How to write a LINQ statement to get files with specific extensions from a dynamic list?

Question

I have a list of dynamic objects

List myDynamicList;

where one item would look similar to below:

dynamic d = ne         


        

Answer 1

You can use a list to save all the extension that you need and use Contains extension method in your query:

var list=new List(){".dll", ".exe"};
var libraries = myDynamicList.Where(d => list.Contains(Path.GetExtension(d.FileName)))
                             .Select(d => d.FileName);

You can also use Any extension method:

 var libraries = myDynamicList.Where(d => list.Any(e=>e==Path.GetExtension(d.FileName)))
                              .Select(d => d.FileName);