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What is Prefix.pch file in Xcode?
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Precompiled header.
What is it?
A Prefix.pch is a precompiled header. Precompiled headers were invented to make compiling faster. Rather than parsing the same header files over and over, these files get parsed once, ahead of tim...
Difference between margin and padding?
...s for a definition. But the graphic is a perfect illustration. w3schools.com/css/css_margin.asp w3schools.com/css/css_padding.asp
– Suroot
May 11 '11 at 2:53
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Custom ListView click issue on items in Android
... and the "onListItemClick" handler will fire, etc).
EDIT: As an update, a commenter mentioned "Just a note, after changing the visibility of the button I had to programmatically disable the focus again."
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Linq: GroupBy, Sum and Count
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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...
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...
How to compare variables to undefined, if I don’t know whether they exist? [duplicate]
...ined , you can check variable == undefined ; I know that, but how can you compare a value that you don’t know yet if it’s in memory?
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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
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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 ...
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
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