[Mono-bugs] [Bug 614848] The DataGridViewComboBoxColumn column in DataGridView Control does not work as expected

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=614848

http://bugzilla.novell.com/show_bug.cgi?id=614848#c1


--- Comment #1 from Hajime KObayashi <hajimek at yummy.net> 2010-06-16 20:40:57 UTC ---
the following code copied from Microsoft site might be a workaround to this
problem



private void datagridview1_CellPainting(object sender,
DataGridViewCellPaintingEventArgs e)
        {
            //MONO : refer to Bug 614848 on
https://bugzilla.novell.com/show_bug.cgi?id=614848 
            //       reported by me
            if (e.ColumnIndex < 0 || e.RowIndex < 0) return;
            if (e.ColumnIndex != 1) return;
            if (!LicenseEditor.CPlatformInfo.RunningOnMono) return;

            Rectangle newRect = new Rectangle(e.CellBounds.X + 1,
                e.CellBounds.Y + 1, e.CellBounds.Width - 4,
                e.CellBounds.Height - 4);

            using (
                Brush gridBrush = new
SolidBrush(((DataGridView)sender).GridColor),
                backColorBrush = new SolidBrush(e.CellStyle.BackColor))
            {
                using (Pen gridLinePen = new Pen(gridBrush))
                {
                    // Erase the cell.
                    e.Graphics.FillRectangle(backColorBrush, e.CellBounds);

                    // Draw the grid lines (only the right and bottom lines;
                    // DataGridView takes care of the others).
                    e.Graphics.DrawLine(gridLinePen, e.CellBounds.Left,
                        e.CellBounds.Bottom - 1, e.CellBounds.Right - 1,
                        e.CellBounds.Bottom - 1);
                    e.Graphics.DrawLine(gridLinePen, e.CellBounds.Right - 1,
                        e.CellBounds.Top, e.CellBounds.Right - 1,
                        e.CellBounds.Bottom);

                    // Draw the inset highlight box.
                    //e.Graphics.DrawRectangle(Pens.Blue, newRect);

                    // Draw the text content of the cell, ignoring alignment.
                    if (e.Value != null)
                    {
                        e.Graphics.DrawString((String)e.Value,
e.CellStyle.Font,
                            Brushes.Black, e.CellBounds.X + 2,
                            e.CellBounds.Y + 2, StringFormat.GenericDefault);
                    }
                    e.Handled = true;
                }
            }
        }

    }

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