WinJS 应用程序不显示垂直滚动条

Question

您好，我正在尝试使用 visual studio.

让垂直滚动条出现在 windows 10 应用程序中

步骤：

加载 Visual Studio 2015
Select 文件 > 新项目
选择 Javascript > 通用 > WinJS 应用程序
打开index.html修改如下
运行应用

没有出现垂直滚动条。我一直在挣扎，谁能告诉我如何让它工作。

谢谢

index.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>App1</title>
    <link href="lib/winjs-4.0.1/css/ui-light.css" rel="stylesheet" />
    <script src="lib/winjs-4.0.1/js/base.js"></script>
    <script src="lib/winjs-4.0.1/js/ui.js"></script>
    <link href="css/default.css" rel="stylesheet" />
    <script src="js/main.js"></script>
</head>
<body class="win-type-body">
    <div style="overflow-y:auto">
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
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        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
    </div>
</body>
</html>

main.js

// For an introduction to the Blank template, see the following documentation:
// http://go.microsoft.com/fwlink/?LinkId=232509

(function () {
    "use strict";

    var app = WinJS.Application;
    var activation = Windows.ApplicationModel.Activation;
    var isFirstActivation = true;

    app.onactivated = function (args) {
        if (args.detail.kind === activation.ActivationKind.voiceCommand) {
            // TODO: Handle relevant ActivationKinds. For example, if your app can be started by voice commands,
            // this is a good place to decide whether to populate an input field or choose a different initial view.
        }
        else if (args.detail.kind === activation.ActivationKind.launch) {
            // A Launch activation happens when the user launches your app via the tile
            // or invokes a toast notification by clicking or tapping on the body.
            if (args.detail.arguments) {
                // TODO: If the app supports toasts, use this value from the toast payload to determine where in the app
                // to take the user in response to them invoking a toast notification.
            }
            else if (args.detail.previousExecutionState === activation.ApplicationExecutionState.terminated) {
                // TODO: This application had been suspended and was then terminated to reclaim memory.
                // To create a smooth user experience, restore application state here so that it looks like the app never stopped running.
                // Note: You may want to record the time when the app was last suspended and only restore state if they've returned after a short period.
            }
        }

        if (!args.detail.prelaunchActivated) {
            // TODO: If prelaunchActivated were true, it would mean the app was prelaunched in the background as an optimization.
            // In that case it would be suspended shortly thereafter.
            // Any long-running operations (like expensive network or disk I/O) or changes to user state which occur at launch
            // should be done here (to avoid doing them in the prelaunch case).
            // Alternatively, this work can be done in a resume or visibilitychanged handler.
        }

        if (isFirstActivation) {
            // TODO: The app was activated and had not been running. Do general startup initialization here.
            document.addEventListener("visibilitychange", onVisibilityChanged);
            args.setPromise(WinJS.UI.processAll());
        }

        isFirstActivation = false;
    };

    function onVisibilityChanged(args) {
        if (!document.hidden) {
            // TODO: The app just became visible. This may be a good time to refresh the view.
        }
    }

    app.oncheckpoint = function (args) {
        // TODO: This application is about to be suspended. Save any state that needs to persist across suspensions here.
        // You might use the WinJS.Application.sessionState object, which is automatically saved and restored across suspension.
        // If you need to complete an asynchronous operation before your application is suspended, call args.setPromise().
    };

    app.start();

})();

whatIAmTryingToDo.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>App1</title>
    <link href="lib/winjs-4.0.1/css/ui-light.css" rel="stylesheet" />
    <script src="lib/winjs-4.0.1/js/base.js"></script>
    <script src="lib/winjs-4.0.1/js/ui.js"></script>
    <link href="css/default.css" rel="stylesheet" />
    <script src="js/main.js"></script>
</head>
<body style="display:flex;flex-direction:column">
    <div style="flex:none;height:50px;background:#000">
        <p style="color:#fff;padding-left:10px">Logo + login</p>
    </div>
    <div style="flex:1;height:100%;display:flex;flex-direction:row">
        <div style="flex:none;width:30%;background:#015c1a">
            <div style="background:#006400">
                <div style="height:25px;padding:5px 5px 5px 10px;color:white;font-weight:bold">Activity(0)</div>
            </div>
            <div style="background:#ff6a00;height:90.75%;overflow-y:auto">
                <p>test</p>
                <p>test</p>
                <p>test</p>
                <p>test</p>
                <p>test</p>
                <p>test</p>
                <p>test</p>
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                <p>test</p>
                <p>test</p>
                <p>test111111</p>
            </div>
        </div>
        <div style="flex:1;background:#000;margin-bottom:50px;overflow-y:auto">
            <p style="color:#fff;padding-left:10px">Main content here</p>
        </div>
    </div>
</body>
</html>

Answer 1

No vertical scrollbar appears. I have been struggling, can somebody tell me how to get it to work.

如果您不设置 Div 的高度，它会随其内容自行扩展。所以在这种情况下滚动条不会显示。

所以有两种方法可以解决这个问题：

明确设置 Div 的高度：

<div style="overflow-y:auto;height:500px">
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        ...
</div>

在 body 标签上使用 overflow-y:auto：

<body class="win-type-body" style="overflow-y:auto;">
    <div>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        <p>test</p>
        ...
    </div>
</body>

WinJS 应用程序不显示垂直滚动条

WinJS app not showing vertical scrollbar

javascript

winjs

windows-10-universal