Since 3.0
The ace:columnGroup renders a header of footer segment of an HTML table element. Rows are created from ace:row components with ace:column children. The most notable feature of using ColumnGroup to define a header or footer over Column facets, is Column rowSpan and colSpan capability.
See the ICEfaces Showcase Live Demo of this component, complete with source code.
<ace:columnGroup type="header">
<ace:row>
<ace:column colSpan="2">
Track
</ace:column>
<ace:column rowSpan="2">
Download
</ace:column>
</ace:row>
<ace:row>
<ace:column>
Artist
</ace:column>
<ace:column>
Album
</ace:column>
</ace:row>
</ace:columnGroup>
TagLib Documentation
This section covers attributes involved in the typical use-cases for this component.
The type attribute defines the segment of the table to render using this ColumnGroup, either 'header' or 'footer'.
None