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Handle ModelState Validation in ASP.NET Web API

...ssuming JSON, but same basic principle for XML): HTTP/1.1 400 Bad Request Content-Type: application/json; charset=utf-8 (some headers removed here) ["A value is required.","The field First is required.","Some custom errorm essage."] You can of course construct your error object/list any way you ...
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How to set SQL Server connection string?

...rver or DBA would not want just anyone to be able to connect or modify the contents of the server. This is the whole purpose of security accounts. If a single username/pwd would work on just any machine, it would provide no protection. That "sa" thing you have heard of, does not work with SQL Server...
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Groovy Shell warning “Could not open/create prefs root node …”

...ld work. Alternatively, save and m>exm>ecute a *.reg file with the following content: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs] share | improve this answer ...
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What's the key difference between HTML 4 and HTML 5?

... protocols or media types. An editing API in combination with a new global contenteditable attribute. A drag & drop API in combination with a draggable attribute. An API that m>exm>poses the history and allows pages to add to it to prevent breaking the back button. ...
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Spring Boot - inject map from application.yml

I have a Spring Boot application with the following application.yml - taken basically from here : 7 Answers ...
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How do I restore a dump file from mysqldump?

...mysqldump, what it contains is a big SQL script for recreating the databse contents. So we restore it by using starting up MySQL’s command-line client: mysql -uroot -p (where root is our admin user name for MySQL), and once connected to the database we need commands to create the database and ...
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delete a.x vs a.x = undefined

... in the constructor). Whereas setting the value to undefined releases the content as well but without forcing to modify the structure. share | improve this answer | follow ...
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What do the makefile symbols $@ and $< mean?

... $@ is the name of the target being generated, and $&amp;lt; the first prerequisite (usually a source file). You can find a list of all these special variables in the GNU Make manual. For m>exm>ample, consider the following declaration: all: libr...
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Painless way to install a new version of R?

Andrew Gelman recently lamented the lack of an easy upgrade process for R (probably more relevant on Windows than Linux). Does anyone have a good trick for doing the upgrade, from installing the software to copying all the settings/packages over? ...
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log4net not working

...lled code, ensure that the log4net.config came along for the ride (set to 'Content' in compiler) ensure that the user that the process runs as has write rights to the folder where the logs are to be written if in doubt, give promiscuous permissions to c:\temp\ and get everything to log to there () ...