Nhibernate QueryOver how can I make this query use async? - asp.net

Question

For this new website I want to use async methods in NHibernate. I have this simple query using QueryOver API but I can't get this one to work with async.
It is a simple query with some where clauses that list all businesses. I want 20 of them each time I execute this.
Query:
BusinessListItem bli = null;
BusinessCategory bc = null;
Category c = null;
BusinessImage bi = null;
Image i = null;
var q = Session.QueryOver<Business>()
.JoinAlias(x => x.Categories, () => bc)
.JoinAlias(() => bc.Category, () => c)
.JoinAlias(x => x.Images, () => bi, JoinType.LeftOuterJoin)
.JoinAlias(() => bi.Image, () => i, JoinType.LeftOuterJoin)
.Where(() => bc.IsMain);
if (!string.IsNullOrEmpty(_name))
q.WhereRestrictionOn(x => x.Name).IsLike($"%{_name}%");
if (!string.IsNullOrEmpty(_streetName))
q.WhereRestrictionOn(x => x.StreetName).IsLike($"%{_streetName}%");
if (_categoryId != null)
q.Where(() => c.Id == _categoryId.Value);
if (_subCategoryIds != null)
q.WhereRestrictionOn(() => c.Id).IsIn(_subCategoryIds);
return q.Select(
Projections.Property<Business>(x => x.Id).WithAlias(() => bli.Id),
Projections.Property<Business>(x => x.Name).WithAlias(() => bli.Name),
Projections.Property("c.Name").WithAlias(() => bli.CategoryName),
Projections.Property("bi.Image").WithAlias(() => bli.Image)
)
.TransformUsing(Transformers.AliasToBean<BusinessListItem>())
.List<BusinessListItem>()
.OrderBy(x => x.Name)
.Skip(_skipCount)
.Take(20)
.ToList();
I know the method .ListAsync() exists but I cannot get it working together with the Skip, Take and OrderBy method.
Any help is much appreciated!

Answer 1

The solution to this question is :
var result = await q.Select(
Projections.Distinct(
Projections.Property<Business>(x => x.Id).WithAlias(() => bli.Id)
)
.TransformUsing(Transformers.AliasToBean<BusinessListItem>())
.OrderBy(x => x.Name).Asc
.Skip(_skipCount)
.Take(_takeCount)
.ListAsync<BusinessListItem>();
return result.ToList();
Thx to #DavidOsborne