Dynamic query to immediate execute?
I am using the MSDN Dynamic linq to sql package. It allows using strings for queries.
But, the returned type is an IQueryable
and not an IQueryable<T>
. I do not have the ToList()
method.
How can I this immediate execute without manually enumerating over the IQueryable
?
My goal is to databind to the Select开发者_运维技巧ing event on a linqtosql datasource and that throws a datacontext disposed exception. I can set the query as the Datasource on a gridview though.
Any help greatly appreciated! Thanks.
The dynamic linq to sql is the one from the samples that comes with visual studio.
The difference between IQueryable
and IQueryable<T>
is that the second is typed while the first is not. To convert IQueryable
into IQueryable<T
> you can use the Cast<T>()
method.
IQueryable myQueryable = ...;
IQueryable<MyType> myTypedQueryable = myQueryable.Cast<myQueryable>();
IList<MyType> myList = myTypedQueryable.ToList();
Obviously the contents of myQyeryable
must be castable into MyType
. To select the instances of a certain type you can use the TypeOf<T>()
method before doing the cast.
精彩评论