自动[升级＆QUOT;从app.config文件的previous版本的用户设置？ [英] Automatically "upgrade" user settings from previous version of app.config file?

问题描述

我每次编译我的应用程序和版本号的变化（我有一个自动递增的版本号），我失去了用户配置的app.config设置，因为它们存储在应用程序数据文件夹中的一个特定版本。从本质上讲，我的应用程序的每个版本从头开始，只要用户设置去了。

Every time I compile my app and the version number changes (I have an auto-incrementing build number), I lose the user-configured app.config settings, since they're stored in the AppData folder for a specific version. Essentially, every release of my application starts from scratch as far as user settings go.

虽然这是发展一个温和的烦恼，它提出了一个问题，因为我接近部署/释放一个补丁改变我的应用程序？如果是这样，有一个简单的方法来提升，从previous发布的设置的版本号？我知道，在注册表中使用HKCU是另一种选择，但我喜欢轻松的My.Settings命名空间，我想留在app.config中。

While this is a mild annoyance in development, it raises the question as I approach deployment/release - if I use the app.config to store my user settings, will the user's personalized settings be hosed every time they install a patch that changes the version number of my app? If so, is there an easy way to "upgrade" the settings from the previous release? I know that using HKCU in the registry is another option, but I like the ease of the My.Settings namespace, and I'd like to stay with app.config.

<一个href="http://stackoverflow.com/questions/621265/net-2-0-application-settings-user-config-file-location">Another SO质疑问类似的事情，但答案似乎并不清晰。将设置我的MSI，因此要求升级足以preserve这些用户级别设置的用户？

Another SO question asks something similar, though the answer doesn't seem that clear. Will setting my MSI so it asks the user to upgrade be enough to preserve these user-level settings?

推荐答案

你看<一href="http://msdn.microsoft.com/en-us/library/system.configuration.applicationsettingsbase.upgrade.aspx">ApplicationSettingsBase.Upgrade()?它允许设置可使用以下调用一个previous版本升级：

Have you looked at ApplicationSettingsBase.Upgrade()? It allows the settings to be upgraded from a previous version using the following call:

My.Settings.Upgrade()

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