private void CellsCollectionChanged(object sender, CollectionChangeEventArgs e)
{
// Exit if there already is a tree cell for this row
if (_treeCell != null)
{
return;
}
if (e.Action == CollectionChangeAction.Add || e.Action == CollectionChangeAction.Refresh)
{
TreeDataGridViewTextBoxCell treeCell = null;
if (e.Element == null)
{
foreach (DataGridViewCell cell in base.Cells)
{
if (cell.GetType().IsSubclassOf(typeof(TreeDataGridViewTextBoxCell)) ||
cell.GetType().Name == nameof(TreeDataGridViewTextBoxCell))
{
treeCell = (TreeDataGridViewTextBoxCell)cell;
break;
}
}
}
else
{
treeCell = e.Element as TreeDataGridViewTextBoxCell;
}
if (treeCell != null)
{
_treeCell = treeCell;
}
}
}
public override object Clone()
{
TreeDataGridViewTextBoxCell c = (TreeDataGridViewTextBoxCell)base.Clone();
c._glyphWidth = _glyphWidth;
c._calculatedLeftPadding = _calculatedLeftPadding;
return(c);
}