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How to remove all event handlers from an event

... I found a solution on the MSDN forums. The sample code below will remove all Click events from button1. public partial class Form1 : Form { public Form1() { InitializeComponent(); button1.Click += button1_Click; button1.Click += button1_Click2; button2.Clic...
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How to parse a date? [duplicate]

...me by default generates strings using the ISO 8601 formats but extended by appending the name of the time zone in brackets. String input = "Thu Jun 18 20:56:02 EDT 2009"; DateTimeFormatter formatter = DateTimeFormatter.ofPattern ( "EEE MMM d HH:mm:ss zzz yyyy" , Locale.ENGLISH ); ZonedDateTime zdt ...
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Javascript checkbox onChange

... Here's a JsFiddle where all the different ways can be tested: click, keyboard, label and accesskey. They all trigger the event in Firefox. – Roman Starkov May 8 '15 at 12:59 ...
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Start may not be called on a promise-style task. exception is coming

...s already started the task before giving it to you. You should only ever call Start on a task that you create by calling its constructor, and you shouldn't even do that unless you have a compelling reason to not start the task when you create it; if you want it started right away you should use Tas...
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Parsing IPv6 extension headers containing unknown extensions

... you don't know how to interpret. Routers can route such packets, because all they need is the routing header. Deep packet inspection gadgets and suchlike need to know a lot, but then that's their fate anyway. Edited to add: This design means that middleboxes can only change what they know. If a m...
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Paste text on Android Emulator

...ers - after trying to send 'ლ\(ಠ益ಠლ\)', it just says 'Killed' or appears to succeed and nothing is typed, nor do I have anything pasteable in the emulator. The SMS method (I tried from DDMS) doesn't even seem to be working here, it displays as "?(????)" :( – Groxx ...
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Detect backspace in empty UITextField

...yTextField - (void)deleteBackward { [super deleteBackward]; if ([_myDelegate respondsToSelector:@selector(textFieldDidDelete)]){ [_myDelegate textFieldDidDelete]; } } @end Now simply add MyTextFieldDelegate to your UIViewController and set your UITextFields myDelegate to sel...
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How do I remove all non alphanumeric characters from a string except dash?

How do I remove all non alphanumeric characters from a string except dash and space characters? 13 Answers ...
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MySQL case insensitive select

...ble statement this way instead: varchar(20) CHARACTER SET utf8 COLLATE utf8_bin – gregthegeek Mar 19 '14 at 18:56 ...
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How to add images to README.md on GitHub?

...ectory not the repo, so if you have 'myimage.png' in the same dir as 'about_pics.md' then the markup is:![What is this](myimage.png) – Rich Mar 8 '17 at 2:06 ...