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How to Pass LINQ object form Biz Class
Message
De
06/07/2010 11:47:18
 
 
À
06/07/2010 11:22:33
James Blackburn
Qualty Design Systems, Inc.
Kuna, Idaho, États-Unis
Information générale
Forum:
ASP.NET
Catégorie:
LINQ
Divers
Thread ID:
01471528
Message ID:
01471534
Vues:
55
>Hi All
>I have the class below that I want to use to data from my EF setup. I can't figure out what type to make the method so I can return the resulting LINQ object. The code below gives me this error.
>
>Cannot implicitly convert type 'System.Collections.Generic.IEnumerable AnonymousType#1 to 'System.Linq.Enumerable'
>
>Thanks.
>
>
>    public class MyBizClass   
>    {
>        private CornMazeYellowPagesEntities oEFobject = null;
>        public MyBizClass()
>        {
>            this.oEFobject = new CornMazeYellowPagesEntities();
>        }
>
>        public Enumerable getDirectory()
>        {
>            //CornMazeYellowPagesEntities queryobj = null;
>            var queryobj = from dr in this.oEFobject.DIRECTORies.AsEnumerable()
>                        select new
>                        {
>                            dr.ADDRESS1,
>                            dr.ADDRESS2,
>                            dr.CITY,
>                            dr.COMPANYNAME
>                        };
>
>            //queryobj = 
>             //    from dr in this.oEFobject.DIRECTORies 
>             //           select dr;
>
>            return queryobj;
>        }
>    }
>
The problem isn't with IEnumerable as such but because you are creating an anonymous type which, by definition, cannot be used outside of where it is created - i.e there's no way the object created by 'select new {}' can be used outside of the getDirectory() method. You could create a light-weight class to do the job - but define it somewhere where it can be accessible whereever it will be used.
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