/// <summary>
/// Add an element to an existing group
/// </summary>
/// <param name="Group">Group to add an element to</param>
/// <param name="Element">Element to add</param>
/// <returns></returns>
public static Group AddElement(Group Group, Element Element)
{
Group newGroup = new Group();
newGroup.Name = Group.Name;
List<Element> newGroupElements = Group.GroupElements;
//check that the element doesn't already exist in the group
if (!Group.GroupElements.Contains(Element))
{
newGroupElements.Add(Element);
}
else
{
throw new Exception("This element already exists in the group");
}
newGroup.GroupElements = newGroupElements;
return newGroup;
}
/// <summary>
/// Remove an element from a group
/// </summary>
/// <param name="Group">Group to remove element from</param>
/// <param name="Element">Element to remove</param>
/// <returns></returns>
public static Group RemoveElement(Group Group, Element Element)
{
Group newGroup = new Group();
newGroup.Name = Group.Name;
List<Element> newGroupElements = Group.GroupElements;
if (!Group.GroupElements.Contains(Element))
{
throw new Exception("This element is not in the group");
}
else
{
newGroupElements.Remove(Element);
}
newGroup.GroupElements = newGroupElements;
return newGroup;
}
