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Explain ExtJS 4 event handling

...t must containg Ext.util.Observable as a mixin. All built-in widgets (like Panel, Form, Tree, Grid, ...) has Ext.util.Observable as a mixin by default. For widgets there are two ways of assigning handlers. The first one - is to use on method (or addListener). Let's for example create Button widget ...
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What is the best regular expression to check if a string is a valid URL?

... I wrote my URL (actually IRI, internationalized) pattern to comply with RFC 3987 (http://www.faqs.org/rfcs/rfc3987.html). These are in PCRE syntax. For absolute IRIs (internationalized): /^[a-z](?:[-a-z0-9\+\.])*:(?:\/\/(?:(?:%[0-9a-f][0-9a-f]...
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How to search in all the files of a project in IntelliJ Idea? [duplicate]

...rticular string in all the code files of a project of mine. Search/replace panels popping up on Ctrl + F / Ctrl + R don't seem to offer to chose the search domain. Is there such a facility available in IntelliJ Idea? ...
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Are there conventions on how to name resources?

... and colors I use in those layouts. However, I do try generalizing. e.g if all buttons have a common textColor, I won't prefix the name with the layout. The resource name would be 'button_textColor'. If all textColors are using the same the resource it will be named 'textColor'. For Styles, this is ...
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How do you create an asynchronous method in C#?

...what if that is not the case. What if were trying to wrap some code that calls BeginInvoke with some callback code? – Ricibob Aug 27 '13 at 10:46 2 ...
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How to cache data in a MVC application

... I agree with Oli.. getting the results from the actual call to the DB is better than getting them from the cache – CodeClimber Jul 8 '09 at 21:48 1 ...
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Are PHP short tags acceptable to use?

...t). As you say, lots of shared hosts do support shorttags but "lots" isn't all of them. If you want to share your scripts, it's best to use the full syntax. I agree that <? and <?= are easier on programmers than <?php and <?php echo but it is possible to do a bulk find-and-replace as lo...
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Multiple DB Contexts in the Same DB and Application in EF 6 and Code First Migrations

... Not the answer you're looking for? Browse other questions tagged asp.net-mvc entity-framework ef-code-first entity-framework-migrations or ask your own question.
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Can I force a page break in HTML printing?

... Add a CSS class called "pagebreak" (or "pb"), like so: @media print { .pagebreak { page-break-before: always; } /* page-break-after works, as well */ } Then add an empty DIV tag (or any block element that generates a box) where you wan...
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How to find path of active app.config file?

...y.GetEntryAssembly() + ".config" which doesn't work in some situations in ASP.NET and in some situations when using AppDomains. – Contango Oct 8 '13 at 13:27 ...