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Windows store app - Timed operations

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I have a list of of stringsDouble called Messages.

The code for the class is below:

public class stringsDouble {
public string Sender{get;set;}
public string message{get;Set;} public DateTime time{get;Set;} }

every time my app receives a new message. I update the List and i store the time of the latest message sent for the user sending that message.

what i want to do is, every 5 minutes the app should go through the list.

and for every item in the list it should get the time property and get the current system time , and check to see if the difference is more than 30 minutes. If it is, it should delete that item from the list.

How can i accomplish this?
Monday, December 30, 2013 6:35 AM

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something like this?

DispatcherTimer _timer;
        ObservableCollection<stringsDouble> _list = new ObservableCollection<stringsDouble>();
        public GroupedItemsPage()
        {
            _timer = new DispatcherTimer();
            _timer.Interval = TimeSpan.FromMinutes(5);
            _timer.Tick += _timer_Tick;
            _timer.Start();
        }

        void _timer_Tick(object sender, object e)
        {
            var thressHold = DateTime.Now.Subtract(TimeSpan.FromMinutes(30));
            var itemsToRemove = _list.Where(x => x.time < thressHold).ToArray();
            foreach(var item in itemsToRemove)
                _list.Remove(item);
        }

you can databind the list to that observablecollection.

Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Marked as answer by kalel111 Tuesday, December 31, 2013 1:44 AM

Monday, December 30, 2013 9:42 AM

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Windows store app - Timed operations

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