Question

can anyone please help me how can I set/store values in the app.config file using c#, is it possible at all?

Answer 1

If you are using App.Config to store values in <add Key="" Value="" /> or CustomSections section use ConfigurationManager class, else use XMLDocument class.

For example:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <add key="server" value="192.168.0.1\xxx"/>
    <add key="database" value="DataXXX"/>
    <add key="username" value="userX"/>
    <add key="password" value="passX"/>
  </appSettings>
</configuration>

You could use the code posted on CodeProject