List<T> already has the foreach method.
So you can do this:
nameList.Where(p => p.FirstName == "Pater")
.ToList()
.ForEach(p => p.FirstName = "Peter");
On Fri, Feb 25, 2011 at 10:22 AM, James Chapman-Smith <
[email protected]> wrote:
> Hi Arjang,
>
> Have you installed the `Reactive Extensions for .Net (Rx)`
> (http://social.msdn.microsoft.com/Forums/en-US/rx/threads)?
>
> It gives you, not only the support for `IObservable<T>/IObserver<T>` for
> push collections and a back-port of the TPL for .NET 3.5SP1, but it also
> gives you a ton of extensions for `IEnumerable<T>`.
>
> You get two extension methods that answer your question.
>
> `.Run(Action<T>)` lets you write this code:
>
> var names =
> from p in nameList
> where p.FirstName == "Pater"
> select p;
>
> names.Run(p => p.FirstName = "Peter");
>
> `.Do(Action<T>)` works like `.Run(Action<T>)` but it returns the list so
> can
> be used inside a LINQ query like this:
>
> var names =
> (from p in nameList
> where p.FirstName == "Pater"
> select p).Do(p => p.FirstName = "Peter");
>
> or:
>
> var names = nameList
> .Where(p => p.FirstName == "Pater")
> .Do(p => p.FirstName = "Peter");
>
> Cheers.
>
> James.
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Arjang Assadi
> Sent: Friday, 25 February 2011 12:07
> To: ozDotNet
> Subject: Linq (To Objects) Update ( like sql )
>
> When using Linq to Objects, is it possible to change a property value
> on all the selected values?
> I am NOT using Linq to sql, I have list items and want to change value
> of some properties depending on names e.g.
>
> //typo in name entry, can not change the persisted data, instead
> correcting in code, there are no ID's to create a correction table for
> specific records, just having to hard code it heuristics.
>
> var names = from p in nameList
> where p.FirstName == "Pater"
> set p.FirstName = "Peter"
> select p;
>
> Regards
>
> Arjang
>
>
