c# - Linq order by boolean

Question

I've got a linq query that I want to order by f.bar, which is a string, but I also want to order it by f.foo, which is a boolean field, first. Like the query below.

(from f in foo
orderby f.foo, f.bar
select f)

Although this compiles it doesn't work as expected. It just orders by f.bar ignoring the boolean field.

I'm being daft I know, but what do I need to do to get this behaviour?

Thanks

Answer 1

That should work fine - it should order the entities with a false foo value first, then those with a true foo value.

That certainly works in LINQ to Objects - which LINQ provider are you actually using?

Here's a LINQ to Objects example which does work:

using System;
using System.Linq;

public static class Test
{
    public static void Main()
    {
        var data = new[]
        {
            new { x = false, y = "hello" },
            new { x = true, y = "abc" },
            new { x = false, y = "def" },
            new { x = true, y = "world" }
        };

        var query = from d in data
                    orderby d.x, d.y
                    select d;

        foreach (var result in query)
        {
            Console.WriteLine(result);
        }
    }

}