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How to make layout with rounded corners..?
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How do you avoid the error Element shape doesn't have the required attribute android:layout_height?
– Lorenz
Jul 31 '15 at 13:38
2
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Why should I use document based database instead of relational database?
Why should I use document based database like CouchDB instead of using relational database.
Are there any typical kinds of applications or domains where the document based database is more suitable than the relational database?
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NSURLRequest setting the HTTP header
I need to set the HTTP header for a request. In the documentation for the NSURLRequest class I didn't find anything regarding the HTTP header. How can I set the HTTP header to contain custom data?
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Prevent double submission of forms in jQuery
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Update in 2018: I just got some points for this old answer, and just wanted to add that the best solution would be to make the operation idempotent so that duplicate submissions are harmless.
Eg, if the form creates an order, put a unique ID in the form....
Covariance and contravariance real world example
...have a class Person and a class that derives from it, Teacher. You have some operations that take an IEnumerable<Person> as the argument. In your School class you have a method that returns an IEnumerable<Teacher>. Covariance allows you to directly use that result for the methods that...
nosetests is capturing the output of my print statements. How to circumvent this?
...r the useful answer. I also found it helpful to know I could pass this argument into nose.main() as described in the post: stackoverflow.com/questions/7070501/…
– David Hall
Feb 1 '12 at 15:22
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Attempt to set a non-property-list object as an NSUserDefaults
...save an array of custom objects to NSUserDefaults. You can't do that. Implementing the NSCoding methods doesn't help. You can only store things like NSArray, NSDictionary, NSString, NSData, NSNumber, and NSDate in NSUserDefaults.
You need to convert the object to NSData (like you have in some of th...
How to implement a rule engine?
...ode (using Expression trees) and does not need any complicated switch statements:
(Edit : full working example with generic method)
public Func<User, bool> CompileRule(Rule r)
{
var paramUser = Expression.Parameter(typeof(User));
Expression expr = BuildExpr(r, paramUser);
// build ...
What's the difference between unit tests and integration tests? [duplicate]
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A unit test is a test written by the programmer to verify that a relatively small piece of code is doing what it is intended to do. They are narrow in scope, they should be easy to write and execute, and their effectiveness depends on what the programmer considers to b...
Git SVN error: a Git process crashed in the repository earlier
...m what I have read, it seems that the idea is to delete the lock file. The message says:
7 Answers
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