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What is a method group in C#?

... Also, if you are using LINQ, you can apparently do something like myList.Select(methodGroup). So, for example, I have: private string DoSomethingToMyString(string input) { // blah } Instead of explicitly stating the variable to be used like this: public List<string> GetStringStuff()...
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Why would one omit the close tag?

...r mind. Bonus: a few gotchas (actually currently one) related to these 2 characters: Even some well-known libraries may contain excess line endings after ?>. An example is Smarty, even the most recent versions of both 2.* and 3.* branch have this. So, as always, watch for third party code. Bo...
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throwing exceptions out of a destructor

... ~Bad2() { throw 1; } }; int main(int argc, char* argv[]) { try { Bad bad; } catch(...) { std::cout << "Print This\n"; } try { if (argc > 3) { Bad bad; // This destructor will thr...
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How to find Unused Amazon EC2 Security groups

... If you select all of your security groups in the EC2 console, then press actions -> Delete Security Groups, a popup will appear telling you that you cannot delete security groups that are attached to instances, other security gro...
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The object cannot be deleted because it was not found in the ObjectStateManager

... var project = context.Projects .Include(p => p.Reports.Select(q => q.Issues.Select(r => r.Profession))) .Include(p => p.Reports.Select(q => q.Issues.Select(r => r.Room))) .SingleOrDefault(x => x.Id == id); return proje...
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What is the difference between related SQLite data-types like INT, INTEGER, SMALLINT and TINYINT?

...MALLINT, TINYINT → INTEGER affinity, because they all contain "INT". LONGCHAR, LONGVARCHAR → TEXT affinity, because they contain "CHAR". DEC, DECIMAL, DATETIME, SMALLDATETIME → NUMERIC, because they don't contain any of the substrings that matter. The rules for determining affinity are liste...
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How do I select a merge strategy for a git rebase?

... }, onDemand: true, discardSelector: ".discard-answer" ,immediatelyShowMarkdownHelp:true,enableSnippets:true }); } }); ...
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How do I connect to a MySQL Database in Python?

...ueries you need cur = db.cursor() # Use all the SQL you like cur.execute("SELECT * FROM YOUR_TABLE_NAME") # print all the first cell of all the rows for row in cur.fetchall(): print row[0] db.close() Of course, there are thousand of possibilities and options; this is a very basic example. Y...
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Is there a difference between copy initialization and direct initialization?

...ain function : int main() { A a1 = 1; // OK: copy-initialization selects A::A(int) A a2(2); // OK: direct-initialization selects A::A(int) A a3 {4, 5}; // OK: direct-list-initialization selects A::A(int, int) A a4 = {4, 5}; // OK: copy-list-initialization selects A::A(i...
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How do I convert an enum to a list in C#? [duplicate]

...er way: Enum.GetValues(typeof(SomeEnum)) .Cast<SomeEnum>() .Select(v => v.ToString()) .ToList(); share | improve this answer | follow | ...