為文本框增加自動提示下拉功能，比如輸入 1，則從後臺數據庫查詢出包含1 的字段，在文本框增加下拉列表供用戶選擇

ajax 返回數據為搜索查詢字段的json集合

<script src="../../Scripts/JqueryUInew/jquery.autocomplete.js" type="text/javascript"></script>

    <link href="../../Scripts/JqueryUInew/jquery.autocomplete.css" rel="stylesheet" type="text/css" />
    <script type="
 
text/javascript">
        $(function() {

        $("#txtCourseNameSearch").autocomplete("../AutoCompleteTextView/AutocompleteCourse.ashx?id=3", {
                dataType: "json",
                selectFirst: false,
                highlight: false,
                multiple: true,
                multipleSeparator: 
 
" ",
                scroll: true,
                scrollHeight: 300

            });
        });
        </script>

Jquery 搜索框自動提示