Delete Error?

[JiangJiaqi90]

I use like this:
var repo = _unitOfWork.GetRepository();
repo.Delete(id);
_unitOfWork.SaveChanges();
But it Error:
Microsoft.EntityFrameworkCore.DbUpdateConcurrencyException:“Database operation expected to affect 1 row(s) but actually affected 0 row(s). Data may have been modified or deleted since entities were loaded.
at Repository.cs line 548 code is ：
var entity = Activator.CreateInstance();
property.SetValue(entity, id);
_dbContext.Entry(entity).State = EntityState.Deleted;

[xyting]

1. First of all, ensure database has the record with id;
2. Secondly, ensure whether the table has combining primary keys;

[JiangJiaqi90]

1. First of all, ensure database has the record with id;
2. Secondly, ensure whether the table has combining primary keys;

Yes, the two is ok. I use Mysql. It still error.
When it runs code at Repository.cs line 548 ,It's Error
var entity = Activator.CreateInstance();
property.SetValue(entity, id);
_dbContext.Entry(entity).State = EntityState.Deleted;
When it runs code at Repository.cs line 554, It's OK
var entity = _dbSet.Find(id);
if (entity != null)
{
Delete(entity);
}

[xyting]

OK, I'll test this. Right now, using Delete(entity) for bypassing this issue.

[JiangJiaqi90]

@xyting ok, thanks!

[attiqeurrehman]

@xyting any update on this?

[xyting]

@attiqeurrehman next month.

[zanderzhg]

期待

[attiqe]

any update?