如何将选定的值转换为字符串？ [英] how to get the selected value into a string?

问题描述

这是我的ASP代码

Here is my ASP code

<select id="Manufacturer" name="Manufacturer" <asp:Literal ID='litManfDis' runat='server' />
                  Manufacturer:  <option>SELECT MANUFACTURER</option>
                    <asp:Literal ID="litManf" runat="server" />
                </select>

以下是我填写选择选项的方法。

Here is how I fill my select options.

Dim strManaufacturer As String = Utilities.IsNull(Request.Form("Manufacturer"))

ds = dbnet.Manufacturers("select distinct I001001 from TESTDATA.VININDEX")
     For Each dr As DataRow In ds.Tables(0).Rows
       litManf.Text &= String.Format("<option{0}>{1}</option>", IIf(dr("I001001").ToString().Trim().Equals(strManaufacturer, StringComparison.InvariantCultureIgnoreCase), " selected=selected", String.Empty), System.Web.HttpUtility.HtmlEncode(dr("I001001").ToString().Trim()))
     Next

但我不知道知道如何将所选值转换为字符串。

任何人都可以帮我这个吗？

But I do not know how to get the selected value into a string.
Can anyone help me with this?

推荐答案

我建​​议使用javascript / jquery使用所选事件上的选定值更新HTML中的隐藏字段，然后在服务器端使用它。

在javascript中你可以像这样使用

I would suggest to use javascript/jquery to update a hidden field in your HTML with the selected value on selected event then use it in your server side.
In javascript you can use like this

for (var i = 0; i  < document.getElementById("Manufacturer").options.length; i++) {
       if(select.options[i].selected ) {

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