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Cross-thread operation not valid: Control accessed from a thread other than the thread it was create

...lease read the Threading Model in UI applications (old VB link is here) in order to understand basic concepts. The link navigates to page that describes the WPF threading model. However, Windows Forms utilizes the same idea. The UI Thread There is only one thread (UI thread), that is allowed to a...
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What's the difference between deque and list STL containers?

...idates only the iterators that point to the elements that are removed. The ordering of iterators may be changed (that is, list::iterator might have a different predecessor or successor after a list operation than it did before), but the iterators themselves will not be invalidated or made to point t...
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Calculate relative time in C#

...m, while this code may work it is incorrect and invalid to assume that the order of the keys in the Dictionary will be in a specific order. The Dictionary uses the Object.GetHashCode() which does not return a long but an int!. If you want these to be sorted then you should use a SortedList<long, ...
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What do ellipsis […] mean in a list?

...crete example. Graph reduction is an evaluation strategy sometime used in order to interpret a computer language. This is a common strategy for lazy evaluation, notably of functional languages. The starting point is to build a graph representing the sequence of "steps" the program will take. Depen...
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How to create a remote Git repository from a local one?

... In order to initially set up any Git server, you have to export an existing repository into a new bare repository — a repository that doesn’t contain a working directory. This is generally straightforward to do. In order to ...
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Tetris-ing an array

...refix that takes two strings as input. Then apply it to the strings in any order to reduce them to their common prefix. Since it is associative and commutative the order doesn't matter for the result. This is the same as for other binary operations like for example addition or greatest common divis...
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Java regex capturing groups indexes

...group in the pattern start indexing from 1. The indices are defined by the order of the opening parentheses of the capturing groups. As an example, here are all 5 capturing groups in the below pattern: (group)(?:non-capturing-group)(g(?:ro|u)p( (nested)inside)(another)group)(?=assertion) | | ...
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Using Mockito's generic “any()” method

... This class is now deprecated in order to avoid a name clash with Hamcrest. Use org.mockito.ArgumentMatchers – leo9r Mar 22 '19 at 23:26 ...
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what is the unsigned datatype?

... is more than one multiset per item); the type specifiers may occur in any order, possibly intermixed with the other declaration specifiers — void — char — signed char — unsigned char — short, signed short, short int, or signed short int — unsigned short, or unsigned short...
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What exactly is metaprogramming?

... amusement. We were a tiny startup, programming as hard as we could in order to put technical barriers between us and our competitors. A suspicious person might begin to wonder if there was some correlation here. A big chunk of our code was doing things that are very hard to do in...