This method will return true if a column has been hidden using the "hide columns" feature, or false if not. Column hiding is enabled on grids via the Hide Columns Option.
- columnid - the column ID of the column to check, beginning with 0 for the first column, 1 for the 2nd, etc. Before the user moves any columns, column 0 would be the first column. After the user moves columns, the originally first column still has a columnId of 0, even if that column is no longer the first column.
- Returns true if the column is hidden, returns false otherwise.
This method is available in Profound UI releases later than Version 6 Fix Pack 2.1