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How to get first record in each group using Linq

...lement in list) .GroupBy(x => x.F1) .Select(y => new { F1 = y.FirstOrDefault().F1; F2 = y.First().F2; F3 = y.Last().F3; }); So you will get something like F1 F2 F3 ------------------...
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Select row with most recent date per user

... ah, thanks for the insight! i'll try the new code when i'm in the office tomorrow. – Keith Jun 11 '13 at 11:46 3 ...
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How to enter a multi-line command

...d cannot syntactically be complete at that point. This includes starting a new pipeline element: Get-ChildItem | Select Name,Length will work without problems since after the | the command cannot be complete since it's missing another pipeline element. Also opening curly braces or any other kin...
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subtract two times in python

...ow is why python can't add or subtract a timedelta from a time to return a new time value. – aj.toulan Jan 4 '18 at 5:10 add a comment  |  ...
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Inner join vs Where

...L Server and will disappear eventually. Before I used that old syntax in a new query I would check what Oracle plans to do with it. I prefer the newer syntax rather than the mixing of the join criteria with other needed where conditions. In the newer syntax it is much clearer what creates the join ...
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java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist

...ly a solution. – David Jan 27 at 13:51 add a comment  |  ...
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How to call an async method from a getter or setter?

...ay besides using Nito AsyncEx or using Dispatcher.CurrentDispatcher.Invoke(new Action(..)? – Gerard Nov 19 '13 at 11:14 ...
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Is it possible to change the textcolor on an Android SearchView?

...lass<V> clazz) { return gatherChildrenByClass(viewGroup, clazz, new ArrayList<V>()); } private static <V extends View> Collection<V> gatherChildrenByClass(ViewGroup viewGroup, Class<V> clazz, Collection<V> childrenFound) { for (int i = 0; i < viewGro...
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I ran into a merge conflict. How can I abort the merge?

...of git that should be separated from the merge resolution process. But the new version is great! – Peter Mar 27 '10 at 20:51 add a comment  |  ...
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How do I restore a missing IIS Express SSL Certificate?

... A much quicker way is to launch Jexus Manager and generate a new certificate and then bind to your site. jexusmanager.com Of course it does not yet fix broken certificate bindings and I will see how to make that a one-click feature. – Lex Li Jun 3...