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When to use static classes in C# [duplicate]

...ation of helper methods that would otherwise lie around causing redundancy and maintenance hell. They're very easy to use, no instantiation, no disposal, just fire'n'forget. I guess this was my first unwitting attempt at creating a service-oriented architecture - lots of stateless services that just...
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Codeigniter - no input file specified

I am a beginner in Codeigniter and I saw a CI tutorial and was just trying to do a simple thing. I downloaded the CI and added this file to controller directory, but it won't work. ...
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ASP.NET MVC - TempData - Good or bad practice

... I kind of think of temp data as being a fire-and-forget mechanism for notifying the user. Its great to give them a reminder of something they recently did, but I'd also be hesitant to make it a required step in some user process. The reason being if they refresh the p...
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What's so great about Lisp? [closed]

...ng Lisp demonstrates developer enlightenment. I've heard of 3 weaknesses (and their counter-arguments): Dynamic typing. There's an argument for statically typed languages out there revolving around giving the compiler enough information to catch a certain class of errors so they don't happen at...
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What is the id( ) function used for?

I read the Python 2 docs and noticed the id() function: 13 Answers 13 ...
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What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa

... for nullable! A column should be either nullable in both the O/R-Designer and SQL, or not nullable in both. For example, a NVARCHAR column "title" is marked as NULLable in your database, and contains the value NULL. Even though the column is marked as NOT NULLable in your O/R-Mapping, LINQ will lo...
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Way to get number of digits in an int?

...thematically, numbers don't have a length, nor do they have digits. Length and digits are both properties of a physical representation of a number in a specific base, i.e. a String. A logarithm-based solution does (some of) the same things the String-based one does internally, and probably does so ...
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How to make ruler always be shown in Sublime text 2?

I use Sublime Text 2 and want a Ruler to be shown in every file with specific line-height. But I have to show it manually in every file. ...
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How to disallow temporaries

...macro-based solution: #define Foo class Foo The statement Foo("hi"); expands to class Foo("hi");, which is ill-formed; but Foo a("hi") expands to class Foo a("hi"), which is correct. This has the advantage that it is both source- and binary-compatible with existing (correct) code. (This claim is...
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Why can't I have abstract static methods in C#?

I've been working with providers a fair bit lately, and I came across an interesting situation where I wanted to have an abstract class that had an abstract static method. I read a few posts on the topic, and it sort of made sense, but is there a nice clear explanation? ...