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ASP.NET MVC Yes/No Radio Buttons with Strongly Bound Model MVC

... The second parameter is selected, so use the ! to select the no value when the boolean is false. <%= Html.RadioButton("blah", !Model.blah) %> Yes <%= Html.RadioButton("blah", Model.blah) %> No ...
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When and why are database joins expensive?

...s back to mitigating the size of the working set. Joins involving properly selected keys with correctly set up indexes are cheap, not expensive, because they allow significant pruning of the result before the rows are materialised. Materialising the result involves bulk disk reads which are the mo...
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Expand/collapse section in UITableView in iOS

... You could set up a cell to LOOK like a header, and setup the tableView:didSelectRowAtIndexPath to manually expand or collapse the section it is in. I'd store an array of booleans corresponding the the "expended" value of each of your sections. Then you could have the tableView:didSelectRowAtIndexP...
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How do I execute a command and get the output of the command within C++ using POSIX?

...} /* switch (pid = fork())*/ } You also might want to play around with select() and non-blocking reads. fd_set readfds; struct timeval timeout; timeout.tv_sec = 0; /* Seconds */ timeout.tv_usec = 1000; /* Microseconds */ FD_ZERO(&readfds); FD_SET(childToParent[READ_FD], &amp...
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Changing API level Android Studio

... stable, there is an easy way to do it. Right click on your project file Select "Open Module Settings" Go to the "Flavors" tab. Select the Min SDK Version from the drop down list PS: Though this question was already answered but Android Studio has changed a little bit by its stable release....
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Sleep Command in T-SQL?

...(@hours * 60) * 60)) - (@mins * 60) IF @hours > 23 BEGIN select @hours = 23 select @mins = 59 select @secs = 59 -- 'maximum wait time is 23 hours, 59 minutes and 59 seconds.' END declare @sql nvarchar(24) = 'WAITFOR DELAY '+char(39)+cast(@hours as nvarchar(2))...
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MySQL check if a table exists without throwing an exception

... If you're using MySQL 5.0 and later, you could try: SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = '[database name]' AND table_name = '[table name]'; Any results indicate the table exists. From: http://www.electrictoolbox.com/check-if-mysql-table-exis...
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How to access a mobile's camera from a web app?

...re="capture" (Boolean) . The attribute is used to force capture instead of selecting from the library. See the spec and Correct Syntax for HTML Media Capture – Octavian Naicu Nov 9 '16 at 15:56 ...
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Java project in Eclipse: The type java.lang.Object cannot be resolved. It is indirectly referenced f

...teps could help: Right-click on project » Properties » Java Build Path Select Libraries tab Find the JRE System Library and remove it Click Add Library... button at right side » Add the JRE System Library (Workspace default JRE) ...
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jQuery OR Selector?

I am wondering if there is a way to have "OR" logic in jQuery selectors. For example, I know an element is either a descendant of an element with class classA or classB, and I want to do something like elem.parents('.classA or .classB') . Does jQuery provide such functionality? ...