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MSSQL Error 'The underlying provider failed on Open'

I was using an .mdf for connecting to a database and entityClient . Now I want to change the connection string so that there will be no .mdf file. ...
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ExpandableListView - hide indicator for groups with no children

In an ExpandableListView , is there a way to hide the group indicator for groups with no children? 13 Answers ...
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PHPUnit assert that an exception was thrown?

...s->setExpectedException(InvalidArgumentException::class); //...and then add your test code that generates the exception exampleMethod($anInvalidArgument); } } expectException() PHPUnit documentation PHPUnit author article provides detailed explanation on testing exception...
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Modify file in place (same dest) using Gulp.js and a globbing pattern

...s attempting to convert .scss files into .css files (using gulp-ruby-sass) and then place the resulting .css file into the same place it found the original file. The problem is, since I'm using a globbing pattern, I don't necessarily know where the original file is stored. ...
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Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with

...rks by obtaining the client's operating system user name from the kernel and using it as the allowed database user name (with optional user name mapping). This method is only supported on local connections. Password authentication The password-based authentication methods are md5 and pas...
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ASP.NET MVC Conditional validation

...ional validation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method: public class Person : IValidatableObject { public string Name { get; set; } public bool IsSenior { get; set; } public Senior Senior { get; set; } public IEnumerable<Vali...
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std::auto_ptr to std::unique_ptr

With the new standard coming (and parts already available in some compilers), the new type std::unique_ptr is supposed to be a replacement for std::auto_ptr . ...
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Foreach loop, determine which is the last iteration of the loop

I have a foreach loop and need to execute some logic when the last item is chosen from the List , e.g.: 26 Answers ...
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Adding external library into Qt Creator project

...ave to separate the directory from the library name (without the extension and without any 'lib' prefix). Of course, if you are including a Windows specific lib, this really doesn't matter. In case you want to store your lib files in the project directory, you can reference them with the $$_PRO_FIL...
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Update a dataframe in pandas while iterating row by row

I have a pandas data frame that looks like this (its a pretty big one) 8 Answers 8 ...