Question

@Html.DropDownListFor(model => model.State, new SelectList(Model._listAllStateVModel.ListAllStates, "Abbreviations", "Name"), "Select.....", new { ..... })

@Html.DropDownListFor(model => model.County, new SelectList(Model._listAllCountyVModel.ListAllCounty, "CountyId", "CountyName"), "Select.....", new { ..... })

我在DropDownListFor(model => model.State)＆amp; DropDownListFor(model => model.County) + the word "Other..."中的县名单，我想要的是当我选择除德州以外的任何州DropDownListFor郡必须改为“其他......”。我怎么能用jQuery ???

来做到这一点

Answer 1

试试这个..

<select Id="State">
  <option value="Texas">Texas</option>
  <option value="Sidney">Sidney</option>
  <option value="Gujarat">Gujarat</option>
</select>
<select Id="Country">
  <option value="USA">USA</option>
  <option value="Other">Other</option>
</select>

$('#State').change(function() {
    if ($('#State option:selected').text() != 'Texas') {
        $('#Country').val("Other").attr("selected", "selected");
    }
    else{
        $('#Country').val("USA").attr("selected", "selected");
    }
})

您还可以检查值而不是文本

Answer 2

这项工作很好.....

 $('#State').change(function () {
    if ($('#State option:selected').text() != 'Texas') {
        $('#County').val('Other').attr("selected", "selected");
    }
    else {
        $('#County').val(null).attr("selected", "selected");
    }
});

谢谢

使用MVC中的jQuery基于另一个下拉列表更改下拉列表

2 个答案: