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ICollection Vs List in Entity Framework
...perations do not add or mutate things, they simply filter, group, project, etc. Forward-only, read-only sequences are all that's necessary to support those operations. When you have a Linq provider such as Entity Framework that deals with data persistence, the ability to Add is a substantial benefit...
Do you need to dispose of objects and set them to null?
...e collector sees fit. Sometimes, you may need to set an object to null in order to make it go out of scope (such as a static field whose value you no longer need), but overall there is usually no need to set to null.
Regarding disposing objects, I agree with @Andre. If the object is IDisposable i...
Transfer-Encoding: gzip vs. Content-Encoding: gzip
... would not be allowed to change, in addition to other ramifications (ETags etc). According to reality however, TE is not normally used for compression, and many servers/clients don't even support it out of the box, whereas CE is used more or less the way TE was intented to be used: as a transport la...
Can I access constants in settings.py from templates in Django?
...ings like settings.MEDIA_URL available to the template as {{ MEDIA_URL }}, etc.
If you're looking for access to other constants in the settings, then simply unpack the constants you want and add them to the context dictionary you're using in your view function, like so:
from django.conf import set...
How to set RelativeLayout layout params in code not in xml?
...n1 or button2. Secondly, dynamically declared Views (ImageViews, Buttons, etc.) get instantiated with an id of -1. An id of -1 will not work for a rule.
– Craig B
Dec 6 '11 at 17:38
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Converting Integer to String with comma for thousands
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@DreaminginCode To do it well Locale.getCurrent() is the solution
– Roger RV
Dec 27 '17 at 23:54
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Creating stored procedure and SQLite?
...ed functions in the host language (PHP, Python, Perl, C#, Javascript, Ruby etc). You can then use these custom functions as part of any SQLite select/update/insert/delete. I've done this in C# using DevArt's SQLite to implement password hashing.
...
How to detect incoming calls, in an Android device?
...to add a little snippet of code, android:enabled="true, to the receiver in order to detect incoming calls when the app is not currently running in the foreground:
<!--This part is inside the application-->
<receiver android:name=".CallReceiver" android:enabled="true">
&l...
Difference between method and function in Scala
...udes one of the FunctionX traits, such as Function0, Function1, Function2, etc. It might be including PartialFunction as well, which actually extends Function1.
Let's see the type signature for one of these traits:
trait Function2[-T1, -T2, +R] extends AnyRef
This trait has one abstract method (...
How to pass a URI to an intent?
I'm trying to pass a URI-Object to my Intent in order to use that URI
in another activity...
8 Answers
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