在处理剃刀HTML.DropDownList MVC onchange事件 [英] Handling onchange event in HTML.DropDownList Razor MVC

问题描述

我在处理像这样一个选择的值通过简单的HTML的的onchange 事件：

I'm handling an onchange event with a selected value by simple HTML like this:

<select onchange="location = this.value;">
         <option value="/product/categoryByPage?PageSize=15" selected="selected">15</option>
         <option value="/product/categoryByPage?PageSize=30" selected="selected">30</option>
         <option value="/product/categoryByPage?PageSize=50" selected="selected">50</option>
</select>

做这件事是这样的：

Doing it like this:

List<SelectListItem> items = new List<SelectListItem>();
string[] itemArray = {"15","30","50"};

for (int i = 0; i < itemArray.Count(); i++)
{
    items.Add(new SelectListItem 
    { 
        Text = itemArray[i], 
        Value = "/product/categoryByPage?pageSize=" + itemArray[i]
    });
}

ViewBag.CategoryID = items;
@Html.DropDownList("CategoryID")

我如何处理的onchange 与 @ Html.DropDownList（）

推荐答案

您可以使用的DropDownList 方法的另一个重载。挑选一个你需要的，并传递
与HTML中的对象属性。

Description

You can use another overload of the DropDownList method. Pick the one you need and pass in a object with your html attributes.

@Html.DropDownList("CategoryID", null, new { @onchange="location = this.value;" })

更多信息

• MSDN - SelectExtensions.DropDownList方法



More Information

• MSDN - SelectExtensions.DropDownList Method

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