/// <summary>
/// Adds an attribute to the name.
/// </summary>
/// <param name="sb">The <see cref="StringBuilder"/> containing the name.</param>
/// <param name="type">The type of the attribute.</param>
/// <param name="value">The value of the attribute.</param>
/// <exception cref="ArgumentNullException"><paramref name="sb"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="type"/> is not a valid attribute type.</exception>
static void AddAttribute(StringBuilder sb, string type, object value)
{
if (sb == null)
{
throw new ArgumentNullException("sb");
}
if (false == RdnSequence.IsValidAttributeType(type))
{
throw new ArgumentOutOfRangeException("type", type, "The value is not a valid attribute type.");
}
if (sb.Length > 0)
{
// Add delimiter
sb.Append(",");
}
sb.Append(type.ToUpper());
sb.Append('=');
var escapedValue = RdnSequence.EscapeValue(value);
sb.Append(escapedValue);
}
