I have two versions of rails (2.1.0 and 2.2.2) installed in my computer. 7 Answers 7 ...

...et { if (_password == null) { _password = CallExpensiveOperation(); } return _password; } } share | improve this answer | ...

... RaisePropertyChanged("ViewModelCopyOfSomeProperty"); } But typically this is only needed if more than one object will be making changes to the Model's data, which is not usually the case. If you ever have a case where you don't actually have a reference to your Model property to attach t...

Rendering contexts usually have a solid color on the background (black or whatever, see the image below): 9 Answers ...

... There is no need for using NSAttributedString. All you need is a simple label with the proper textColor. Plus this simple solution will work with all versions of iOS, not just iOS 6. But if you needlessly wish to use NSAttributedString, you can do something like this: ...

... All these commands are called automatically at the appropriate times by iOS when you load/present/hide the view controller. It's important to note that these methods are attached to UIViewController and not to UIViews themsel...

... On ipython or jupyter notebook, you can use all the above mentioned ways, but i go with my_func? or ?my_func for quick summary of both method signature and docstring. I avoid using my_func?? (as commented by @rohan) for docstring and use it only to check th...

... This is generally caused by comparing two strings of incompatible collation or by attempting to select data of different collation into a combined column. The clause COLLATE allows you to specify the collation used in the query. For exa...

We have an application running locally where we're experiencing the following error: 25 Answers ...

... What you are looking for is called reverse geocoding. Google provides a server-side reverse geocoding service through the Google Geocoding API, which you should be able to use for your project. This is how a response to the following request would look ...