Javascript

Question

Javascript:

我希望我的 Windows 商店应用检查更新，尤其是强制更新，然后提示用户更新。

我发现这涉及到 Windows.Services.Store，但我找不到任何 javascript 如何完成的示例，只有通常的 c#/vb 示例。

有人知道代码模板吗？

Answer 1

I have found out this involves Windows.Services.Store, but I cannot find any javascript examples of how this is done, only the usual c#/vb ones.

我假设您找到的示例是 Code examples in Download and install package updates for your app。虽然，这些示例是用 C# 编写的，但我们可以轻松地将它们转换为 JavaScript，因为它们大多数是 Windows 运行时 API。

例如，使用下载并安装所有软件包更新，JavaScript 版本需要以下内容：

var context = Windows.Services.Store.StoreContext.getDefault();

context.getAppAndOptionalStorePackageUpdatesAsync().then(function (updates) {
    if (updates.size > 0) {
        var dialog = new Windows.UI.Popups.MessageDialog("Download and install updates now? This may cause the application to exit.", "Download and Install?");
        dialog.commands.append(new Windows.UI.Popups.UICommand("Yes"));
        dialog.commands.append(new Windows.UI.Popups.UICommand("No"));
        dialog.showAsync().then(function (command) {
            if (command.label === "Yes") {
                context.requestDownloadAndInstallStorePackageUpdatesAsync(updates).then(function (result) {
                    // TODO
                }, function (error) {
                    //TODO
                }, function (progress) {
                    var downloadProgressBar = document.getElementById("downloadProgressBar");
                    downloadProgressBar.value = progress.packageDownloadProgress;
                });
            }
        });
    }
});

C# 和 JavaScript 版本之间的两个主要区别是 casing conventions and asynchronous methods. For more info, please see Using the Windows Runtime in JavaScript。

Javascript - Windows 商店 - 强制强制更新

Javascript - Windows Store - Forcing Mandatory Update

updates

win-universal-app

uwp