动态创建自定义数据集

1. 引用数据集组件的js文件 import TableData from "$UI/wxsys/comps/tableData/tableData";

2. 定义需要创建的列信息并进行new

   (1). defCols中json的格式定义列信息，如下是定义了code、name、id三个列，并且设置类的类型以及规则

   (2).initData中定义默认创建带的初始化数据，也可以不带

   (3).options中定义idColumn、autoMode等

     autoMode的值可以有三个选择：load、new、null；load是默认加载initData中初始化的数据，new是默认新增，null是不加载也不新增需要的时候自己操作
   

   (4).new方法中this就是当前页面，helloData是创建的数据集的id，可以通过this.comp("helloData")获取数据对象

        var config = {
            "defCols": {
                code: {
                    define: "code",
                    label: "编码",
                    type: "string",
                    rules: {
                        "readonly": function ($row) { },
                        "default": function () { },
                        "required": {
                            "fn": function ($row) { },
                            "msg": "",
                        },
                        "constraint": {
                            "fn": function ($row) { },
                            "msg": "",
                        },
                        "calculate": function ($row) { return "aaa"}
                    }
                },
                name: {
                    define: "name",
                    label: "名称",
                    type: "string"
                },
                id: {
                    define: "name",
                    label: "名称",
                    type: "string"
                }
            },
            "initData": [
                {
                    "code": "1",
                    "name": "1",
                    "id": "1"
                },
                {
                    "code": "2",
                    "name": "2",
                    "id": "2"
                }
            ],
            "filters": {},
            "options": {
                "limit": 20,
                "orderBy": [],
                "depends": [],
                "isMain": false,
                "autoMode": "load",
                "directDelete": true,
                "confirmDelete": true,
                "confirmRefreshText": "",
                "allowEmpty": false,
                "confirmDeleteText": "",
                "confirmRefresh": true,
                "idColumn": "id",
                "dataReadonly": function ($data) { },
                "deleteConstraint": function ($row) { },
                "deleteConstraintMsg": function ($row) { }
            }
        };
        var data = new TableData(this, "helloData", config);