这是我的控制器
[HttpPost]
public ActionResult Delete(IEnumerable<int> idDelete)
{
foreach(var item in idDelete)
{
var delete = db.ExamPolicies.SingleOrDefault(s => s.ExamPolicyID == item);
db.ExamPolicies.Attach(delete);
db.ExamPolicies.Remove(delete);
}
db.SaveChanges();
return RedirectToAction("Display");
}
这是我的输入
@using (Html.BeginForm("Delete", "ExamPolicy", FormMethod.Post))
{
<div class="btn-group">
<input type="submit" value="Delete All" />
</div>
}
这是我的复选框
<input type="checkbox" class="checkboxes" value="@item.ExamPolicyID" name="ExamPolicyIDs"/>
我不知道为什么我的代码错了?拜托,帮帮我
答案 0 :(得分:0)
更改您的删除操作,如下所示:
[HttpPost]
public ActionResult Delete(IEnumerable<int> ExamPolicyIDs)
{
foreach (var item in ExamPolicyIDs)
{
var delete = db.ExamPolicies.FirstOrDefault(s => s.ExamPolicyID == item);
if (delete != null)
{
db.ExamPolicies.Remove(delete);
}
}
db.SaveChanges();
return RedirectToAction("Display");
}