什么是处理多实例Properties.Settings.Default.Save（）的最佳方法

Question

I have a C# Winforms application that uses app.config to save 3 simple settings.

• Last selected path as string
• Window state as bool
• Updated as bool

This is a multi-instance application and when a user has more then one instance open and closes the application group, they are met with

System.Configuration.ConfigurationErrorsException: Failed to save settings: The configuration file has been changed by another program.

What is the best way to manage this?

I know I can catch the error and return out of application-exit method but this seems improper. It would seem to me that there should be a way to check if another instance is working in the file before calling Properties.Settings.Default.Save(); and then return out of the method.

Answer 1

捕获异常并调用Properties.Settings.Default.Reload()然后尝试再次保存。