Are you saying there isn't an itemRollOut when going from row to row in the
Are you using custom renderers? If so, make sure you don't change the name
Otherwise, try to make a simple test case and post it.
I tried a few different things out and it seems that the only way to get that functionality to work properly is to use the default top and bottom padding settings for the DataGrid; I had them set to zero. I am using custom renderers, which I designed to work visually with the zero padding settings, but I'll have to re-design them, since the sacrifice in the UI functionality is unacceptable. I figured it out while switching to the default itemRenderers, however the problem and the "solution" are static constants, if you will. (...adjusts pocket protector...)