/// <summary>
/// determines if edmMember is part of the key of it's defining type.
/// </summary>
/// <param name="member"></param>
/// <returns></returns>
internal static bool IsPartOfKey(EdmMember edmMember)
{
if (Helper.IsRelationshipEndMember(edmMember))
{
return(((RelationshipType)edmMember.DeclaringType).KeyMembers.Contains(edmMember));
}
if (!Helper.IsEdmProperty(edmMember))
{
return(false);
}
if (Helper.IsEntityTypeBase(edmMember.DeclaringType))
{
return(((EntityTypeBase)edmMember.DeclaringType).KeyMembers.Contains(edmMember));
}
return(false);
}
/// <summary>
/// Validates a EdmMember object to determine if it can be added to this type's
/// Members collection. If this method returns without throwing, it is assumed
/// the member is valid.
/// </summary>
/// <param name="member">The member to validate</param>
/// <exception cref="System.ArgumentException">Thrown if the member is not a EdmProperty</exception>
internal override void ValidateMemberForAdd(EdmMember member)
{
Debug.Assert(Helper.IsEdmProperty(member) || Helper.IsNavigationProperty(member),
"Only members of type Property may be added to Entity types.");
}