LINQ Select into Dictionary

Question

I'm trying to take a Select and project each elements into a Dictionary<string, UdpReceiveResult> I currently have a Select that just projects the value of a Dictionary to a list tasks of type UdpReceiveResult. clients is a dictionary of type Dictionary<string, UdpClient>. I have

var tasks = clients.Select(c => c.Value.ReceiveAsync()).OrderByCompletion(); 

I want to project the key and ReceiveAsync() result into a new Dictionary. The OrderByCompletion is from Nito.AsyncEx dll.

Answer 1

Well, for starters, you'll need your result to also include the key:

var tasks = clients.Select(async c => new {     c.Key,     Value = await c.Value.ReceiveAsync(), }); 

Then when the tasks finish you can put them in a dictionary:

var results = await Task.WhenAll(tasks); var dictionary = results.ToDictionary(     pair => pair.Key, pair => pair.Value);