}
return this.GetValue().ToString();
}
return this.ToString();
}