Question

I have this class in my infrastructure that suppose to return random image. It always returns same image. I have exactly same code used in different place on my website and it works. Any ideas?

This question is where I got the info for getting random value. I don’t understand why it works on one place and not another though…

Background.cs

public static class Background
{
    public static string Get()
    {
        photoBlogModelDataContext _db = new photoBlogModelDataContext();
        var image = _db.Images.OrderBy(x => Guid.NewGuid()).FirstOrDefault();
        return image.Small; // Always same value?
    }
}

Same code on another page that works where I loop through my gallery and choose random image from it

<img src="@Url.Content("~/content/uploads/" + item.Images.OrderBy(x => Guid.NewGuid()).FirstOrDefault().Small)" alt="" />

Answer 1

Well, I would say that one time you have linq2entities, and one time linq2object

Not sure that the OrderBy(Guid.NewGuid()) works the same.

If you try to enumerate

public static class Background
{
    public static string Get()
    {
        photoBlogModelDataContext _db = new photoBlogModelDataContext();
        var image = _db.Images.ToList().OrderBy(x => Guid.NewGuid()).FirstOrDefault();
        return image.Small; // Always same value?
    }
}

it should change.