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Finding a Maximum value
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Delta_Rich View Drop Down
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Joined: 19-Oct-2011
Location: NZ
Posts: 10 		Post Options Post Options   Quote Delta_Rich Quote  Post ReplyReply Direct Link To This Post Topic: Finding a Maximum value
    Posted: 19-Oct-2011 at 2:53pm

Once my ObservableCollection finishes loading, I wish to find out what the
Maximum value of one of the elements is.

I have used the Max() function but it does not seem to reporting the correct item

e.g. My collection is CriticalEvents and the element I am trying to get is
UpdateTracker (which is a decimal) the code thus goes like this:
LastUpdated = CriticalEvents.Max().UpdateTracker;

It does indeed return a value but it is not the maximum value of UpdateTracker
in this is collection (more like middle of the collection).

Can you please advise me of what assumption I have made that is incorrect and how to solve this issue?
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sbelini View Drop Down
IdeaBlade
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Joined: 13-Aug-2010
Location: Oakland
Posts: 786 		Post Options Post Options   Quote sbelini Quote  Post ReplyReply Direct Link To This Post Posted: 19-Oct-2011 at 4:36pm
Hi Delta_Rich,
 
If you are simply looking for the highest UpdateTracker value, try:
 
var LastUpdated = CriticalEvents.Max(CriticalEvent => CriticalEvent.UpdateTracker);
 
Or if you want to retrieve the CriticalEvent entity with the highest UpdateTracker value, then try:
 
var LastUpdated = CriticalEvents.Where(CriticalEvent => CriticalEvent.UpdateTracker == CriticalEvents.Max(cEvent => cEvent.UpdateTracker)).First();
 
Regards,
   Silvio.


Edited by sbelini - 20-Oct-2011 at 10:34am
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Delta_Rich View Drop Down
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Joined: 19-Oct-2011
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Posts: 10 		Post Options Post Options   Quote Delta_Rich Quote  Post ReplyReply Direct Link To This Post Posted: 19-Oct-2011 at 8:48pm
Thanks - thus far it looks like this has solved the issue, just doing some more testing but looking good thus far (aside from the typos mixing up LastUpdated and UpdateTracker).
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sbelini View Drop Down
IdeaBlade
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Joined: 13-Aug-2010
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Posts: 786 		Post Options Post Options   Quote sbelini Quote  Post ReplyReply Direct Link To This Post Posted: 20-Oct-2011 at 10:35am
I'm glad I could help and nice catch... 
I updated it for clarity.

Silvio.
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