Example #1
0
        protected override void OnCellPainting(DataGridViewCellPaintingEventArgs e)
        {
            if (e.RowIndex == -1 || e.ColumnIndex == -1)
            {
                return;
            }
            DataGridViewCell cell = this[e.ColumnIndex, e.RowIndex];

            if (e.RowIndex == 1 && e.ColumnIndex == 2)
            {
                e.Handled = true;
                return;
            }
            if (cell is DataGridViewCombineCell)
            {
                DataGridViewCombineCell combineCell = cell as DataGridViewCombineCell;
                Rectangle rect = GetCombinedRect(combineCell);

                DrawCombinCellBackground(combineCell, e.Graphics, rect);
                if (combineCell.Selected)
                {
                    ControlPaint.DrawFocusRectangle(e.Graphics, rect);
                }
                DrawCombinCellText(combineCell, e.Graphics, rect);
                e.Handled = true;
                return;
            }
            base.OnCellPainting(e);
        }
Example #2
0
        private void DrawCombinCellBackground(DataGridViewCombineCell combineCell, Graphics graphics, Rectangle rect)
        {
            Brush bruCellBackColor = GetCellBackColorBrush(combineCell, combineCell.Selected);
            Pen   penCellBorder    = GetCellBorderPen(combineCell);

            graphics.FillRectangle(bruCellBackColor, rect);
            graphics.DrawLine(penCellBorder, new Point(rect.Left, rect.Bottom - 1), new Point(rect.Right, rect.Bottom - 1));
            graphics.DrawLine(penCellBorder, new Point(rect.Right - 1, rect.Top), new Point(rect.Right - 1, rect.Bottom - 1));

            bruCellBackColor.Dispose();
            penCellBorder.Dispose();
        }
Example #3
0
        private void DrawCombinCellText(DataGridViewCombineCell combineCell, Graphics graphics, Rectangle rect)
        {
            if (combineCell.Value != null)
            {
                StringFormat sf = new StringFormat();
                DataGridViewContentAlignment alignment = combineCell.Style.Alignment == DataGridViewContentAlignment.NotSet
                    ? DefaultCellStyle.Alignment : combineCell.Style.Alignment;
                switch (alignment)
                {
                case DataGridViewContentAlignment.BottomCenter:
                    break;

                case DataGridViewContentAlignment.BottomLeft:
                    break;

                case DataGridViewContentAlignment.BottomRight:
                    break;

                case DataGridViewContentAlignment.MiddleCenter:
                    break;

                case DataGridViewContentAlignment.MiddleLeft:
                    break;

                case DataGridViewContentAlignment.MiddleRight:
                    break;

                case DataGridViewContentAlignment.NotSet:
                    break;

                case DataGridViewContentAlignment.TopCenter:
                    break;

                case DataGridViewContentAlignment.TopLeft:
                    break;

                case DataGridViewContentAlignment.TopRight:
                    break;

                default:
                    break;
                }
                Font  font         = combineCell.Style.Font == null ? DefaultCellStyle.Font : combineCell.Style.Font;
                Brush bruForeColor = new SolidBrush(combineCell.Style.ForeColor.IsEmpty ? DefaultCellStyle.ForeColor : combineCell.Style.ForeColor);

                graphics.DrawString(combineCell.Value.ToString(), font, bruForeColor, rect, sf);

                bruForeColor.Dispose();
            }
        }
Example #4
0
        private Rectangle GetCombinedRect(DataGridViewCombineCell combineCell)
        {
            Rectangle rect = GetCellDisplayRectangle(combineCell.ColumnIndex, combineCell.RowIndex, false);

            for (int i = 0; i < combineCell.ColSpan - 1; i++)
            {
                rect.Width += this.Columns[combineCell.ColumnIndex + i + 1].Width;
            }
            for (int i = 0; i < combineCell.RowSpan - 1; i++)
            {
                rect.Height += this.Rows[combineCell.RowIndex + i + 1].Height;
            }
            return(rect);
        }
Example #5
0
 private Brush GetCellBackColorBrush(DataGridViewCombineCell combineCell, bool selected)
 {
     if (selected)
     {
         if (!combineCell.Style.SelectionBackColor.IsEmpty)
         {
             return(new SolidBrush(combineCell.Style.SelectionBackColor));
         }
         return(new SolidBrush(DefaultCellStyle.SelectionBackColor));
     }
     else
     {
         if (!combineCell.Style.BackColor.IsEmpty)
         {
             return(new SolidBrush(combineCell.Style.BackColor));
         }
         return(new SolidBrush(DefaultCellStyle.BackColor));
     }
 }
Example #6
0
 private Pen GetCellBorderPen(DataGridViewCombineCell combineCell)
 {
     return(new Pen(this.GridColor));
 }