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为什么这部法律改变了我所需要的地点。
原标题:Why does this code changes location as I need it to

我有一个不容置疑的问题。 我已撰写了一部法典,以修改以下案文:<代码><select> sonchange。 类似:

<% Html.BeginForm(); %>
<label for="id" >Automat:</label>
<%= Html.DropDownList("id", Model as SelectList, new { @onchange = "window.location.href = document.getElementById( id ).options[document.getElementById( id ).selectedIndex].value;" })%>
<% Html.EndForm(); %>

选定的数值是数字(即1,2,......)。

简言之,我得以从URL中改变选定的选择。

http://localhost:58296/Content/ViewContent/2

纽约总部

http://localhost:58296/Content/ViewContent/3

.. And I really don t know why it works. Can anyone explain that 纽约总部me please?

最佳回答

降幅清单中选定的指数是清单中项目的0基指数。

<select>
  <option>Some Option 1</option> <!-- I have index 0 -->
  <option>Some Option 2</option> <!-- I have index 1 -->
  <option>Some Option 3</option> <!-- I have index 2 -->
</select>

你在字面上讲到选定清单,“如果你改变,将选定的数值指数 gr,并将URL的最后部分改为该指数”。

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