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In what order are Panels the most efficient in terms of render time and performance?

...to prevent unneeded use of memory and processor. MUCH more performant for sets of items. Probably slightly less performant for items that fit on the screen due to the bounds checking. The SDK only provides one subclass of this, the VirtualizingStackPanel. WrapPanel Positions child elements i...
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How can I change the copyright template in Xcode 4?

... __MyCompanyName__ being ugly (or if you aren't coding for the company set up in your profile), let's change it. Click on your project root in the Project Navigator on the left Enable your Utilities view on the right while the project root is highlighted Select the File Inspector, while the Id...
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What are the differences between poll and select?

...evens (rstevens@noao.edu): The basic difference is that select()'s fd_set is a bit mask and therefore has some fixed size. It would be possible for the kernel to not limit this size when the kernel is compiled, allowing the application to define FD_SETSIZE to whatever it wants (as the co...
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Composer: how can I install another dependency without updating old ones?

...plains, stating "Your requirements could not be resolved to an installable set of packages.", you can resolve this by passing the flag --with-dependencies. This will whitelist all dependencies of the package you are trying to install/update (but none of your other dependencies). Regarding the quest...
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What is “lifting” in Scala?

...nction Remember a PartialFunction[A, B] is a function defined for some subset of the domain A (as specified by the isDefinedAt method). You can "lift" a PartialFunction[A, B] into a Function[A, Option[B]]. That is, a function defined over the whole of A but whose values are of type Option[B] This ...
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Repeater, ListView, DataList, DataGrid, GridView … Which to choose?

...works like the Repeater control. It repeats data for each row in your data set, and it displays this data according to your defined template. However, it lays out the data defined in the template within various HTML structures. This includes options for horizontal or vertical layout, and it also all...
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“render :nothing => true” returns empty plaintext file?

...sponse is. If it's anything other than text/html, you can try to manually set the content type like this: render :nothing => true, :status => 200, :content_type => 'text/html' share | im...
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Variable interpolation in the shell

... is not, so the shell tried to interpolate $filepath_newstap. You can use set -u to make the shell exit with an error when you reference an undefined variable. share | improve this answer ...
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Streaming a video file to an html5 video player with Node.js so that the video controls continue to

...as to limit the max chunksize being sent in the response. The other answer set end like so: var end = positions[1] ? parseInt(positions[1], 10) : total - 1; ...which has the effect of sending the rest of the file from the requested start position through its last byte, no matter how many bytes th...
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HTML5 Canvas 100% Width Height of Viewport?

... * Your drawings need to be inside this function otherwise they will be reset when * you resize the browser window and the canvas goes will be cleared. */ drawStuff(); } resizeCanvas(); function drawStuff() { // do your drawing stuff ...