asp.net-mvc 将属性分配给@Html.DropdownList
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Assign Attribute to @Html.DropdownList
提问by Rahul RJ
I want to assign some ID attribute name to my Dropdown list which is using data from the ViewBag as,
我想为我的下拉列表分配一些 ID 属性名称，该列表使用 ViewBag 中的数据，
ViewBag.Group = new SelectList(group, "GroupId", "Name");
and in the View side I have used Razor syntax for showing the Dropdown as,
在视图方面，我使用 Razor 语法将下拉列表显示为，
@Html.DropDownList("Group", "New", new { id="testID" } )
But I am getting the error on this line. Can I just assign ID of This Razor syntax? I know that the ID is generated with the Name "Playlist" But I am having 2 different dropdowns using same ViewBag. Because of that I have to assign different "ID" attribute value for them. How can it be done?
但我在这条线上收到错误。我可以只分配这个 Razor 语法的 ID 吗？我知道 ID 是用名称“播放列表”生成的，但我有 2 个使用相同 ViewBag 的不同下拉列表。因此，我必须为它们分配不同的“ID”属性值。怎么做到呢？
回答by Saravanan
You should be using something like this
你应该使用这样的东西
@Html.DropDownList("Group",null,new{@id="testID"});
because the data for the DropDownList comes from the ViewBag to name Group
因为 DropDownList 的数据来自 ViewBag 来命名 Group
回答by Aleksey Radzhabov
Try it:
尝试一下：
In controller
在控制器中
ViewBag.EmployeeId = new SelectList(db.tb_employees, "id", "last_name");
In View
在视图中
@Html.DropDownList("EmployeeId", (IEnumerable<SelectListItem>)ViewBag.EmployeeId,"Show All", new { @class = "form-control" })
