Question

有两个表使用相同的来源。这些表使用了kendo模板的源绑定。目前，这两个表的来源都是employees。这两个表都显示相同的数据。

现在，我们需要对其进行修改，以便仅在结果表中显示复选框选中的记录。此外，当用户单击结果表上的删除按钮时，应在节表中取消选中该复选框。

我们需要做些什么修改才能让它在MVVM中运行？

enter image description here

头

<head>
    <title>MVVM Test</title>
    <script type="text/javascript" src="lib/kendo/js/jquery.min.js"></script>
    <script type="text/javascript" src="lib/kendo/js/kendo.web.min.js"></script>

    <!----Kendo Templates-->
    <script id="row-template" type="text/x-kendo-template">
          <tr>
                <td data-bind="text: name"></td>
                <td data-bind="text: age"></td>
                <td><button type="button" data-bind="click: deleteEmployee">Delete</button></td>
          </tr>
    </script>
    <script id="selection-table-template" type="text/x-kendo-template">
          <tr>
                <td data-bind="text: name"></td>
                <td data-bind="text: age"></td>
                <td>
                  <input type="checkbox" name="selection" value="a">             
                </td>

          </tr>

    </script>

    <!--MVVM Wiring using Kendo Binding-->
    <script type="text/javascript">

        $(document).ready(function () {
            kendo.bind($("body"), viewModel);
        });

    </script>

</head>

MVVM

    <script type="text/javascript">
        var viewModel = kendo.observable({

            // model definition
            employees: [
        { name: "Lijo", age: "28" },
        { name: "Binu", age: "33" },
        { name: "Kiran", age: "29" }
        ],

            personName: "",
            personAge: "",

            //Note: Business functions  does not access any DOM elements using jquery.
            //They are referring only the objects in the view model.

            //business functions  (uses "this" keyword - e.g. this.get("employees"))
            addEmployee: function () {
                this.get("employees").push({
                    name: this.get("personName"),
                    age: this.get("personAge")
                });

                this.set("personName", "");
                this.set("personAge", "");
            },

            deleteEmployee: function (e) {

                //person object is created using "e"
                var person = e.data;

                var employees = this.get("employees");
                var index = employees.indexOf(person);
                employees.splice(index, 1);
            }

        });

    </script>

车身

<body>


    <table id="selectionTable">
        <thead>
            <tr>
                <th>
                    Name
                </th>
                <th>
                    Age
                </th>
            </tr>
        </thead>
        <tbody data-template="selection-table-template" data-bind="source: employees">
        </tbody>
    </table>

  <br />
  <hr />

    <table id="resultTable">
        <thead>
            <tr>
                <th>
                    Name
                </th>
                <th>
                    Age
                </th>
            </tr>
        </thead>
        <!--The data-template attribute tells Kendo UI that the employees objects should be formatted using a Kendo UI template. -->
        <tbody data-template="row-template" data-bind="source: employees">
        </tbody>
    </table>


</body>

参考

Answer 1

使用字典存储[employee，boolean]来存储员工和复选框状态，并将字典绑定到视图

检查this

Answer 2

首先要做的事情。

如果在删除对象时从viewModel中删除该对象，它也将从源表中删除。如果您希望它是您描述的方式，则需要两个数组来处理此问题。但根据你问题的第一部分，我想我会发布一个解决方案。

HTML

<script id="row-template" type="text/x-kendo-template">
    <tr data-bind="visible: isChecked">
        <td data-bind="text: name"></td>
        <td data-bind="text: age"></td>
        <td>
            <button type="button" data-bind="click: deleteEmployee">Delete</button>
        </td>
    </tr>
</script>

<script id="selection-table-template" type="text/x-kendo-template">
    <tr>
        <td data-bind="text: name"></td>
        <td data-bind="text: age"></td>
        <td>
            <input type="checkbox" name="selection" data-bind="checked: isChecked"/>
        </td>
    </tr>
</script>

<table id="selectionTable">
    <thead>
        <tr>
            <th>Name</th>
            <th>Age</th>
        </tr>
    </thead>
    <tbody data-template="selection-table-template" data-bind="source: employees"/>
</table>

<br />
<hr />

<table id="resultTable">
    <thead>
        <tr>
            <th>Name</th>
            <th>Age</th>
        </tr>
    </thead>
    <tbody data-template="row-template" data-bind="source: employees"/>
</table>

JAVASCRIPT

var viewModel = kendo.observable({
    employees: [
        { name: "Lijo", age: "28", isChecked: true },
        { name: "Binu", age: "33", isChecked: true },
        { name: "Kiran", age: "29", isChecked: true }
    ],

    personName: "",
    personAge: "",

    addEmployee: function () {
        this.get("employees").push({
            name: this.get("personName"),
            age: this.get("personAge")
        });

        this.set("personName", "");
        this.set("personAge", "");
    },

    deleteEmployee: function (e) {
        var person = e.data;
        var employees = this.get("employees");
        var index = employees.indexOf(person);
        var employee = employees[index];

        //set
        employee.set('isChecked', false);
    }
});


$(document).ready(function () {
    kendo.bind($("body"), viewModel);
});

的jsfiddle

Fiddle

摘要

在“row-template”中使用data-bind="visible: isChecked"仅显示底部表格中的选定记录。

将复选框的模板设为

    <input type="checkbox" name="selection" data-bind="checked: isChecked"/>

在删除功能中，使用以下

    employee.set('isChecked', false);

如何仅显示结果表中的选定记录

2 个答案:

HTML

JAVASCRIPT

的jsfiddle

摘要