如何从另一个Select2下拉菜单中选择一个Select2下拉菜单的值

Question

我有两个Select2下拉菜单，如下所示

我的要求是，当用户从第一个下拉列表中选择项目代码时，将在第二个下拉列表中填充该项目代码对应的项目名称，反之亦然。

这是我的代码：

<select id="ItemCode" class="ItemCode form-control" style="width: 200px;">
                        <option value='Select'>- Search ItemCode -</option>
                    </select>
<select id="ItemName" class="ItemName form-control" style="width: 200px;">
                        <option value='Select'>- Search ItemName -</option>
                    </select>

.js文件：

$("#ItemCode").select2({
        ajax: {
            url: "/Dashboard/GetItemCodeList",
            type: "post",
            dataType: 'json',
            delay: 250,
            data: function (params) {
                return {
                    searchTerm: params.term // search term
                };
            },
            processResults: function (response) {
                return {
                    results: response
                };
            },
            cache: true
        }
    });

    $("#ItemName").select2({
        ajax: {
            url: "/Dashboard/GetItemNameList",
            type: "post",
            dataType: 'json',
            delay: 250,
            data: function (params) {
                return {
                    searchTerm: params.term // search term
                };
            },
            processResults: function (response) {
                return {
                    results: response
                };
            },
            cache: true
        }
    });

控制器：

/*ItemCode Choose From List*/
        public JsonResult GetItemCodeList(string SearchTerm)
        {
            if (SearchTerm == null)
                SearchTerm = string.Empty;
            var searchData = SBOConnection.GetItemMasterDetails("Code").Where(x => x.id.Contains(SearchTerm)).ToList();
            return Json(searchData, JsonRequestBehavior.AllowGet);
        }

        /*ItemName Choose From List*/
        public JsonResult GetItemNameList(string SearchTerm)
        {
            if (SearchTerm == null)
                SearchTerm = string.Empty;
            var searchData = SBOConnection.GetItemMasterDetails("Name").Where(x => x.text.Contains(SearchTerm)).ToList();
            return Json(searchData, JsonRequestBehavior.AllowGet);
        }

如何通过选择ItemCode Select2下拉菜单来更改ItemName Select2下拉菜单的值？