Thanks for the answer, in fact, that was exactly what I needed, latter I realized that the wrap thing is working because the other cells where cutting the content and putting it into separate lines inside the cell, but as you say, it works only with words... I deal whit it by cutting the word before sending it to the cells and I works, at least for me...

Thanks a lot!

Having pre-determined the column width for each cell (each cell being the same size), and set the relevant row size manually elsewhere I am using this function while iterating through each cell to modify the text:

        private void AutoWrapCellContents(ref UltraGridCell cell)
        {
            // Modify the label, by inserting a white space to wrap the label down if necessary
            int fontWidth = 9;
            int lineBreaks = (cell.Value.ToString().Length * fontWidth) / (cell.ColSpan * _DataColumnWidth);
            int charCountPerLine = (cell.ColSpan * _DataColumnWidth) / fontWidth;

            string newLabel = "";
            int charCount = 0;

            if (lineBreaks > 0)
            {
                foreach (char nextChar in cell.Value.ToString())
                {
                    charCount++;
                    newLabel += nextChar;

                    if (charCount == charCountPerLine)
                    {
                        newLabel += " ";
                        charCount = 0;
                    }
                }

                cell.Value = newLabel;
            }