/// <summary>
/// Returns a copy of the column.
/// </summary>
/// <returns></returns>
public override object Clone()
{
ComboTreeBoxColumn that = (ComboTreeBoxColumn)base.Clone();
that.Nodes.AddRange(this.Nodes);
that.UseNodeNamesForPath = this.UseNodeNamesForPath;
that.PathSeparator = this.PathSeparator;
that.ShowPath = this.ShowPath;
that.Images = this.Images;
that.ImageIndex = this.ImageIndex;
that.ImageKey = this.ImageKey;
that.ExpandedImageIndex = this.ExpandedImageIndex;
that.ExpandedImageKey = this.ExpandedImageKey;
return(that);
}
/// <summary>
/// Paints the cell.
/// </summary>
/// <param name="graphics"></param>
/// <param name="clipBounds"></param>
/// <param name="cellBounds"></param>
/// <param name="rowIndex"></param>
/// <param name="cellState"></param>
/// <param name="value"></param>
/// <param name="formattedValue"></param>
/// <param name="errorText"></param>
/// <param name="cellStyle"></param>
/// <param name="advancedBorderStyle"></param>
/// <param name="paintParts"></param>
protected override void Paint(Graphics graphics, Rectangle clipBounds, 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, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
BeforePaintContent(graphics, cellBounds, cellState, cellStyle, paintParts);
if (paintParts.HasFlag(DataGridViewPaintParts.ContentForeground))
{
ComboTreeBoxColumn column = (ComboTreeBoxColumn)OwningColumn;
ComboTreeNode node = Nodes.ParsePath(Convert.ToString(formattedValue), column.PathSeparator, column.UseNodeNamesForPath);
string displayValue;
if (column.ShowPath)
{
displayValue = Convert.ToString(formattedValue);
}
else
{
displayValue = (node != null) ? node.Text : String.Empty;
}
Image img = ComboTreeBox.GetNodeImage(node, column.Images, column.ImageIndex, column.ImageKey, column.ExpandedImageIndex, column.ExpandedImageKey);
Rectangle contentBounds = cellBounds;
contentBounds.Width -= 17;
TextFormatFlags flags = ComboTreeBox.TEXT_FORMAT_FLAGS | TextFormatFlags.PreserveGraphicsClipping;
Rectangle imgBounds = (img == null)
? new Rectangle(Point.Add(contentBounds.Location, new Size(1, 0)), Size.Empty)
: new Rectangle(contentBounds.Left + 4, contentBounds.Top + (contentBounds.Height / 2 - img.Height / 2), img.Width, img.Height);
Rectangle txtBounds = new Rectangle(imgBounds.Right, contentBounds.Top, contentBounds.Right - imgBounds.Right - 3, contentBounds.Height);
if (img != null)
{
graphics.DrawImage(img, imgBounds);
}
TextRenderer.DrawText(graphics, displayValue, cellStyle.Font, txtBounds, cellStyle.ForeColor, flags);
}
AfterPaintContent(graphics, clipBounds, cellBounds, rowIndex, cellStyle, advancedBorderStyle, paintParts);
}
/// <summary>
/// Initialises the editing control for the cell.
/// </summary>
/// <param name="rowIndex"></param>
/// <param name="initialFormattedValue"></param>
/// <param name="dataGridViewCellStyle"></param>
public override void InitializeEditingControl(int rowIndex, object initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
{
base.InitializeEditingControl(rowIndex, initialFormattedValue, dataGridViewCellStyle);
ComboTreeBoxEditingControl control = DataGridView.EditingControl as ComboTreeBoxEditingControl;
ComboTreeBoxColumn column = (ComboTreeBoxColumn)OwningColumn;
if (control != null)
{
control.BeginUpdate();
control.Nodes.Clear();
control.ImageIndex = column.ImageIndex;
control.ImageKey = column.ImageKey;
control.ExpandedImageIndex = column.ExpandedImageIndex;
control.ExpandedImageKey = column.ExpandedImageKey;
control.Images = column.Images;
control.Nodes.AddRange(Nodes);
control.Path = Convert.ToString(initialFormattedValue);
control.EndUpdate();
}
}
