Question

我有这个简单的JsonResult动作，我需要根据名称进行过滤，如果它不存在，请将名称添加到Db中。然而，我的自动完成结果只是在键入2个字母而忽略了我的输入之后将我的所有列表都放到了我的表中我的代码：

   public JsonResult GetSubjectsName(string term)
    {
        var results = db.Subject.Where(s => term == null ||
        s.SubjectName.ToLower().Contains(term.ToLower())).Select(x => new
        { id = x.SubjectId, value = x.SubjectName  }).Distinct().ToList();
        return Json(results, JsonRequestBehavior.AllowGet);
    }
<script type="text/javascript">
   $("#term").autocomplete({
        source: function (request, response) {
            $.ajax({
                url: "GetSubjectsName",
                data: "{'keywords': '" + request.term + "' }",
                dataType: 'json',
                type: "POST",
                contentType: "application/json; charset=utf-8",
                dataFilter: function (data) { return data; },
                success: function (data) {
                    response($.map(data, function (item) {
                        return {
                            label: item.value,
                            value: item.value,
                            id: item.id,
                        }
                    }))
                }
            });
        },
        minLength: 2,
    });

Answer 1

上述代码的问题是您的操作GetSubjectsName采用名为term的参数，但在传入ajax时，您将参数传递为'keywords'所以将代码更改为

<script type="text/javascript">
$(document).ready(function () {
      $("#term").autocomplete({
        source: function (request, response) {
            $.ajax({
                url: "GetSubjectsName",
                data: { term: request.term },
                dataType: 'json',
                type: "POST",
                contentType: "application/json; charset=utf-8",
                dataFilter: function (data) { return data; },
                success: function (data) {
                    response($.map(data, function (item) {
                        return {
                            label: item.value,
                            value: item.value,
                            id: item.id,
                        }
                    }))
                }
            });
        },
        minLength: 2,
    });

});
</script>

jquery autocomplete不过滤并显示所有结果

1 个答案: