/// <summary>
/// Links two selections together based on the <paramref name="linkType"/>.
/// </summary>
/// <param name="linkType">
/// The link type.
/// </param>
/// <param name="sourceSelection">
/// The source selection.
/// </param>
/// <param name="targetSelection">
/// The target selection.
/// </param>
/// <typeparam name="TDestEntity">
/// The type of selection to link.
/// </typeparam>
/// <exception cref="ArgumentOutOfRangeException">
/// <paramref name="linkType"/> is not one of the values of <see cref="SelectionLinkType"/>.
/// </exception>
private static void LinkSelection <TDestEntity>(
SelectionLinkType linkType,
EntitySet <TDestEntity> sourceSelection,
EntitySet <TDestEntity> targetSelection)
where TDestEntity : class, new()
{
switch (linkType)
{
case SelectionLinkType.Union:
sourceSelection.Union(targetSelection);
break;
case SelectionLinkType.Intersection:
sourceSelection.Intersect(targetSelection);
break;
case SelectionLinkType.Exception:
sourceSelection.Except(targetSelection);
break;
default:
throw new ArgumentOutOfRangeException(nameof(linkType));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="LinkedSelection"/> class.
/// </summary>
/// <param name="selection">
/// The parent selection.
/// </param>
/// <param name="linkType">
/// The link type.
/// </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="selection"/> is null.
/// </exception>
public LinkedSelection([NotNull] IEntitySet selection, SelectionLinkType linkType)
{
this.Selection = selection ?? throw new ArgumentNullException(nameof(selection));
this.LinkType = linkType;
}
