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MVVM in WPF - How to alert ViewModel of changes in Model… or should I?

...) RaisePropertyChanged("ViewModelCopyOfSomeProperty"); } But typically this is only needed if more than one object will be making changes to the Model's data, which is not usually the case. If you ever have a case where you don't actually have a reference to your Model property to attach ...
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How to return a part of an array in Ruby?

... @Rafeh cheers, been wondering how this junk works, -1 did the trick – Ben Sinclair Dec 2 '15 at 8:36 ...
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How to change the default collation of a table?

...Edited the answer, thanks to the prompting of some comments: Should avoid recommending utf8. It's almost never what you want, and often leads to unexpected messes. The utf8 character set is not fully compatible with UTF-8. The utf8mb4 character set is what you want if you want UTF-8. – Rich Re...
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How to do an INNER JOIN on multiple columns

... How on Earth did this get to 14 upvotes? The statement is incorrect both in syntax and meaning. – ultracrepidarian Jun 27 '19 at 23:41 ...
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How to see the CREATE VIEW code for a view in PostgreSQL?

... @elias: just use the version that uses an OID by casting the name to an oid: select pg_get_viewdef('viewname'::regclass, true) – a_horse_with_no_name Jan 31 '13 at 20:44 ...
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How to suppress Pandas Future warning ?

...lf. Maybe there's an option internally to suppress them, or a way to override things, but I couldn't find one. For those who need to know why... Suppose that you want to ensure a clean working environment. At the top of your script, you put pd.reset_option('all'). With Pandas 0.23.4, you get the...
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How to correctly require a specific commit in Composer so that it would be available for dependent p

... package to my own joshuapaling github account, and the package was now residing at the URL https://github.com/joshuapaling/Cake-Resque.git, that had not influenced the package's name at all, from composers perspective. A stupid error - but I'm new to composer, and it wasn't clear at first! So, I h...
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jQuery send string as POST parameters

...rstand your question. Answer is: add "traditional" parameter to your ajax call like this: $.ajax({ traditional: true, type: "POST", url: url, data: custom , success: ok, dataType: "json" }); And it will work with parameters PASSED AS A STRING. ...
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Remove the string on the beginning of an URL

...movePrefix on the String class), conversely it is quite convenient to just call .removePrefix. It's up to you. – Flavien Volken Mar 2 at 6:27 add a comment  ...
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How to “set a breakpoint in malloc_error_break to debug”

... overwriting the file with a different image. This caused an error when I called UIImagePNGRepresentation on the original image (not when the file was actually overwritten). – Robert Aug 9 '14 at 17:10 ...