Mark Saunders created FLEX-33990:
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Summary: RTE in AdvancedDataGridBase drawItem
Key: FLEX-33990
URL: https://issues.apache.org/jira/browse/FLEX-33990
Project: Apache Flex
Issue Type: Bug
Components: ADG:Display
Affects Versions: Apache Flex 4.11.0
Environment: Windows 7, Flashbuilder 4.7 (probably irrelevant)
Reporter: Mark Saunders
Priority: Minor
Fix For: Adobe Flex SDK Next
The method drawItem() (line 897 of AdvancedDataGridBase) was modified in 4.11.
Line 916 was added: r.validateDisplayList();
The issue is that r is null. in the for loop, n is the length of visible
columns, while r is derived from listitems[row][i]. the listItems inner array
[i] only contains cusom itemrenderers and is therefore a subset of the
optimumColumns (visible columns). I think an if(r) check will fix the issue.
var n:int = optimumColumns.length;
for (var i:int = 0; i < n; i++)
{
var r:IListItemRenderer = listItems[rowIndex][i];
r.validateDisplayList();
updateDisplayOfItemRenderer(r);
}
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