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Linq: GroupBy, Sum and Count

... I don't understand where the first "result with sample data" is coming from, but the problem in the console app is that you're using SelectMany to look at each item in each group. I think you just want: List<ResultLine> result = Lines .GroupBy(l => l.ProductCode) .Selec...
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Right way to initialize an OrderedDict using its constructor such that it retains order of initial d

...emoved before the OrderedDict constructor sees it. Note that using a list comprehension in your last example doesn't change anything. There's no difference between OrderedDict([(i,i) for i in l]) and OrderedDict([('b', 'b'), ('a', 'a'), ('c', 'c'), ('aa', 'aa')]). The list comprehension is evalua...
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Align items in a stack panel?

...an element relative to its parent element). Update As pointed out in the comments you can also use the FlowDirection property of a StackPanel. See @D_Bester's answer. share | improve this answer ...
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Why does cURL return error “(23) Failed writing body”?

... problem, altought it does not provide capable solution as there is no tac command on macOS – Dominik Bucher Sep 2 '18 at 14:47 ...
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How to create an object for a Django model with a many to many field?

... be the Django Docs about ManyToMany! much clearer then docs.djangoproject.com/en/1.10/topics/db/examples/many_to_many or docs.djangoproject.com/en/1.10/ref/models/fields, and also with the performance penalties for the different method included. Maybe you can update it for Django 1.9? (the set meth...
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Git merge errors

...# Switch to the topic branch: git checkout 9-sign-in-out # Create a merge commit, which looks as if it's merging in from master, but is # actually discarding everything from the master branch and keeping everything # from 9-sign-in-out: git merge -s ours master # Switch back to the master branch: ...
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How can I use grep to show just filenames on Linux?

... @Hauke And my answer was -l. I mentioned -H only because the user's command in the question included -H and it is redundant when -l is given. – Random832 Apr 26 '18 at 15:58 ...
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Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of

...] ... Had maven 3.0.5, eclipse Kepler with JBoss Dev Studio 7 installed. Computer sitting on internal network with proxy to the internet. Here's what I did. 0. Check the maven repositiory server is up 1. Check Proxy is set up and working First I thought it was a proxy problem, I made sure that ...
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Branch from a previous commit using Git

If I have n commits, how can I branch from the n-3 commit? 19 Answers 19 ...
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Increment a database field by 1

... of say logins, how would I go about updating that field by 1 within a sql command? 5 Answers ...