foreach var x in…具有一个结果ASP.NET MVC RAZOR

Question

I have this code:

foreach (var parent in @CurrentPage.AncestorsOrSelf().OrderBy("Level").Skip(2).Take(1))
{
...
}

The @CurrentPage.AncestorsOrSelf().OrderBy("Level").Skip(2).Take(1) returns always one result, which is right. In this there is no sense to use foreach loop when the result is only one.

How can i store the result from @CurrentPage.AncestorsOrSelf().OrderBy("Level").Skip(2).Take(1) inside a variable?

Answer 1

You can call .First() or .FirstOrDefault() to get the actual object:

var value = @CurrentPage.AncestorsOrSelf().OrderBy("Level").Skip(2).First();

The difference between them is that First() will throw an exception if there are no items, while FirstOrDefault() will return default(T) (that is, null for reference types and eg 0 for int s etc).

Since you're extracting the first item, you don't need Take(1) .