public static bool IsConceptualNullKeyChanged(EntityKey conceptualNullKey, EntityKey realKey)
{
if (realKey == (EntityKey)null)
{
return(true);
}
return(!EntityKey.InternalEquals(conceptualNullKey, realKey, false));
}
/// <summary>
/// Checks if the Real Key represents different FK values
/// than those present when the Conceptual Null was created
/// </summary>
/// <param name="conceptualNullKey">The key representing the Conceptual Null</param>
/// <param name="realKey">The key to be checked</param>
/// <returns>True if the values are different, false otherwise</returns>
public static bool IsConceptualNullKeyChanged(EntityKey conceptualNullKey, EntityKey realKey)
{
Debug.Assert(IsConceptualNullKey(conceptualNullKey), "The key supplied is not a null key");
if (realKey == null)
{
return(true);
}
return(!EntityKey.InternalEquals(conceptualNullKey, realKey, compareEntitySets: false));
}