Javascript 如何通过外部文本框过滤dojo增强型网格

在我的场景中，我正在维护一个网格，该网格需要通过文本框中的onchange事件过滤特定列。根据文本更改，应过滤网格。我已经能够使用enhancedgrid提供的过滤功能，并希望在外部执行

已导入“dojox/grid/EnhancedGrid”、“dojo/data/ItemFileWriteStore”、“dojox/grid/enhanced/plugins/Pagination”、“dojox/grid/enhanced/plugins/Filter”

这在外部js文件中。A.js

            grid = new EnhancedGrid({
                store: new ItemFileWriteStore({
                    data: gridObject
                }),

                // "username, firstName, lastName, email, userGroupName, lastLoginValue, phoneNo, organization, status"
                structure: [
                    {
                        name: "User Login Name",
                        field: "username",
                        width: "84px"

                    },
                    {
                        name: "First Name",
                        field: "firstName",
                        width: "84px"

                    },
                    {
                        name: "Last Name",
                        field: "lastName",
                        width: "70px"

                    },
                    {
                        name: "Email",
                        field: "email",
                        width: "70px"
                    }
                ],
                rowSelector: '20px',
                minRowsPerPage: 5,
                rowsPerPage: 5,
                plugins: {
                    pagination: {
                        pageSizes: ["10", "25", "50", "100", "All"],
                        description: true,
                        sizeSwitch: true,
                        pageStepper: true,
                        gotoButton: true,
                        /*page step to be displayed*/
                        maxPageStep: 4,
                        /*position of the pagination bar*/
                        position: "bottom"
                    },
                    filter: {
                        closeFilterbarButton: false,
                        ruleCount: 2
                            //itemsName: "rows"
                    }
                }
            }, "gridee");

            console.log(grid);
            /*append the new grid to the div*/
            grid.placeAt("gridView");
            grid.startup();

---------------功能端----------------

-----------html文件-----------------

这里使用angular和dojo。角度函数也被成功调用，并且能够进入filterGrid函数

网格===UsersCtrl

   <input type="search" placeholder="Filter by Keywords" data-column="all" data-ng-   model="grid.searchText" data-ng-change="grid.filterGrid()" data-dojo-type="dijit/form/TextBox" id="txtFilter">

   <div id="gridView" style="width:100%; height:300px" align="center" class="claro"></div>

---

我得到这个错误类型错误：对象不是函数。请帮助克服这一点。

很高兴在参考了这篇文章后，我有了一个想法

导入dijit/注册表

        grid = registry.byId("grid");
        if (filterText) {
            grid.setQuery({"username": filterText + "*"});
        } else {
            grid.setQuery({"username": "*"});
        }

        //dijit.byId("grid").store.fetch(query: {username: filterText});

        grid = registry.byId("grid");
        if (filterText) {
            grid.setQuery({"username": filterText + "*"});
        } else {
            grid.setQuery({"username": "*"});
        }

        //dijit.byId("grid").store.fetch(query: {username: filterText});