Ensuring text wraps in a dataGridView column

Try setting

• .AutoSizeMode to .DisplayedCells.
• Set the AutoSizeRowsMode to AllCells.
• DataGridView.DefaultCellStyle.WrapMode to DataGridViewTriState.True

There is no need to reinvent the wheel by repainting the cell.

Instead simply:

• Set AutoSizeRowsMode property to AllCells. This allows row height to grow with any wrapped text.
• Set DataGridView.DefaultCellStyle.WrapMode to DataGridViewTriState.True to wrap text in the cells.
• Most importantly set DataGridView.AutoSizeColumnsMode to DataGridViewAutoSizeColumnsMode.None so that the columns don't resize themselves (so they remain at the user specified width).

After that the text should wrap to the next line if there is not enough space in the column.