在 asp.net mvc 2.0 中使用 Html.DropDownListFor helper 时如何更改 id 值？
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How to change id value when using Html.DropDownListFor helper in asp.net mvc 2.0?
提问by chobo2
I have a partial view that has something like this
我有一个像这样的部分观点
<%= Html.DropDownListFor(m => m.SelectedProductName, Model.ProductList, "Select a Product") %>
Now you can create a new product and edit an existing product. Both editing and creating use the same form. The create is on the main page on load up. Edit pops up in a jQuery UI model dialog and renders a new partial view.
现在您可以创建新产品并编辑现有产品。编辑和创建都使用相同的表单。加载时创建在主页上。Edit 在 jQuery UI 模型对话框中弹出并呈现一个新的局部视图。
So as far as the page is concerned I have 2 dropdown boxes with the same "id" which is bad since they should be unique. So how do I change the id? So when the edit loads it might have a id of "editSelectedProductName"?
因此，就页面而言，我有 2 个具有相同“id”的下拉框，这很糟糕，因为它们应该是唯一的。那么怎么改id呢？因此，当编辑加载时，它的 ID 可能是“editSelectedProductName”？
I tried to do this in the view model
我试图在视图模型中做到这一点
public string SelectedProductName{ get; set; }
ViewModelConstructor()
{
SelectedProductName = "EditSelectedProductName";
}
But it seems to not care and keeps using "SelectedProductName" as the product name
但它似乎并不关心并继续使用“SelectedProductName”作为产品名称
回答by Dave Swersky
I can't find the documentation at the moment, but there is an overload for DropDownListFor that will accept an object-typed collection of attributes (HtmlAttributes is the parameter name.)
我目前找不到文档，但是 DropDownListFor 有一个重载，它将接受对象类型的属性集合（HtmlAttributes 是参数名称。）
It will look something like this:
它看起来像这样：
Html.DropDownListFor(model=>model.SomeProperty, new {@id="UniqueID1234"});
You can use Intellisense to find the overload that includes HtmlAttributes.
您可以使用 Intellisense 查找包含 HtmlAttributes 的重载。
回答by Fernando Teles
You can use a hardcoded jQuery:
您可以使用硬编码的 jQuery：
$('select#[id of your select box]').attr('id', '[id that you want]');
