Hello Juan,

According to your description, you want to store one or more Linq Queries
in a Collection, and retrieve the query from Collecction in different
method, correct? If I misunderstood anything here, please don't hesitate to
correct me.

As you seen, one of the biggest limitation in "Var" type is that it cannot
be shared across methods. This has becomed a common issue in Linq project.
Wriju has a blog described the workaround for sharing "var" across method.
You may refer to the following article if you are interested in his
workaround.
http://blogs.msdn.com/wriju/archive/2007/12/19/sharing-var-across-the-method
.aspx
[Sharing "var" across the method ]

In your scenario, my suggestion is to insert each query into List<Object>,
and CastVar each object when querying. For example:

namespace ConsoleApplication16
{
   static class MyClass
   {
        public static IQueryable<T> CastVar<T>(this object obj, T anyType)
       {
           return (IQueryable<T>) obj;
       }
   }

   public class Class1
   {
       List<object> l = new List<object>();
       public Class1()
       {
           DataClasses1DataContext ddc = new DataClasses1DataContext();
           var q1 = from a in ddc.Table_1s
                   select new { c2=a.c2,c5=a.c5 };
           var q2 = from a in ddc.Table_1s
                    select new { c6 = a.c6 };
           l.Add(q1);
           l.Add(q2);
       }

       public string q1()
       {
           var q1 = l[0].CastVar(new {c2 = "", c5 = new bool?()});
           return q1.First().c2;
       }

       public decimal q2()
       {
           var q2 = l[1].CastVar(new { c6 = new decimal?() });
           return q2.First().c6.Value;
       }
   }
}

Hope this helps. Please try the above method and let me know if this is
what you need. We are glad to assist you.

Have a great day,
Best regards,
Wen Yuan
Microsoft Online Community Support
Delighting our customers is our #1 priority. We welcome your comments and
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