Escape & in App.config

问题

I have the following piece of config in my App.config file:

<add key="ConnectionString" 
     value="INITIAL CATALOG=myDatabase;DATA SOURCE=myServer;User ID=myUser;Password=!&myPass99;"/>

The above connection string is rejected by Visual Studio intellisense. It says entity myPass99 not defined. The problem is caused by the & in the password.

How do I escape it?

回答1:

Escape the ampersand by using & in place of the &

As an FYI, see here for further characters: What characters do I need to escape in XML documents?

来源：https://stackoverflow.com/questions/10883745/escape-in-app-config