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How to determine why visual studio might be skipping projects when building a solution
...ixed Platforms" then back to "Any CPU" that it would build. Looking at a diff of the solution file before and after, it changed from {784BDC39-5783-4128-956E-99EA062FA8FB}.Debug|AnyCPU.ActiveCfg = Debug|AnyCPU to {784BDC39-5783-4128-956E-99EA062FA8FB}.Debug|AnyCPU.ActiveCfg = Debug|Any CPU. The on...
How to obtain the query string from the current URL with JavaScript?
...e
Notice that the browser support is still limited on this interface, so if you need to support legacy browsers, stick with the first example or use a polyfill.
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Assign null to a SqlParameter
..., it is DBNull.Value which is actually a value type. The ?? operator says 'if AgetItem.AgeIndex is null then return DBNull.Value otherwise returen AgeItem.AgeIndex' then the response is cast to object. See null coalescing operator for more details. msdn.microsoft.com/en-us/library/ms173224.aspx
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PostgreSQL - fetch the row which has the Max value for a column
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On a table with 158k pseudo-random rows (usr_id uniformly distributed between 0 and 10k, trans_id uniformly distributed between 0 and 30),
By query cost, below, I am referring to Postgres' cost based optimizer's cost estimate (with Postgres' default xxx_cost values), which ...
Which Radio button in the group is checked?
...seems to me that the code below should not be necessary. When you check a different RadioButton then it knows which one to uncheck… so it should know which is checked. How do I pull that information without doing a lot of if statements (or a switch).
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SQL error “ORA-01722: invalid number”
...ice that manually complete a field with "(null)" will give you that error. If the defaul is null and you don't complete it will auto-complete with (null) but it is not the same when you type it.
– bogdan.rusu
Aug 5 '15 at 8:37
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How to “git show” a merge commit with combined diff output even when every changed file agrees with
...a one-line change that was forked three months ago will still have a huge diff versus the mainline, and so such a full diff would be almost completely unhelpful. That's why git doesn't show it.
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How to get just the parent directory name of a specific file
...stIndexOf():
file.getParentFile().getName();
These solutions only works if the file has a parent file (e.g., created via one of the file constructors taking a parent File). When getParentFile() is null you'll need to resort to using lastIndexOf, or use something like Apache Commons' FileNameUtils...
Func vs. Action vs. Predicate [duplicate]
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The difference between Func and Action is simply whether you want the delegate to return a value (use Func) or not (use Action).
Func is probably most commonly used in LINQ - for example in projections:
list.Select(x => x.So...
Does delete on a pointer to a subclass call the base class destructor?
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The destructor of A will run when its lifetime is over. If you want its memory to be freed and the destructor run, you have to delete it if it was allocated on the heap. If it was allocated on the stack this happens automatically (i.e. when it goes out of scope; s...