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Is is possible to check if an object is already attached to a data context in Entity Framework?
...ties refer to the same entity. I haven't figure out how to only attach the base entity, so I had to redesign the project a bit, to use separate contexts for each "business transaction", like it was designed for. I'll note this for future projects.
– Aske B.
Jan...
How does the main() method work in C?
...ents.
The leftmost arguments are closer to the top of the stack, or to the base of the stack frame, so that spurious arguments do not invalidate the addressing.
One set of calling conventions which obeys these rules is stack-based parameter passing whereby the caller pops the arguments, and they a...
How to return an array from JNI to Java?
...
Based on the asked question, this is already explained in the first answer that how can we pass int[] via jobjectArray. But Here is an example how we can return a jobjectArray which contains lists of data. This can be helpful...
Bootstrap 3 offset on right not left
...
I modified Bootstrap SASS (v3.3.5) based on Rukshan's answer
Add this in the end of the calc-grid-column mixin in mixins/_grid-framework.scss, right below the $type == offset if condition.
@if ($type == offset-right) {
.col-#{$class}-offset-right-#{$in...
Difference between a theta join, equijoin and natural join
...ers to an arbitrary condition used as the criterion for the join. (see Database Systems: The Complete Book by Garcia-Molina, Ullman, Widom, chapter 2, Theta Join)
– Ram Rajamony
Feb 4 '17 at 21:14
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When should I use the Visitor Design Pattern? [closed]
... a new feature, they would need to add that method to every feature in the base class. This is particularly hard when the base classes appear in a separate library, or are produced by a separate team.
(I have heard it argued that the Visitor pattern is in conflict with good OO practices, because it...
Running a cron every 30 seconds
... executing the "meat" of the job, /path/to/executable.
For other (non-cron-based) options, see the other answers here, particularly the ones mentioning fcron and systemd. These are probably preferable assuming your system has the ability to use them (such as installing fcron or having a distro with ...
git --git-dir not working as expected
...d ../..; git grep foo)
for d in d1 d2 d3; do (cd $d && git svn rebase); done
The methods shown above are acceptable for scripting but are too cumbersome for quick command line invocations.
With this new option, the above can be done with fewer keystrokes:
git -C ~/foo ...
Detecting that the browser has no mouse and is touch-only
...at works smoothly no matter the context of the user. Then make assumptions based on browser features/media queries to add functionality that will be relative in the assumed context. Presence of a mouse is just one of the multitudes of ways in which different users on different devices experience you...
conditional unique constraint
...HECK constraint "CheckActiveCountConstraint". The conflict occurred in database "TestSchema", table "dbo.CheckConstraint".
INSERT INTO CheckConstraint VALUES (2, 'Oh no!', 1);
SELECT * FROM CheckConstraint;
-- Id Name RecordStatus
-- ---- ------------ ------------
-- 1 No Problems 2
-...