Get number of columns and column names from LinQ result set

I am creating a Grid view user control and I would like to know how to get the number of columns and the column names from the LinQ result set. This will be used to create a dynamic grid view.

What I have here is one class with this:

var myPerson = from persons in myLinQ.SamplePersons
               select persons;

And in my grid view开发者_高级运维, it has this property which receives the result set.

public IEnumerable<Object> SourceLinQ { get; set; }

Is there any way to do this?

How about something like this:

var resultType =
    query.GetType() 
         .GetInterfaces()
         .Where(x => x.IsGenericType &&
                     x.GetGenericTypeDefinition() == 
                         typeof(IEnumerable<>)
         )
         .Single()
         .GetGenericArguments()
         .Single();

Then:

var columns = resultType.GetProperties();
int numberOfColumns = columns.Length;
string[] columnNames = columns.Select(column => column.Name)
                              .ToArray();

This is untested, and I don't even know if it compiles (I don't have a compiler handy right now, sorry).