Web.Config encoding problems

Wanted to let you know that I've tried to solve my problem before turning to the community for help.

I need to send a request with a couple of query parameters to a web service from which I should get an XML in the response which I need to parse and populate image source and image link with the values.

let's assume the the url for the website is:

domain.com/user=1&passwd=2&param=u

When i type this in a browser I could see the XML i should get as a response.

I place the value in appSettings in a web.Config file like so:

<appSettings>
    <add key="GetImageUrl" value="http://domain.com/user=1&passwd=2&param=u"/>
</appSettings>

However, 开发者_JAVA技巧this would not compile because the compiler cannot understand '&' so I used the encoded version like this:

<appSettings>
     <add key="GetImageUrl" value="http://domain.com/user=1&amp;passwd=2&amp;param=u"/>
</appSettings>

However, when I type this I see the XML with "Error" values which is one of the expected values to be returned if wrong parameters are sent.

How should I proceed?

Thank you very much!

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Edit:

Wanted to let you know that I've also tried "&;amp;" and "%26"

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The web.config file is an XML file, so you must encode & as &.

When reading the value in your program, you will get a &.

I don't know wha tyou mean by:

when I type this I see the XML with "Error" values which is one of the expected values to be returned if wrong parameters are sent

Where is this happening? Sending where?