Linq: Query A Nested Collection

Here are my objects:

But the compiler throws an error on the foreach: Cannot convert type 'System.Collections.Generic.IEnumerable<string>' to 'string'.

Any insights?

Thanks,

Jason

Re: Linq: Query A Nested Collection

Basically, the two selects returns an IEnumerable<IEnumerable<string>> is the issue. You want to use the SelectMany extension method. Check this out: http://msdn.microsoft.com/en-us/library/bb534336.aspx

Worked great. Here is the working code:

apps.SelectMany(x => x.Groups.Select(y => y.Name)).Distinct();

Thanks for your help.