How can I add an ampersand for a value in a ASP.net/C# app config file value

c# asp.net web-config

Use "&" instead of "&".

c# asp.net web-config

Have you tried this?

<appSettings>    <add key="myurl" value="http://www.myurl.com?&cid=&sid="/><appSettings>

c# asp.net web-config

I think you should be able to use the HTML escape character (&). They can be found at http://www.theukwebdesigncompany.com/articles/entity-escape-characters.php