public string GetSortUrl()
{
IList <SortDescriptor> orderBy = new List <SortDescriptor>(Grid.DataSource.OrderBy);
SortDescriptor descriptor = orderBy.SingleOrDefault(c => c.Member.IsCaseInsensitiveEqual(Member));
ListSortDirection?oldDirection = null;
if (descriptor != null)
{
oldDirection = descriptor.SortDirection;
ListSortDirection?newDirection = oldDirection.Next();
if (newDirection == null)
{
if (!Grid.Sortable.AllowUnsort)
{
newDirection = ListSortDirection.Ascending;
}
else
{
orderBy.Remove(descriptor);
}
}
if (newDirection != null)
{
if (Grid.Sortable.SortMode == GridSortMode.SingleColumn)
{
orderBy.Clear();
orderBy.Add(new SortDescriptor {
SortDirection = newDirection.Value, Member = descriptor.Member
});
}
else
{
orderBy[orderBy.IndexOf(descriptor)] = new SortDescriptor {
SortDirection = newDirection.Value, Member = descriptor.Member
};
}
}
}
else
{
if (Grid.Sortable.SortMode == GridSortMode.SingleColumn)
{
orderBy.Clear();
}
orderBy.Add(new SortDescriptor {
Member = Member, SortDirection = ListSortDirection.Ascending
});
}
return(Grid.UrlBuilder.SelectUrl(GridUrlParameters.Sort, GridDescriptorSerializer.Serialize(orderBy)));
}
public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
{
DataSourceRequest request = new DataSourceRequest();
string sort, group, filter, aggregates;
int currentPage;
int pageSize;
if (TryGetValue(bindingContext, GridUrlParameters.Sort, out sort))
{
request.Sorts = GridDescriptorSerializer.Deserialize <SortDescriptor>(sort);
}
if (TryGetValue(bindingContext, GridUrlParameters.Page, out currentPage))
{
request.Page = currentPage;
}
if (TryGetValue(bindingContext, GridUrlParameters.PageSize, out pageSize))
{
request.PageSize = pageSize;
}
if (TryGetValue(bindingContext, GridUrlParameters.Filter, out filter))
{
request.Filters = FilterDescriptorFactory.Create(filter);
}
if (TryGetValue(bindingContext, GridUrlParameters.Group, out group))
{
request.Groups = GridDescriptorSerializer.Deserialize <GroupDescriptor>(group);
}
if (TryGetValue(bindingContext, GridUrlParameters.Aggregates, out aggregates))
{
request.Aggregates = GridDescriptorSerializer.Deserialize <AggregateDescriptor>(aggregates);
}
bindingContext.Model = request;
return(true);
}