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    <p>I can think of a few:</p> <ul> <li>Everything is asynchronous. Well, anything service-oriented at any rate. While Swing sometimes acts like this via SwingWorkers and the like, Swing is fundamentally synchronous via the EDT (event dispatching thread). It can take a bit of getting used to;</li> <li>You're in for a world of hurt known as CSS and cross-browser compatibility. While GWT does mask many of the differences between browsers, it certainly doesn't mask them all and you can spend hours looking for the source of a line of pixels in GWT just as you can in a normal Web Site;</li> <li>There are far fewer resources for Swing than GWT;</li> <li>You can only use certain classes on the client-side. The one that used to always cause me issues was BigDecimal;</li> <li>Your choices of widgets is far more limited. Whatever you do avoid ExtGWT like the plague. Daryls is like the Jeffrey Dahmer of Generics;</li> <li>Make sure you use GWT 1.6;</li> <li>The compile-time on GWT is just horrific;</li> <li>If you're just making client changes (ie you're not changing any service interfaces), you don't need to rebuild to see those changes. Just refresh in the hosted browser;</li> <li>For changes to serverside code that doesn't change the interfaces, make sure you have an Ant or Maven task to rebuild and redeploy your classes without doing a GWT rebuild;</li> <li>You can point the hosted browser at something other than the hosted server and debug using it; and</li> <li>Make sure your machine has lots of RAM. My IDE on some apps would get out of memory errors if less than about a gig of RAM was allocated to it and these weren't huge apps. I would really recommend 2gigs system RAM absolute minimum, preferably 3 or more.</li> </ul>
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    1. COJust out of curiosity, why would you avoid ExtGWT ?
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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