Hi All,
I've added the code below to SelectionTests.cs in
NHibernate.Linq.Tests. I would expect this to work but instead get the
exception below. I would expect this to work. Is there an issue with
the Linq provider or am I misusing it. I'm sure I have done a similar
thing in the past with Linq to SQL.
TIA,
Brett
private static UserDto Convert(User user)
{
return new UserDto(user.Id, user.Name);
}
[Test]
public void CanSelectUsingMethod()
{
var query = session.Linq<User>().Select(u => Convert(u));
var list = query.ToList();
Assert.AreEqual(3, list.Count);
}
System.InvalidCastException: Unable to cast object of type
'NHibernate.Linq.Expressions.EntityExpression' to type
'NHibernate.Linq.Expressions.CollectionAccessExpression'.
at NHibernate.Linq.Visitors.SelectArgumentsVisitor.VisitMethodCall
(MethodCallExpression expr) in SelectArgumentsVisitor.cs: line 97
at NHibernate.Linq.Visitors.ExpressionVisitor.Visit(Expression exp) in
ExpressionVisitor.cs: line 70
at NHibernate.Linq.Visitors.NHibernateExpressionVisitor.Visit
(Expression exp) in NHibernateExpressionVisitor.cs: line 29
at NHibernate.Linq.Visitors.RootVisitor.HandleSelectCall
(MethodCallExpression call) in RootVisitor.cs: line 114
at NHibernate.Linq.Visitors.RootVisitor.VisitMethodCall
(MethodCallExpression expr) in RootVisitor.cs: line 50
at NHibernate.Linq.Visitors.ExpressionVisitor.Visit(Expression exp) in
ExpressionVisitor.cs: line 70
at NHibernate.Linq.Visitors.NHibernateExpressionVisitor.Visit
(Expression exp) in NHibernateExpressionVisitor.cs: line 29
at NHibernate.Linq.Visitors.NHibernateQueryTranslator.Translate
(Expression expression, QueryOptions queryOptions) in
NHibernateQueryTranslator.cs: line 40
at NHibernate.Linq.NHibernateQueryProvider.TranslateExpression
(Expression expression) in NHibernateQueryProvider.cs: line 49
at NHibernate.Linq.NHibernateQueryProvider.Execute(Expression
expression) in NHibernateQueryProvider.cs: line 54
at NHibernate.Linq.Query`1.GetEnumerator() in Query.cs: line 69
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList<TSource>(IEnumerable`1 source)
at NHibernate.Linq.Tests.SelectionTests.CanSelectUsingMethod() in
SelectionTests.cs: line 70
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