private void cells_CollectionChanged(object sender, CollectionChangeEventArgs e)
{
if ((this._treeCell == null) && ((e.Action == CollectionChangeAction.Add) || (e.Action == CollectionChangeAction.Refresh)))
{
TreeGridCell element = null;
if (e.Element == null)
{
foreach (DataGridViewCell cell2 in base.Cells)
{
if (cell2.GetType().IsAssignableFrom(typeof(TreeGridCell)))
{
element = (TreeGridCell)cell2;
break;
}
}
}
else
{
element = e.Element as TreeGridCell;
}
if (element != null)
{
this._treeCell = element;
}
}
}
protected override void OnCellPainting(DataGridViewCellPaintingEventArgs e)
{
int left = e.CellBounds.Left;
int top = e.CellBounds.Top;
int width = e.CellBounds.Width;
int height = e.CellBounds.Height;
e.Handled = true;
e.PaintBackground(e.CellBounds, true);
if (this._drawContent)
{
e.PaintContent(e.CellBounds);
Brush brush = new SolidBrush(base.GridColor);
Pen pen = new Pen(brush);
if (!((e.RowIndex != 0) || base.ColumnHeadersVisible))
{
e.Graphics.DrawLine(pen, left, top, left + width, top);
}
if (e.RowIndex > -1)
{
if (e.ColumnIndex == this._treedGridColumnsIndex)
{
TreeGridCell cell = this.Rows[e.RowIndex].Cells[e.ColumnIndex] as TreeGridCell;
left = cell.Style.Padding.Left;
}
e.Graphics.DrawLine(pen, left, (top + height) - 1, left + width, (top + height) - 1);
}
}
}
public override object Clone()
{
TreeGridCell cell = (TreeGridCell)base.Clone();
cell.GlyphWidth = this.GlyphWidth;
cell.CalculatedLeftPadding = this.CalculatedLeftPadding;
return(cell);
}
protected internal virtual void UnSited()
{
foreach (DataGridViewCell cell2 in this.Cells)
{
TreeGridCell cell = cell2 as TreeGridCell;
if (cell != null)
{
cell.UnSited();
}
}
this._isSited = false;
}
protected internal virtual void Sited()
{
this._isSited = true;
this.childCellsCreated = true;
foreach (DataGridViewCell cell2 in this.Cells)
{
TreeGridCell cell = cell2 as TreeGridCell;
if (cell != null)
{
cell.Sited();
}
}
}