Comments (1)
I believe I've found the problem area but unfortunately I don't know how to fix it (not familiar with linq. yet!)
In MongoCollectionGeneric.cs - line 385
public IEnumerable Find<U, O, Z>(U template, O orderBy, int limit, int skip, String fullName, Expression<Func<T, Z>> fieldSelection)
For anonymous lambdas, the fieldSelection cast goes well but for concrete-typed lambdas, none of casts go through cause the expression in now a MemberInitExpression, so fieldSelectionExpando never gets populated.
#region Extract field names to request
var exp = fieldSelection.Body as NewExpression;
var fieldSelectionExpando = new Expando();
if (exp != null)
{
foreach (var x in exp.Arguments.OfType<MemberExpression>())
{
fieldSelectionExpando[x.GetPropertyAlias()] = 1;
}
}
else if (fieldSelection.Body is MemberExpression)
{
var me = fieldSelection.Body as MemberExpression;
fieldSelectionExpando[me.GetPropertyAlias()] = 1;
}
#endregion
Hope this helps.
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