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Question mark (?) in XML attributes for Android
Can anyone explain the question mark means in Android XML attributes?
2 Answers
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lenses, fclabels, data-accessor - which library for structure access and mutation is better
...ens (Iso a (b,c))
These are primarily useful as a way to think about the meaning of lenses, and we can use them as a reasoning tool to explain other lenses.
van Laarhoven Lenses
We can model lenses such that they can be composed with (.) and id, even without a Category instance by using
type Le...
How can i query for null values in entity framework?
...d the default behavior of EF6 to compensate for three-valued logic.
This means that existing code that relies on the old behavior (null != null, but only when comparing to a variable) will either need to be changed to not rely on that behavior, or set UseCSharpNullComparisonBehavior to false to us...
Eclipse debugger always blocks on ThreadPoolExecutor without any obvious exception, why?
...dd Class"
Add java.util.concurrent.ThreadPoolExecutor
Untick the checkbox, meaning these will be ignored
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Differences between Intent and PendingIntent
...or example: alarm, notification).
If foreign app sent intent to your app, mean that foreign app know about the content of the intent. and foreign app make decision to send intent then your app must process intent to meet some conditions => your app get performance resource of system.
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Server.MapPath(“.”), Server.MapPath(“~”), Server.MapPath(@“\”), ...
...t being processed.
Note: in C#, @ is the verbatim literal string operator meaning that the string should be used "as is" and not be processed for escape sequences.
Footnotes
Server.MapPath(null) and Server.MapPath("") will produce this effect too.
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How can I count the number of children?
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@AlecAnanian, No, I know how. I mean I was hoping Nick would add that to his answer too.
– Starx
Sep 26 '12 at 5:50
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How to print a linebreak in a python function?
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@user3527975, I mean backwards in the sense of reversed from how it should be.
– Winston Ewert
Mar 1 '16 at 17:52
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keycode 13 is for which key
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Keycode 13 means the Enter key.
If you would want to get more keycodes and what the key the key is, go to: https://keycode.info
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DTO and DAO concepts and MVC [closed]
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I'm not sure what you mean by "separate controller". From my readings, the controller in MVC should be as skinny as possible and your business logic should be encapsulated in your models.
– Paul Carlton
Nov ...