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Using margin:auto to vertically-align a div
...nts
margin-top:auto and margin-bottom:auto because their used values would compute as zero
margin-top:-50% because percentage-based margin values are calculated relative to the width of containing block
In fact, the nature of document flow and element height calculation algorithms make it impossibl...
BackgroundWorker vs background Thread
...ckgroundWorker as a standard Thread.
The reason why BackgroundWorker is recommended for things that you don't want to tie up the UI thread is because it exposes some nice events when doing Win Forms development.
Events like RunWorkerCompleted to signal when the thread has completed what it needed ...
When to call activity context OR application context?
...asons why not to use getApplicationContext() wherever you go:
It's not a complete Context, supporting everything that Activity does. Various things you will try to do with this Context will fail, mostly related to the GUI.
It can create memory leaks, if the Context from getApplicationContext() hol...
What's the difference between session.Merge and session.SaveOrUpdate?
...ance
the persistent instance is returned
the given instance does not become associated with the session, it
remains detached
You should use Merge() if you are trying to update objects that were at one point detached from the session, especially if there might be persistent instances of t...
When is it appropriate to use C# partial classes?
...ner would spit out all of the code inside of a region with strongly worded comments about not modifying the code. It had to insert all sorts of heuristics to find the generated code for later processing. Now it can simply open the designer.cs file and have a high degree of confidence that it contai...
How to create a directory if it doesn't exist using Node.js?
...when it tries writing to files in it. The answer by @josh3736 is much more complete and totally underrated.
– Benni
Jan 15 '19 at 7:59
...
How do you rename a MongoDB database?
...n the future)
other locations I may be missing
This is just to accomplish a rename of a single database in a standalone mongod instance. For replica sets the above would need to be done on every replica node, plus on each node every single oplog entry that refers this database would have t...
How to use NULL or empty string in SQL
...
according to @Bradc 's answer in this stackoverflow.com/questions/799584/…, better to use the first approach.
– Sameera R.
Feb 9 '16 at 5:30
add a com...
Best practices for large solutions in Visual Studio (2008) [closed]
...
Thanks irperez for the comments
– Sayed Ibrahim Hashimi
Jun 9 '11 at 2:45
2
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