A LINQ Challenge

Question

I have a struct like this:

 public struct MyStruct
 {
     public string Name;
     public bool Process;
 }

And I have a list of myStruct like this:

"123", true

"123", false

"234", true

"345", false

"456", true

"456", false

I want to able to use LINQ to return a list like this:

"123", false

"234", true

"345", false

"456", false

So basically the result I want is a list of distinct names ("123", "234", ...etc) along with the boolean flag and if the names are repeated I need to do an "AND" operation on the flag.

Is there an easy way to do this with one single LINQ statement?

Answer 1

var result = input.GroupBy(e => e.Name)
                  .Select(gr => new { Name = gr.Key,
                                      All = gr.All(e => e.Process) });