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From "Judah Frangipane (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLEX-35028) Error in DataGrid getHeaderRendererAt(-1)
Date Fri, 05 Feb 2016 07:33:39 GMT
Judah Frangipane created FLEX-35028:

             Summary: Error in DataGrid getHeaderRendererAt(-1)
                 Key: FLEX-35028
                 URL: https://issues.apache.org/jira/browse/FLEX-35028
             Project: Apache Flex
          Issue Type: Bug
          Components: Spark: DataGrid
            Reporter: Judah Frangipane

When using a DataGrid if you click the header and the column index is -1 then an error is

    public function getHeaderRendererAt(columnIndex:int):IGridItemRenderer
        // TODO: fix this: do the work here, rather than the layout            
		const view:Group = getColumnHeaderViewAtIndex(columnIndex);	
        return GridHeaderViewLayout(view.layout).getHeaderRendererAt(columnIndex);

view is null

Solution may be to check if index is not -1 and return null if it is

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