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What difference is there between WebClient and HTTPWebRequest classes in .NET?

...lByRefObject System.Net.WebRequest The WebRequest is an abstract base class. So you actually don't use it directly. You use it through it derived classes - HttpWebRequest and FileWebRequest. You use Create method of WebRequest to create an instance of WebRequest. GetResponseStream return...
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Running a specific test case in Django when your app has a tests directory

... a method called build_test(label) that figures out what test cases to run based on the label. Looking into this method it turns out they're doing a getattr() on either the "models" or "test" module. This means if you return a suite the test runner isn't looking for your test cases in that suite, ...
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What issues should be considered when overriding equals and hashCode in Java?

....age). isEquals(); } } Also remember: When using a hash-based Collection or Map such as HashSet, LinkedHashSet, HashMap, Hashtable, or WeakHashMap, make sure that the hashCode() of the key objects that you put into the collection never changes while the object is in the collection...
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How to move columns in a MySQL table?

... Have in mind that changed order will not be reflected in database SQL dumps. – skalee Jun 16 '15 at 4:07 3 ...
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Are email addresses case sensitive?

...actice though, no widely used mail systems distinguish different addresses based on case. The part after the @ sign however is the domain and according to RFC 1035, section 3.1, "Name servers and resolvers must compare [domains] in a case-insensitive manner" In short, you are safe to treat e...
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Scrollview vertical and horizontal in android

...ew", I thought I should add this here. Matt Clark has built a custom view based on the Android source, and it seems to work perfectly: Two Dimensional ScrollView Beware that the class in that page has a bug calculating the view's horizonal width. A fix by Manuel Hilty is in the comments: Solut...
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?

... @dev_feed In terms of database design I don't see the link back to be beneficial, but using the example above the link back could simplify finding a student given an address. – edhedges Sep 6 '14 at 23:23 ...
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String.IsNullOrWhiteSpace in LINQ Expression

...pe)) ); return exp; } return base.VisitMethodCall(node); } } public static class EfQueryableExtensions { public static IQueryable<T> WhereEx<T>(this IQueryable<T> queryable, Expression<Func<T, bool>> where) { ...
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How to Test a Concern in Rails

...dity of objects or invoke ActiveRecord callbacks unless you set up the database accordingly (because your dummy class won't have a database table backing it). Moreover, you'll want to not only test the concern but also test the concern's behavior inside your model specs. So why not kill two birds w...
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What is the maximum possible length of a .NET string?

... Based on my highly scientific and accurate experiment, it tops out on my machine well before 1,000,000,000 characters. (I'm still running the code below to get a better pinpoint). UPDATE: After a few hours, I've given up. Fi...