How can I remove the hard coding of the web service address from .ClientConfig files - silverlight

Question

I have 5 SilverLight projects in my ASP .NET MVC 4 application. For each of these projects, there is a web service which passes data to and from the silverlight control.
When we deploy the application on the client's server, we update the .ClientConfig file of each SilverLight project by changing the address of the web service.
That is we change -
<endpoint address="http://localhost:52213/SchemeReimbursementMasterService.asmx"
binding="basicHttpBinding" bindingConfiguration="SchemeReimbursementMasterServiceSoap"
contract="SchemeServiceReference.SchemeReimbursementMasterServiceSoap"
name="SchemeReimbursementMasterServiceSoap" />
to -
<endpoint address="http://192.168.5.48/SCHEME/SchemeReimbursementMasterService.asmx"
binding="basicHttpBinding" bindingConfiguration="SchemeReimbursementMasterServiceSoap"
contract="SchemeServiceReference.SchemeReimbursementMasterServiceSoap"
name="SchemeReimbursementMasterServiceSoap" />
Then we build it and publish the application.
So, in future, if the address changes, we would have to change it in all the five .ClientConfig files and build/publish it again. Is there any way we can remove this hardcoding so that it figures out the base part of the url (i.e: http://192.168.5.48/SCHEME/) on its own.

Answer 1

In my application's web.config, I added keys for the service names.
<appSettings>
<add key="ReviewUrl" value="ReviewClaimsService.asmx"/>
<add key="ReimbursementUrl" value="SchemeReimbursementMasterService.asmx"/>
<add key="DiscountUrl" value="DiscountMasterSchemeService.asmx"/>
</appSettings>
In the controller, I created the URL using the HttpContext and the service name from web.config and passed it to the view.
var baseUrl = "http://" + HttpContext.Request.Headers["Host"];
var applicationPath = HttpContext.Request.ApplicationPath;
if (applicationPath == "/")
baseUrl = baseUrl + "/";
var url = baseUrl + ConfigurationManager.AppSettings["ReimbursementUrl"];
In the View, I passed this URL to the silverlight control using InitParams.
<object id="TownsGrid" data="data:application/x-silverlight-2," type="application/x-silverlight-2">
<param name="InitParams" value="ControlName=TownDataGrid,ServiceUrl=#Model.ServiceUrl" />
<param name="source" value="#Url.Content("~/ClientBin/SilverlightApplication.xap")"/>
</object>
In the Application_Startup method of the silverlight project, I passed the URL on to the SilverLight control.
private void Application_Startup(object sender, StartupEventArgs e)
{
var url = e.InitParams["ServiceUrl"];
this.RootVisual = new SilverlightApplication.TownDataGrid(url);
}
And finally, in the silverlight control, I assign the url to the endpoint.
public TownDataGrid(string serviceUrl)
{
InitializeComponent();
EndpointAddress endpoint = new EndpointAddress(serviceUrl);
BasicHttpBinding binding = new BasicHttpBinding();
client = new SchemeReimbursementMasterServiceSoapClient(binding,endpoint);
}