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What is the use of ObservableCollection in .net?
...ed,
INotifyPropertyChanged
As such it is very useful when you want to know when the collection has changed. An event is triggered that will tell the user what entries have been added/removed or moved.
More importantly they are very useful when using databinding on a form.
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Xcode 4, Core Data Model Version - Set Current Version
... *.xcdatamodeld file that contains both *.xcdatamodel files.
Xcode should now recognize the relationships and allow you to expand the *.xcdatamodeld file in the project navigator to show both *.xcdatamodel files under the parent xcdatamodeld bundle, also showing a green checkmark next to the curren...
“Inspect” a hover element?
...g others) with the checkbox provided.
If it's not clear at all, let me know and I can add a few screenshots.
Edited: screenshot added.
And finally and as I say at the begining, I only be able to do this if the hover is set with CSS:HOVER... when you control the hover state with jQuery.onMouseOve...
Cache an HTTP 'Get' service response in AngularJS?
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I think there's an even easier way now. This enables basic caching for all $http requests (which $resource inherits):
var app = angular.module('myApp',[])
.config(['$httpProvider', function ($httpProvider) {
// enable http caching
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URL rewriting with PHP
...e - redirect anything else to index.php
index.php
Because everything is now redirected to index.php, there will be determined if the url is correct, all parameters are present, and if the type of parameters are correct.
To test the url we need to have a set of rules, and the best tool for that i...
Can I find out the return value before returning while debugging in Eclipse?
... it:
step over the return statement (using "Step Over" or "Step Return")
now the first line in the variable view will show the result of the return statement, as "[statement xxx] returned: "
See Eclipse Project Oxygen (4.7) M2 - New and Noteworthy for details.
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FileSystemWatcher Changed event is raised twice
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I am afraid that this is a well-known bug/feature of the FileSystemWatcher class. This is from the documentation of the class:
You may notice in certain situations that a single creation event generates multiple Created events that are handled by your co...
custom listview adapter getView method being called multiple times, and in no coherent order
... ListView to measure a few children out of the adapter at layout time, to know how big it should be. This is what provides ListView with the convertViews you see passed to getView() even before you scroll.
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Publish to S3 using Git?
Does anyone know how to do this? So far I haven't been able to find anything useful via Google.
8 Answers
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Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
... to "enter" the dir)
sudo chgrp -R _www ~/my/web/root (all web content is now group _www)
chmod -R go-rwx ~/my/web/root (nobody other than owner can access web content)
chmod -R g+rx ~/my/web/root (all web content is now readable/executable/enterable by _www)
All other solutions leave files open ...