public void Toggle(Enumerations.CheckBoxState fromState)
{
switch (fromState)
{
case Enumerations.CheckBoxState.Unchecked:
{
this.State = Enumerations.CheckBoxState.Checked;
break;
}
case Enumerations.CheckBoxState.Checked:
case Enumerations.CheckBoxState.Indeterminate:
default:
{
this.State = Enumerations.CheckBoxState.Unchecked;
break;
}
}
this.UpdateStateOfRelatedNodes();
}
private void UpdateParentNodeState(bool isStartingPoint)
{
ThreeStateTreeNode parent = this.Parent as ThreeStateTreeNode;
if (parent != null)
{
Enumerations.CheckBoxState state = Enumerations.CheckBoxState.Unchecked;
if (!isStartingPoint && (this.State == Enumerations.CheckBoxState.Indeterminate))
{
state = Enumerations.CheckBoxState.Indeterminate;
}
else
{
state = this.SiblingsState;
}
if (parent.State != state)
{
parent.State = state;
parent.Checked = (state != Enumerations.CheckBoxState.Unchecked);
parent.UpdateParentNodeState(false);
}
}
}
