如何刪除尚未連接的實體？

Question

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我收到以下錯誤：無法刪除未連接的實體。

Answer 1

[AcceptVerbs(HttpVerbs.Get)] 
public ActionResult Delete(int id) 
{ 
    CustomerDataContext cs = new CustomerDataContext(); 
    var query = cs.Customers.Where(m => m.CustId == id).Select(m => m); 
    foreach (var q in query) 
    { 
     cs.Customers.DeleteOnSubmit(q); 
    } 

    cs.SubmitChanges(); 
    return View("Index"); 
}