StyleNew Property (RowCol)
Gets or sets a custom
CellStyle associated with this row or column, creating a new style if necessary.
The code below sets a column's background color to red.
// get the style associated with column 1 (create a new one if necessary)
CellStyle cs = _flex.Cols[1].StyleNew.BackColor;
// set the new style's back color to red
cs.BackColor = Color.Red;