/// <summary>
/// Toggles node state between checked & unchecked
/// </summary>
/// <param name="node"></param>
private void ToggleNodeState(TriStateTreeNode node)
{
// no need to toggle state for non-existing node ( or non-tristatetreenode! )
if (null == node)
{
return;
}
// toggle state
CheckState nextState;
switch (node.CheckState)
{
case CheckState.Unchecked:
nextState = CheckState.Checked;
break;
default:
nextState = CheckState.Unchecked;
break;
}
// notify the treeview that an update is about to take place
BeginUpdate();
// update the node state, and dependend nodes
node.SetCheckedState(nextState);
// force a redraw
EndUpdate();
}
