实体框架4多对象删除(RemoveAll) [英] Entity Framework 4 Multiple Object Delete(RemoveAll)
本文介绍了实体框架4多对象删除(RemoveAll)的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是在Beta 2中还是我必须自己制作?
更新:
这是我现在使用的:
public void DeleteObjects(IEnumerable< object> objects)
{
foreach(object o in objects)
{
DeleteObject(o);
}
SaveChanges();
}
解决方案
EF 4允许您执行使用(var context = new EntityFrameworkExampleEntities())
{
var count =
context.ExecuteStoreCommand(@DELETE FROM COMPANY WHERE [CompanyID] = 4);
}
有关详细信息,请参阅以下博客。
I read that the new Entity Framework will include a method to delete multiple items (Linq to SQL has DeleteAllOnSubmit()) but I can't find the function/method to do that.
Is this in Beta 2 or do I have to make my own?
UPDATE:
This is what I'm using now:
public void DeleteObjects(IEnumerable<object> objects)
{
foreach (object o in objects)
{
DeleteObject(o);
}
SaveChanges();
}
解决方案
EF 4 allows you to execute TSQL statements against an object context:
using (var context = new EntityFrameworkExampleEntities())
{
var count =
context.ExecuteStoreCommand(@"DELETE FROM Companies WHERE [CompanyID]=4");
}
See the following blog for details.
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