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The calling thread cannot access this object because a different thread owns it

...most of us do, tried the highest voted answer, which didn't solve my issue then. I then found out this reason and posted it here for peer developers. – dotNET Sep 27 '16 at 10:15 1...
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Count, size, length…too many choices in Ruby?

... requests all of the items from the database ('select * from mytable') and then give you the number of items resulting, whereas .count will generate a single query ('select count(*) from mytable') which is considerably faster. Because these ORMs are so prevalent I following the principle of least a...
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What's the difference between an element and a node in XML?

..., etc. It's better to understand what a 'node' means in graph theory, and then you'll understand why the XML designers chose that name (the DOM is just a hierarchical graph). – Les Hazlewood Apr 26 '14 at 21:00 ...
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Undefined reference to vtable

... Note that once I added the virtual destructor to the implementation file, then gcc told me the actual error, which was a missing body on another function. – moodboom Jul 16 '15 at 23:47 ...
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How to print (using cout) a number in binary form?

...e easiest way is probably to create an std::bitset representing the value, then stream that to cout. #include <bitset> ... char a = -58; std::bitset<8> x(a); std::cout << x << '\n'; short c = -315; std::bitset<16> y(c); std::cout << y << '\n'; ...
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Get size of folder or file

...it is not a directory at the beginning of the method and return the length then the recursion is simpler - just add the call to self in the same method and then this supports passing in a file reference instead of a directory as well. – Kevin Brock Jan 28 '10 a...
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~x + ~y == ~(x + y) is always false?

... One could just restate the problem to be for unsigned integers and then twos complement does not come into play at all. – R.. GitHub STOP HELPING ICE Jun 20 '12 at 3:20 5 ...
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Panel.Dock Fill ignoring other Panel.Dock setting

...portant thing is to add the control with DockStyle.Fill first in Controls then the others. Example: ComboBox cb = new ComboBox(); cb.Dock = DockStyle.Top; GridView gv = new GridView(); gv.Dock = DockStyle.Fill; Controls.Add(gv); // this is okay Controls.Add(cb); but if we put cb first Cont...
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What does “where T : class, new()” mean?

... to clarify, if you don't have the class clause as part of the where T..., then it is safe to use int, float, double etc. – AboutDev Feb 8 '13 at 21:07 1 ...
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Remove unnecessary svn:mergeinfo properties

...emyWeir What do you mean by "just don't do it on the root dir"? Where from then? You have a lot of upvotes on that comment, but I'm not seeing the alternative. – TT. Apr 26 '16 at 6:46 ...