public QueryStringSortSettings(IQueryDictionary <StringValues> query)
{
if (query == null)
{
throw new ArgumentException("No http context here!");
}
Query = query;
ColumnQueryParameterName = DefaultColumnQueryParameter;
DirectionQueryParameterName = DefaultDirectionQueryParameter;
var sortings = query.Get(ColumnOrderValue.DefaultSortingQueryParameter);
if (sortings.Count > 0)
{
foreach (string sorting in sortings)
{
ColumnOrderValue column = QueryDictionary <StringValues> .CreateColumnData(sorting);
if (column != ColumnOrderValue.Null)
{
_sortValues.Add(column);
}
}
}
}