// Collapse the children recursively but don't redraw.
private void CollapseInternal()
{
bool selected = false;
// Recursively collapse, if a child was selected, mark to select the parent.
if (childCount > 0)
{
for (int i = 0; i < childCount; i++)
{
if (treeView.SelectedNode == children[i])
selected = true;
children[i].CollapseInternal();
}
}
// Do the events.
TreeViewExCancelEventArgs eventArgs = new TreeViewExCancelEventArgs(this, false, TreeViewExAction.Collapse);
treeView.OnBeforeCollapse(eventArgs);
if (!eventArgs.Cancel)
{
treeView.OnAfterCollapse(new TreeViewExEventArgs(this));
// The node is now collapsed.
expanded = false;
}
if (selected)
{
treeView.SelectedNode = this;
}
}