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I would like to see a feature used by a lot of modern sites: the leftmost column of some list is a set of checkboxes, with (un)check all box in header. For example like google mail does at gmail.com.

Right now to achieve the similar effect we need add a new field to dataset and use checkbox editor. But DataSet mechanics (Edit, Post, etc) makes it very inconvinient, especially when Post event is tied to DB updates.

 

Screenshot can be found here

http://stackoverflow.com/questions/18340195/ext-js-4-2-grid-automatically-check-selection-model-checkbox

 

I also stumbled on discussion about this being implemented already on Sencha forum

http://www.sencha.com/forum/showthread.php?259256-check-box-column-view-in-grid-Panel

 

Not sure how to return a selection though, maybe a list of RecNo.

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