I've been working on getting a datagrid to validate and I am close. However, whenever I click on a cell in the datagrid, I get a runtime error in the DataGrid.as file, because my itemEditorInstance is null. However, I am providing an extended TextInput to the datagrid column the itemEditor and the itemRenderer. I've tried setting the rendererIsEditor to both true and false, but nothing changes. Has anyone seen this? Or can tell me what I'm doing wrong? I'm trying to follow examples, but obviously I'm doing something wrong.
Thanks, John

