[英]How can i make Entity Framework TPT inheritance to build one table per each type
[英]Entity framework for each loop one per one
我在类中有需要将两个表重新映射到 dto 的方法,但是当我遍历表时,它会为我提供整个表而不是每个循环一个记录,有没有办法告诉返回的表为每个 for 循环提供一个项目? 并异步执行? 当前代码如下所示:
var simpleDtoList = new List<DtoObject>();
using (var db = new SimpleContext())
{
await foreach (SimpleA A in db.SimpleATable)
{
using (var database = new SimpleContext())
{
await foreach (SimpleB B in database.SimpleBTable)
{
var DtoObject = new DtoObject();
DtoObject.Id = A.Id;
DtoObject.SimpleA = A.Name;
DtoObject.SimpleB = B.Name;
simpleDtoList.Add(DtoObject);
}
}
}
}
return simpleDtoList;
我找到了设置 Where equals index of simpleDtoList 的解决方案,但我必须删除等待,有没有办法保留等待代码?
像下面这样的东西有帮助吗?
await foreach (SimpleB B in (from b in db.Blogs where something == "somthing").ToListAsync()))
{
var DtoObject = new DtoObject();
DtoObject.Id = A.Id;
DtoObject.SimpleA = A.Name;
DtoObject.SimpleB = B.Name;
simpleDtoList.Add(DtoObject);
}
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