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How to bind inverse boolean properties in WPF?
...dOnly property? If the object being bound is a ViewModel in a MVVM domain, then the additional property makes perfect sense. If it's a direct Entity model, you might consider composition and presenting a specialized ViewModel of your entity to the form.
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Nexus 7 not visible over USB via “adb devices” from Windows 7 x64
...nyone else wondering about how to switch to Camera mode, go to 'Settings', then in the 'Device' section, click 'Storage', then click the ellipse on the right-hand side of the header pane, and click 'USB computer connection', then in the 'Connect As' section, check the 'Camera (PTP)' option, then it ...
AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?
...e request to look for CORS headers. If the request is acceptable, it will then send the real request. If you're doing this cross-domain, you will simply have to deal with it or else find a way to make the request non-cross-domain. This is why the jQuery bug was closed as won't-fix. This is by desig...
Will using 'var' affect performance?
... do exactly the same thing. If Foo returned a List, rather than an IList, then all three lines would compile but the third line would behave like the first line, not the second.
– Servy
Nov 17 '16 at 21:48
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How to convert from System.Enum to base integer?
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I got it to work by casting to an object and then to an int:
public static class EnumExtensions
{
public static int ToInt(this Enum enumValue)
{
return (int)((object)enumValue);
}
}
This is ugly and probably not the best way. I'll keep messing wit...
Behaviour of final static method
...is does what you want it to do and not to be hidden by a subclass version. Then you could make it final and prevent it from being hidden in the subclass. And you can be sure that the following code will call the method from your class A:
B b = new B();
b.ts();
Ok, admittetly that is somehow const...
to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...to the GPU. This round-trip of getting an image from the GPU, changing it, then uploading the whole image (or at least a comparatively large chunk of it) back to the GPU is rather slow. Also, the actual drawing that Quartz does, while really fast for what you are doing, is way slower than what the G...
When to use Vanilla JavaScript vs. jQuery?
...lly, attr() is massively overused. If you're only dealing with one element then you'll rarely need attr(). Two of my favourites are the confusion around the checked property of checkboxes (all sorts of mystical incantations around that one: $(this).attr("checked", "checked"), $(this).is(":checked") ...
How to check if the user can go back in browser history or not
...
or
history.go(-1);
and it's just expected that if you can't go back then clicking the link does nothing.
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Securely storing environment variables in GAE with app.yaml
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@obl - An App Engine app is automatically authenticated to its own datastore, no authentication details needed. It's pretty neat :-)
– Martin Omander
Jul 9 '19 at 14:31
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