It depends on the server configuration or the relevant directives session.gc_maxlifetime in php.ini. Typically the default is 24 minutes (1440 seconds), but your webhost may have altered the default to something else.
Every time a new device is opened par() will reset, so another option is simply do dev.off() and continue.
The most cross-distribution one is xdg-open http://stackoverflow.com
Assuming your Window subclasses don’t override DefaultStyleKey, you can simply add it to your Window style, since TextElement.FontFamilyProperty is an inherited property: <Style TargetType=”{x:Type Window}”> <Setter Property=”FontFamily” Value=”Segoe UI” /> </Style> You also need to add the following to your App constructor after the InitializeComponent call: FrameworkElement.StyleProperty.OverrideMetadata(typeof(Window), new FrameworkPropertyMetadata { DefaultValue = FindResource(typeof(Window)) }); How … Read more
I found this in a blog: “What does this C# code look like in F#? (part one: expressions and statements)” C# has an operator called “default” that returns the zero-initialization value of a given type: default(int) It has limited utility; most commonly you may use default(T) in a generic. F# has a similar construct as … Read more
I don’t know why, but the JLS is very clear: Discussion Note that null is not a legal element value for any element type. And the definition of a default element is: DefaultValue: default ElementValue Unfortunately I keep finding that the new language features (Enums and now Annotations) have very unhelpful compiler error messages when … Read more
Place this in .gvimrc: set guifont=Monaco:h12 Note the lack of spaces around the equals sign.
I would modify @vault’s answer above slightly (this may be a new feature). It is definitely desirable to refer to the field by a natural name. However instead of overriding the Manager I would simply use the to_field param of ForeignKey: class Country(models.Model): sigla = models.CharField(max_length=5, unique=True) def __unicode__(self): return u’%s’ % self.sigla class City(models.Model): … Read more
Subclassing is the best option. I would subclass your main generic class: class BaseGeneric<T,U> with a specific class class MyGeneric<T> : BaseGeneric<T, string> This makes it easy to keep your logic in one place (the base class), but also easy to provide both usage options. Depending on the class, there is probably very little extra … Read more
As soon as you access the map with the [] operator, if the key doesn’t exist it gets added. The int gets “value initialization” invoked – so it will get a value of 0.