where to insert <appSettings... > tag in web.config file

dear sir,
i am unable to short out a problem that i get when inserting this <appSettings....> code in web.config file.i think i am not placing it right place..so plz help

Code:

<appSettings>
    <add key="SQLCON" value="Data Source=.\sqlexpress;Initial Catalog=DB1;Integrated Security=True;Pooling=False"/>
  </appSettings>

after inserting this in web.config i am properly writing the SqlConnection statements in main .cs file.

 

<appSettings> would go directly under <configuration>
http://msdn.microsoft.com/en-us/library/aa903313(VS.71).aspx

Code:

<configuration>
    <appSettings>
        <add key="Application Name" value="MyApplication" />
    </appSettings>
</configuration>

 

For connection strings you can use the

section instead of appsettings. It will be like