检查这些SO文章后：cascade-delete-in-entity-framework，ef6-1-soft-delete-with-cascade-delete，cascading-soft-delete，method-for-cascading-soft-deletes-in-parent-child-relationships和reasons-for-cascading-soft-deletes，但未找到解决方案......
我有SoftDelete为我的实体模型工作。我在上下文中覆盖了CREATE TABLE #TblFinal
(F_ID INT IDENTITY(1,1), F_VAL NVARCHAR(20), F_SEV_ID INT, F_U_KEY NVARCHAR(200), F_COUNTER INT DEFAULT(1), F_IS_CLEAR BIT DEFAULT(0))
CREATE TABLE #TblData
(D_ID INT, D_VAL NVARCHAR(20), D_SEV_ID INT, D_U_KEY NVARCHAR(200))
INSERT INTO #TblData VALUES(1, 'test 1', 2, '1:100002135::::15124:9334'), (2, 'test 1', 2, '1:100002135::::15124:9334'),
(3, 'test', -11, '1:100002135::::15124:9334'), (4, 'test 1', 2, '1:100002135::::15124:9334'), (5, 'test 1', 2, '1:1024:9334')
DECLARE @D_ID INT
DECLARE @D_SEV_ID INT
DECLARE @D_U_KEY NVARCHAR(200)
DECLARE A_CUR CURSOR FOR
SELECT D_ID, D_SEV_ID, D_U_KEY FROM #TblData ORDER BY D_ID ASC
OPEN A_CUR
FETCH NEXT FROM A_CUR INTO @D_ID, @D_SEV_ID, @D_U_KEY
WHILE @@FETCH_STATUS = 0
BEGIN
IF EXISTS(SELECT 1 FROM #TblFinal(NOLOCK) WHERE F_U_KEY = @D_U_KEY AND F_IS_CLEAR = 0 AND F_SEV_ID <> -11)
BEGIN
DECLARE @FId INT
SELECT @FId = F_ID FROM #TblFinal(NOLOCK) WHERE F_U_KEY = @D_U_KEY AND F_IS_CLEAR = 0 AND F_SEV_ID <> -11
--IF @D_SEV_ID != -11
IF (@D_SEV_ID <> -11)
BEGIN
UPDATE #TblFinal
SET F_COUNTER = F_COUNTER + 1 WHERE F_ID = @FId
END
--IF @D_SEV_ID = -11
ELSE IF(@D_SEV_ID = -11)
BEGIN
INSERT INTO #TblFinal (F_VAL, F_SEV_ID, F_U_KEY)
SELECT D_VAL, D_SEV_ID, D_U_KEY FROM #TblData(NOLOCK) WHERE D_ID = @D_ID
UPDATE #TblFinal
SET F_IS_CLEAR = 1 WHERE F_ID = @FId
END
ELSE
BEGIN
PRINT 'DO NOTHING'
END
END
ELSE
BEGIN
INSERT INTO #TblFinal (F_VAL, F_SEV_ID, F_U_KEY)
SELECT D_VAL, D_SEV_ID, D_U_KEY FROM #TblData(NOLOCK) WHERE D_ID = @D_ID
END
FETCH NEXT FROM A_CUR INTO @D_ID, @D_SEV_ID, @D_U_KEY
END
CLOSE A_CUR
DEALLOCATE A_CUR
--SELECT * FROM #TblData
SELECT * FROM #TblFinal
DROP TABLE #TblData
DROP TABLE #TblFinal
：
SaveChanges()我为我的孩子实体设置了CascadeOnDelete。因为我覆盖了已删除的 public override int SaveChanges()
{
ChangeTracker.DetectChanges();
foreach (DbEntityEntry<ISoftDeletable> entity in ChangeTracker.Entries<ISoftDeletable>())
{
if (entity.State == EntityState.Deleted)
{
entity.State = EntityState.Modified;
entity.Entity.IsDeleted = true;
}
}
return base.SaveChanges();
}
，所以它不会级联。有人知道将导航属性放在EntityState循环中的方法吗？还是处理SoftDeletes的更好方法？
提前谢谢你，
答案 0 :(得分：2)
阅读此SO文章entity-framework-6-code-first-cascade-delete ...
我意识到，我抓住并删除了我的实体：
var entity = context.Parent.FirstOrDefault();
context.Parent.Remove(entity);
当我需要像这样抓取整个图表时：
var entity = context.Parent.Include("Children").FirstOrDefault();
context.Parent.Remove(entity);
感谢您输入@Maarten