Problem in linq query

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hello i have following entities

C#

public class FileInformation : Entity
       {

           public string FileName { get; set; }
           public string FilePath { get; set; }
           public string Clientid { get; set; }
           public List<ChangeInformation> ChangeInformations { get; set; }
           public FileInformation()
           {
               this.ChangeInformations = new List<ChangeInformation>();
           }
       }
       public class ChangeInformation
       {

           public string FileName { get; set; }
           public string OldFileName { get; set; }
           public long FileSize { get; set; }
           public DateTime ModifiedDate { get; set; }
           public string HashValue { get; set; }
           public string DeviceID { get; set; }
           public DateTime CreationDate { get; set; }
           public string Status { get; set; }
           public ChangeInformation()
           {

           }
       }

i want to get all the fileinformation which have not been deleted

What I have tried:

C#

var files = finfo.Where(n => n.ChangeInformations.Any(x=>x.Status !="Deleted");

Posted 24-Feb-16 22:47pm

srilekhamenon

Updated 24-Feb-16 23:33pm

dan!sh

v2

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[no name] 25-Feb-16 4:59am

It looks ok. What is the value you are getting files variable or any error?

dan!sh 25-Feb-16 5:07am

Update your question with the error details if any or details of what is not working.

srilekhamenon 25-Feb-16 5:10am

changeinformation can have multiple information like change,Rename or delete.
it is returning the first row

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*dan!sh* · Accepted Answer · 2016-02-24T23:33:00

Your code will return the FileInformation object if it has any ChangeInformation object with status not as Deleted.

Now, if an object has statuses as changed and delete, it will be returned. I will recommend changing it to this:

Here, we are checking if any status is deleted. If yes, do not take it.

C#

var files = finfo.Where(n => !n.ChangeInformations.Any(x=>x.Status == "Deleted");

If deleted is always going to be on top and ChangeInformation is sorted in descending order of date, you can just check the first item if the status is deleted. If not select it. Something like this:

C#

finfo.Where(x =>
            (x.ChangeInformations != null && x.ChangeInformations.Count > 0 && x.ChangeInformations[0].Status != "Deleted")
            );