Flex :: Update - Why Does UpdateDisplayList Stop Happening
Jul 30, 2010
Overview: The code giving me the problem is deployed here: [URL] The problem I am running into is that a certain sequence of actions (I don't fully understand how or why) is causing my calls to invalidateDisplayList to fail to produce a subsequent call to updateDisplayList. What I know is that during this period, some other visual effects will fail to occur (such as changing the width of a component or the addition of a new child).
Example: The program below draws two columns of horizontal lines. The column on the left is drawn during commitProperties, the column on the right is drawn during updateDisplayList. A certain sequence of actions can cause the right column to stop updating.
To trigger this bug: First add a new item. Now hit the start button and a bar starts filling up. If you press the add row button, the right column and the filling bar both stop growing. The left column continues unfettered. The extra component won't appear until the last line of the if statement in TEComputeRow.tick() doesn't execute for a frame. Click on the stop button to halt the execution of the block inside the if statement in TEComputeRow.tick() and everything goes back to normal.
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