如何更新当前应用程序而不会丢失当前现有记录？

Question

我已经创建了一个示例应用程序并在我的网站上安装它，我已经输入了一些数据到我的应用程序（列出了记录），然后我在我的应用上更新了一些代码，我不知道如何重新安装它到我的网站，没有丢失任何数据？

Answer 1

You need to follow an upgrade process to update the apps.

For an update, you use the same product ID in the app manifest that you used for the original version. The version number in the app manifest should be greater than the version number of the original app or the most recent update.

Following article at msdn describes it in detail:

App for SharePoint update process