/// <summary>
/// Creates a new <see cref="IEntitySorter{TEntity}" /> that sorts a collection of
/// <typeparamref name="TEntity" /> objects in descending order by using the property, specified by it's
/// <paramref name="propertyName" />.
/// </summary>
/// <param name="propertyName">
/// Name of the property or a list of chained properties, separated by a dot.
/// </param>
/// <returns>
/// A new <see cref="IEntitySorter{TEntity}" />.
/// </returns>
/// <exception cref="ArgumentException">
/// Thrown when the specified <paramref name="propertyName" /> is
/// empty or when the specified property could not be found on the <typeparamref name="TEntity" />.
/// </exception>
/// <exception cref="ArgumentNullException">
/// Thrown when <paramref name="propertyName" /> is null.
/// </exception>
public static IEntitySorter <TEntity> OrderByDescending(string propertyName)
{
var builder = new EntitySorterBuilder <TEntity>(propertyName)
{
SortDirection = SortDirection.Descending
};
return(builder.BuildOrderByEntitySorter());
}
/// <summary>
/// Creates a new <see cref="IEntitySorter{TEntity}" /> that performs a subsequent ordering of the
/// elements in in a collection of <typeparamref name="TEntity" /> objects in ascending order
/// by using the property, specified by it's <paramref name="propertyName" />.
/// </summary>
/// <typeparam name="TEntity">
/// The type of the entity.
/// </typeparam>
/// <param name="sorter">
/// The sorter.
/// </param>
/// <param name="propertyName">
/// Name of the property or a list of chained properties, separated by a dot.
/// </param>
/// <returns>
/// A new <see cref="IEntitySorter{TEntity}" />.
/// </returns>
/// <exception cref="ArgumentNullException">
/// Thrown when the specified <paramref name="propertyName" />
/// is a null reference.
/// </exception>
/// <exception cref="ArgumentException">
/// Thrown when the specified <paramref name="propertyName" /> is
/// empty or when the specified property could not be found on the <typeparamref name="TEntity" />.
/// </exception>
/// <exception cref="ArgumentNullException">
/// Thrown when <paramref name="sorter" /> or
/// <paramref name="propertyName" /> are null.
/// </exception>
public static IEntitySorter <TEntity> ThenBy <TEntity>(this IEntitySorter <TEntity> sorter, string propertyName)
{
if (sorter == null)
{
throw new ArgumentNullException("sorter");
}
var builder = new EntitySorterBuilder <TEntity>(propertyName)
{
SortDirection = SortDirection.Ascending
};
return(builder.BuildThenByEntitySorter(sorter));
}