On my latest project, I was going through several areas of the application adding toolTips to make some of the data that is clipped visible if desired. In doing so, I found out that I needed to use a combination of the different types of tips available.
Most components have a toolTip property that you can set (typically bound to some data). But the List-based components are a little different. They use dataTipField and the dataTipFunction. The “data” version of toolTips is based on the list iterating through it’s dataProvider and then adding toolTip for each row.
Note: You don’t even need to set showDataTips to true.