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notifyDataSetChanged example
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330
For an ArrayAdapter, notifyDataSetChanged only works if you use the add(), insert(), remove(), a...
Long press gesture on UICollectionViewCell
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220
Objective-C
In your myCollectionViewController.h file add the UIGestureRecognizerDelegate proto...
How to check if an email address exists without sending an email?
...mand, but it is intended for exactly this. If the server responds with a 2.0.0 DSN, the user exists.
VRFY user
You can issue a RCPT, and see if the mail is rejected.
MAIL FROM:<>
RCPT TO:<user@domain>
If the user doesn't exist, you'll get a 5.1.1 DSN. However, just because the ema...
How to prevent logback from outputting its own status at the start of every log when using a layout
...h logback/slf4j (most recent version slf4j-api-1.6.1, logback core/classic 0.9.24). Simplest log configuration for testing is:
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How can I do division with variables in a Linux shell?
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200
Those variables are shell variables. To expand them as parameters to another program (ie expr)...
Determining the last changelist synced to in Perforce
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Associating enums with strings in C#
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edited Oct 16 '19 at 20:51
CarenRose
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answered Aug 27 '09 a...
JavaScript: How do I print a message to the error console?
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470
Install Firebug and then you can use console.log(...) and console.debug(...), etc. (see the docu...
Add a column to existing table and uniquely number them on MS SQL Server
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answered Sep 20 '08 at 14:01
Simon JohnsonSimon Johnson
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What do Clustered and Non clustered index actually mean?
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Alec Alameddine
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answered Aug 9 '09 at 16:05
Shiraz BhaijiShiraz...