Applies To:

ListView

Description

This property is used to specify colours and spacing elements for a ListView that is displaying its Items in groupings (see ItemGroups).

Note that this feature only applies if Native Look and Feel is enabled.

ItemGroupMetrics is a 3-item nested vector as follows:

[1]	Text Colours	2-element vector of 3 element RGB values that specifies the colour of the group caption and group footer respectively.
[2]	Spacing	4-element integer vector that specifies the top, left, bottom and right spacing around each grouping in pixels
[3]	Border	Colours4-element vector of 3 element RGB values that specifies the colours for the top, left, bottom and right borders (not yet implemented).

The following expression, coupled with the code shown in the SetGroups example, causes the items to be displayed as shown below.

      F.L.ItemGroupMetrics[1 2]←(2⍴⊂255 0 0)(10 100 0 10)