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Ext_GWT: Image Gallery box using a ListView

 
Greenhorn
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Eclipse IDE Tomcat Server Linux
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I'm trying to build an image gallery, just like this "Chart Gallery" you can see in the example provided in this link http://www.sencha.com/examples/pages/charts/gallery.html.
In tihs example, I can see that the gallery is implemented with a ListView containing a ListStore, and that ListStore cointains some kind of ModelData.


And that GalleryChartModel is implemented this way


But I can't understand the inherent logic of this code: there are 3 properties in the model, how do the framework know how to interpret this properties? I mean: In this last class, there are two propperties (path and name) that seems to be used for rendering but i dont understand how.

There's another native method (something I don't understand) that is implemented tis way:


We can see "name", "path" and "shortName" words appearing here, but I don't know what this means.
Can anyone give me a clue?
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