Hello
I have an ArrayCollection of 'Lessons' which has the following fields:
topicName, lessonName. The lessonName is unique for every row but the
topicName is not. I want to display the Lessons grouped by Topic as follows:
Topic 01
Lesson 01
Lesson 02
Topic 02
Lesson 03
Lesson 04
So far I have created a GroupingCollection2, used this as the data provider
for an AdvancedDataGrid and in its raw form this works.
Now I want to style the columns. I have been able to create a
MXAdvancedDataGridItemRenderer and set this as a
AdvancedDataGridRendererProvider for my Lessons column. By setting the Depth
to 2 the Lessons are all styled as I want.
How do I create an ItemRenderer for the group headings in the Topic column?
No matter what I try either it has no impact on the display or it renders on
every row, not just the group headings.
For example I tried this within the <mx:columns> but it renders every
column:
I have tried creating, and referencing, an AdvancedDataGridGroupItemRenderer
but this didn't influence the displayed data:
Any advice would be very welcome.
Thanks.
Chris
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