/// <summary>
        /// Applies the condition to the web request.
        /// </summary>
        /// <param name="request">The request to be modified.</param>
        /// <param name="accessCondition">Access condition to be added to the request.</param>
        internal static void ApplyAccessCondition(this HttpRequestMessage request, AccessCondition accessCondition)
        {
            if (accessCondition != null)
            {
                if (!string.IsNullOrEmpty(accessCondition.IfMatchETag))
                {
                    request.Headers.IfMatch.Add(EntityTagHeaderValue.Parse(accessCondition.IfMatchETag));
                }

                if (!string.IsNullOrEmpty(accessCondition.IfNoneMatchETag))
                {
                    if (accessCondition.IfNoneMatchETag.Equals(EntityTagHeaderValue.Any.ToString(), StringComparison.OrdinalIgnoreCase))
                    {
                        request.Headers.IfNoneMatch.Add(EntityTagHeaderValue.Any);
                    }
                    else
                    {
                        request.Headers.IfNoneMatch.Add(EntityTagHeaderValue.Parse(accessCondition.IfNoneMatchETag));
                    }
                }

                request.Headers.IfModifiedSince = accessCondition.IfModifiedSinceTime;
                request.Headers.IfUnmodifiedSince = accessCondition.IfNotModifiedSinceTime;

                request.ApplyLeaseId(accessCondition);
            }
        }
        /// <summary>
        /// Applies the condition to the web request.
        /// </summary>
        /// <param name="request">The request to be modified.</param>
        /// <param name="accessCondition">Access condition to be added to the request.</param>
        internal static void ApplyAccessCondition(this HttpWebRequest request, AccessCondition accessCondition)
        {
            if (accessCondition != null)
            {
                if (!string.IsNullOrEmpty(accessCondition.IfMatchETag))
                {
                    request.Headers[HttpRequestHeader.IfMatch] = accessCondition.IfMatchETag;
                }

                if (!string.IsNullOrEmpty(accessCondition.IfNoneMatchETag))
                {
                    request.Headers[HttpRequestHeader.IfNoneMatch] = accessCondition.IfNoneMatchETag;
                }

                if (accessCondition.IfModifiedSinceTime.HasValue)
                {
#if WINDOWS_PHONE
                    request.Headers[HttpRequestHeader.IfModifiedSince] =
                        HttpWebUtility.ConvertDateTimeToHttpString(accessCondition.IfModifiedSinceTime.Value);
#else
                    // Not using this property will cause Restricted property exception to be thrown
                    request.IfModifiedSince = accessCondition.IfModifiedSinceTime.Value.UtcDateTime;
#endif
                }

                if (accessCondition.IfNotModifiedSinceTime.HasValue)
                {
                    request.Headers[HttpRequestHeader.IfUnmodifiedSince] =
                        HttpWebUtility.ConvertDateTimeToHttpString(accessCondition.IfNotModifiedSinceTime.Value);
                }

                request.ApplyLeaseId(accessCondition);
            }
        }