我以前从未尝试过这个,所以希望有人能向我展示正确的实现方法来覆盖 Except() 和 GetHashCode() 方法。
我正在尝试修改类,以便可以使用 LINQ Except() 方法。
public class RecommendationDTO{public Guid RecommendationId { get; set; }
public Guid ProfileId { get; set; }
public Guid ReferenceId { get; set; }
public int TypeId { get; set; }
public IList<TagDTO> Tags { get; set; }
public DateTime CreatedOn { get; set; }
public DateTime? ModifiedOn { get; set; }
public bool IsActive { get; set; }
public object ReferencedObject { get; set; }
public bool IsSystemRecommendation { get; set; }
public int VisibilityScore { get; set; }
public RecommendationDTO()
{
}
public RecommendationDTO(Guid recommendationid,
Guid profileid,
Guid referenceid,
int typeid,
IList<TagDTO> tags,
DateTime createdon,
DateTime modifiedon,
bool isactive,
object referencedobject)
{
RecommendationId = recommendationid;
ProfileId = profileid;
ReferenceId = referenceid;
TypeId = typeid;
Tags = tags;
CreatedOn = createdon;
ModifiedOn = modifiedon;
ReferencedObject = referencedobject;
IsActive = isactive;
}
public override bool Equals(System.Object obj)
{
// If parameter is null return false.
if (obj == null)
{
return false;
}
// If parameter cannot be cast to Point return false.
RecommendationDTO p = obj as RecommendationDTO;
if ((System.Object)p == null)
{
return false;
}
// Return true if the fields match:
return (ReferenceId == p.ReferenceId);// && (y == p.y);
}
public bool Equals(RecommendationDTO p)
{
// If parameter is null return false:
if ((object)p == null)
{
return false;
}
// Return true if the fields match:
return (ReferenceId == p.ReferenceId);// && (y == p.y);
}
//public override int GetHashCode()
//{
// return ReferenceId;// ^ y;
//}}
我已经查看了 http://msdn.microsoft.com/en-us/library/ms173147.aspx,但我希望有人能够在我的示例中展示给我。任何帮助都将不胜感激。谢谢。
==
和Equals()
保持同步。 - H H