C# · 12月 23, 2021

c# – CA1001 Visual Studio 2012代码分析警告.这是什么意思?

它并不重要,但我想弄清楚它告诉我什么,这是一个合理的警告吗?有人可以用简单的术语解释这个错误吗?

CA1001 Types that own disposable fields should be disposable@H_419_6@

Implement IDisposable on ‘MemVoteManager’ because it creates members of the
following IDisposable types: ‘CongressDBEntities’. If ‘MemVoteManager’
has prevIoUsly shipped,adding new members that implement IDisposable
to this type is considered a breaking change to existing
consumers. @H_419_6@ public class MemVoteManager : AbstractDataManager,IMemVoteManager{ private CongressDBEntities context = new CongressDBEntities(); public int AddMemVote(tMemVotescore mvs) { //Insert Model context.tMemVotescores.Add(mvs); context.SaveChanges(); int newPK = mvs.MemVotescoresID; //Update funky column ID with PK as well var memVoteItem = (from m in context.tMemVotescores where m.MemVotescoresID == newPK select m).SingleOrDefault(); memVoteItem.ID = memVoteItem.MemVotescoresID; context.SaveChanges(); return newPK; }解决方法 您可以实现IDisposable,以便在消费者完成您的课程时处理上下文,但您可能最好不要让上下文成为该类的成员.只需在需要时创建它并在完成后将其丢弃: public int AddMemVote(tMemVotescore mvs){ //Insert Model using(CongressDBEntities context = new CongressDBEntities()) { context.tMemVotescores.Add(mvs); context.SaveChanges(); int newPK = mvs.MemVotescoresID; //Update funky column ID with PK as well var memVoteItem = (from m in context.tMemVotescores where m.MemVotescoresID == newPK select m).SingleOrDefault(); memVoteItem.ID = memVoteItem.MemVotescoresID; context.SaveChanges(); } return newPK;}

上下文是轻量级的,因此每次创建它们都没有太大的代价.此外,您不必担心消费者会通知您处理上下文,并且如果多次使用该类的一个实例,则内存中没有很多内置更改.@H_419_6@