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Regarding CheckBoxSelectionModel usage in EXT JS

 
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Posts: 62
Flex Java
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Hi All,

I am a newbie with EXTJS. Kindly forgive if my doubt is silly. I went through Sencha.com; but was not able to catch up much. Hence this post.

I am using a CheckBoxSelectionModel in my grid for a popup screen. In the grid I have some Categories and each category has it's own list of items. When I invoke the screen I pass some ids and all the items with the ids remain selected and non-editable. Now I can select the remaining items. My problem is that I have to make it work in such a way that when I select a category all its items should get selected. I tried it using listeners; but it does not work. Which is the event that I should listen to? Is it afterrowselect? Or some other event? Kindly help on how to implement this. Each of my item in the grid has a catgoryId in its record.

Thanks a zillion in advance.
 
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