快速入门：添加 Page 控件 (HTML)

项目
03/04/2016

[ 本文适用于编写 Windows 运行时应用的 Windows 8.x 和 Windows Phone 8.x 开发人员。如果你要针对 Windows 10 进行开发，请参阅最新文档 ]

了解如何创建和显示 PageControl 对象。

先决条件

我们假设你可以创建使用 JavaScript 的基本 Windows 应用商店应用，该应用使用 Windows JavaScript 库控件。有关如何开始使用 WinJS 控件的说明，请参阅快速入门：添加 WinJS 控件和样式。

创建 PageControl

与其他 Windows Library for JavaScript 控件不同，你不用直接实例化 PageControl。相反，你可通过调用 WinJS.UI.Pages.define 方法，传递定义 PageControl 的 HTML 文件的统一资源标识符 (URI) 和定义 PageControl 成员的对象来创建 PageControl。

这里是 PageControl 定义的示例。由三个文件组成：HTML 文件、CSS 文件和 JavaScript 文件。


<!-- samplePageControl.html -->
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>samplePageControl</title>

    <!-- WinJS references -->
    <link href="/pages/samplePageControl.css" rel="stylesheet">
    <script src="/pages/samplePageControl.js"></script>
</head>
<body>
    <div class="samplePageControl">
        <p class="samplePageControl-text"><span data-win-bind="textContent: controlText">Message goes here</span>
        <button class="samplePageControl-button">Click me</button></p>
        <p>Page controls can also contain WinJS controls. They are activated automatically.</p>
        <div class="samplePageControl-toggle" data-win-control="WinJS.UI.ToggleSwitch"></div>
    </div>
</body>
</html>


/* samplePageControl.css */
.samplePageControl
{
    padding: 5px;
    border: 4px dashed #999999;
}


// samplePageControl.js
(function () {
    "use strict";

    var ControlConstructor = WinJS.UI.Pages.define("/pages/samplePageControl.html", {
        // This function is called after the page control contents
        // have been loaded, controls have been activated, and
        // the resulting elements have been parented to the DOM.
        ready: function (element, options) {
            options = options || {};
            this._data = WinJS.Binding.as({ controlText: options.controlText, message: options.message });

            // Data bind to the child tree to set the control text
            WinJS.Binding.processAll(element, this._data);

            // Hook up the click handler on our button
            WinJS.Utilities.query("button", element).listen("click",
                // JavaScript gotcha - use function.bind to make sure the this reference
                // inside the event callback points to the control object, not to
                // window
                this._onclick.bind(this));

            // WinJS controls can be manipulated via code in the page control too
            WinJS.Utilities.query(".samplePageControl-toggle", element).listen("change",
                this._ontoggle.bind(this));
        },

        // Getter/setter for the controlText property.
        controlText: {
            get: function () { return this._data.controlText; },
            set: function (value) { this._data.controlText = value; }
        },

        // Event handler that was wired up in the ready method
        _onclick: function (evt) {
            WinJS.log && WinJS.log(this._data.message + " button was clicked", "sample", "status");
        },

        // Event handler for when the toggle control switches
        _ontoggle: function (evt) {
            var toggleControl = evt.target.winControl;
            WinJS.log && WinJS.log(this._data.message + " toggle is now " + toggleControl.checked, "sample", "status");
        }
    });

    // The following lines expose this control constructor as a global.
    // This lets you use the control as a declarative control inside the
    // data-win-control attribute.

    WinJS.Namespace.define("Controls_PageControls", {
        SamplePageControl: ControlConstructor
    });
})();

若要在 Microsoft Visual Studio 中创建 Page 控件，请从主菜单中选择“项目”>“添加新项”，然后选择“Page 控件”。****

显示 PageControl

一旦你定义了 PageControl，有几种方式可以显示：

使用 WinJS.UI.Pages.render 功能。

<div class="renderingPageControls-renderedControl"></div>

// Render the page control via a call to WinJS.UI.Pages.render. This lets
// you render a page control by referencing it via a url.
var renderHost = element.querySelector(".renderingPageControls-renderedControl");
WinJS.UI.Pages.render("/pages/SamplePageControl.html", renderHost, {
    controlText: "This control created by calling WinJS.UI.Pages.render",
    message: "Render control"
}).done();

公开暴露 PageControl 对象的构造函数，并使用它创建 PageControl。

<div class="renderingPageControls-createdProgrammatically"></div>

// Render the page control by creating the control.
var constructedHost = element.querySelector(".renderingPageControls-createdProgrammatically");
new Controls_PageControls.SamplePageControl(constructedHost, {
    controlText: "This control created by calling the constructor directly",
    message: "Constructed control"
});

使用 WinJS.UI.Pages.get 函数获取 PageControl 构造函数。

实例化 HTML 控件，就像是 JavaScript 控件的 Windows 库（事实如此）。你必须为此公开暴露 PageControl 对象的构造函数以进行处理。

<div data-win-control="Controls_PageControls.SamplePageControl"
    data-win-options="{controlText: 'This was created declaratively', message: 'Declarative control' }">
</div>

使用 HtmlControl 呈现页面。

 <div class="renderingPageControls-htmlControl" data-win-control="WinJS.UI.HtmlControl"
    data-win-options="{uri: '/pages/samplePageControl.html',
    controlText: 'This was rendered via the HtmlControl', 
    message: 'HTML Control loaded control' }"></div>

摘要和后续步骤

你已了解了如何创建和显示 PageControl 对象。

有关如何使用 PageControl 对象的更多信息，请参阅快速入门：使用单页导航。

通过

快速入门：添加 Page 控件 (HTML)

先决条件

创建 PageControl

显示 PageControl

摘要和后续步骤

其他资源