/// <summary>
/// Raises the MouseDown event.
/// </summary>
/// <param name="e">A MouseEventArgs that contains the event data.</param>
protected override void OnMouseDown(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && ShowPlusMinus)
{
if (!Focused)
{
Focus(); //?
}
CTreeNode toggleNode = null;
this.Nodes.TraverseNodes(node => node.Visible && node.Nodes.Count > 0, node =>
{
Point cursorLocation = e.Location;
cursorLocation.Offset(-AutoScrollPosition.X, -AutoScrollPosition.Y);
if (node.PlusMinus != null && node.PlusMinus.IsUnderMouse(cursorLocation))
{
toggleNode = node;
}
});
ClearSelection();
if (toggleNode != null)
{
toggleNode.Toggle();
if (SelectionMode != CTreeViewSelectionMode.None)
{
toggleNode.IsSelected = true;
}
}
}
base.OnMouseDown(e);
}
