/// <summary>
/// Remove all items from this list
/// </summary>
/// <remark>This method can safely be called from background threads.</remark>
public override void ClearObjects()
{
if (InvokeRequired)
{
Invoke(new MethodInvoker(ClearObjects));
}
else
{
CheckStateMap.Clear();
SetObjects(new List <object>());
}
}
/// <summary>
/// Get the checkedness of an object from the model. Returning null means the
/// model does know and the value from the control will be used.
/// </summary>
/// <param name="modelObject"></param>
/// <returns></returns>
protected override CheckState?GetCheckState(object modelObject)
{
if (CheckStateGetter != null)
{
return(base.GetCheckState(modelObject));
}
CheckState state;
if (modelObject != null && CheckStateMap.TryGetValue(modelObject, out state))
{
return(state);
}
return(CheckState.Unchecked);
}
