/// <summary>
/// Clear all objects in the list
/// </summary>
/// <returns>
/// true if at least one object is deleted
/// </returns>
public bool Clear()
{
bool result = (graphicsList.Count > 0);
graphicsList.Clear();
return(result);
}
public void DeleteAll()
{
if (graphicsList != null && graphicsList.Count > 0)
{
graphicsList.Clear();
}
}