Dear all, I'm trying to implement an Ajax button for showing / hiding some columns of a DefaultDataTable based on a Boolean associated with a custom session. Currently I have implemented an AttributeModifier that sets the style to "display:none" on the hidden columns.
This is working fine for the table content (data rows) where I am adding this AttributeModifier to the cellItem, but not for the column headers. The function getHeader() returns a Label that I can hide by adding the same AttributeModifier, but I do not know how to get to the <TH> element itself. Effectively, I can hide the headers' label but not the header. Any suggestions, please? TIA & best regards, Erich
