/// <summary>
/// Inserts an object into the RelatedObjectList at the specified index.
/// </summary>
/// <param name="index">The zero-based index at which an object should be inserted.</param>
/// <param name="item">The object to insert. Duplicates will be ignored.</param>
public void Insert(int index, TypeProjection item)
{
if (IsReadOnly)
{
throw new InvalidOperationException("Cannot insert into a read-only list.");
}
if (item == null)
{
throw new ArgumentNullException("Cannot insert a null value on a RelatedObjectList.");
}
if (!IsOfType(typeof(T), item.GetType()))
{
throw new InvalidOperationException("This RelatedObjectList only supports inserting objects of type " + typeof(T).Name);
}
if (!Contains(item))
{
ProjectionList.Insert(index, item.CurrentObject);
Owner.IsDirty = true;
}
}