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From "Ville Virtanen (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAP5-1757) Grid does not fully adhere to volatile="true"
Date Wed, 23 Nov 2011 20:37:42 GMT
Grid does not fully adhere to volatile="true"

                 Key: TAP5-1757
                 URL: https://issues.apache.org/jira/browse/TAP5-1757
             Project: Tapestry 5
          Issue Type: Bug
          Components: tapestry-core
            Reporter: Ville Virtanen
         Attachments: grid_volatile.patch

Tapestry omits the state saving of the grid if volatile parameter is set to true. However,
grid still invokes the prepare datasource during form postback even though it is (when volatile
is true) unneccassary. It also prevents us from using grid under some ajax circumstances with

The proposed patch simply changes the parameter "volatile" of gridrows to be promoted as grid's
parameter, and the gridrows inherits it. Now that Grid has the knowledge of the parameter
it is trivial to add it to the if that checks whether the grid is inside form or not (when
adding the setupdatasourceevent to formsupport).

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