/// <summary>
/// Removes a state
/// </summary>
public void RemoveState(QItemStates state)
{
this.States = QItemStatesHelper.AdjustState(this.States, state, false);
}
/// <summary>
/// Adds a state.
/// </summary>
public void AddState(QItemStates state)
{
this.States = QItemStatesHelper.AdjustState(this.States, state, true);
}
