paint a userdefined datagridviewcolumn

Hi experts

I created a datagridviewcolumn which contains a listview. But I'm struggling with displaying the whole thing.
As I understand it, every cell shares the same listview, so I can't just display the listview, right?

I think I need the Paint event of my custom cell to draw my content but I have no idea how.

thanks

public class DataGridViewListViewColumn : DataGridViewColumn
    {
        public DataGridViewListViewColumn()
            : base(new DataGridViewListViewCell())
        {
            
        }

public class DataGridViewListViewCell : DataGridViewTextBoxCell
    {
        public DataGridViewListViewCell()
            : base()
        {

        }

        public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
        {
            base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle);
            DataGridViewListView ctl = new DataGridViewListView();
            ctl.Show();
        }

        protected override void Paint(System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
        {
            base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, "", errorText, cellStyle, advancedBorderStyle, paintParts);
        }

        public override Type EditType
        {
            get
            {
                return typeof(DataGridViewListView);
            }
        }

        public override Type ValueType
        {
            get
            {
                return typeof(Int32);
            }
            set
            {
                base.ValueType = value;
            }
        }
    }

        public override DataGridViewCell CellTemplate
        {
            get
            {
                return base.CellTemplate;
            }
            set
            {
                if(value != null &&
                    !value.GetType().IsAssignableFrom(typeof(DataGridViewListViewCell)))
                {
                    throw new InvalidCastException("Must be a CalendarCell");
                }

                base.CellTemplate = value;
            }
        }
    }

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