Exemple #1
0
            /// <summary>
            /// Applies row key prefix criteria to given queryable which allows to query a range of rows
            /// </summary>
            /// <typeparam name="TEntity">The type of the entity to return.</typeparam>
            /// <param name="queryable">The queryable.</param>
            /// <param name="prefix">The row key prefix.</param>
            /// <returns>An instance of <see cref="IQueryable"/> that alllow further criterias to be added</returns>
            public static IQueryable <TEntity> WhereRowKeyPrefix <TEntity>(this IQueryable <TEntity> queryable, string prefix) where TEntity : ITableEntity, new()
            {
                var range = new PrefixRange(prefix);

                return(queryable.Where(x =>
                                       x.RowKey.CompareTo(range.Start) >= 0 &&
                                       x.RowKey.CompareTo(range.End) < 0));
            }
Exemple #2
0
            static string WhereRowKeyPrefixFilter(string prefix)
            {
                var range  = new PrefixRange(prefix);
                var filter =
                    TableQuery.CombineFilters(
                        TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.GreaterThanOrEqual, range.Start),
                        TableOperators.And,
                        TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.LessThan, range.End));

                return(filter);
            }