How to programmatically modify WCF app config endpoint address setting

Question

I d like to programmatically modify my app config file to set which service file endpoint should be used   What is the best way to do this at runtime   For reference    lt endpoint address  http   mydomain MyService svc      binding  wsHttpBinding  bindingConfiguration  WSHttpBinding IASRService      contract  ASRService IASRService  name  WSHttpBinding IASRService  gt       lt identity gt           lt dns value  localhost    gt       lt  identity gt   lt  endpoint gt

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You can do it like this    Keep your settings in a separate xml file and read through it when you create a proxy for your service     For example   i want to modify my service endpoint address at runtime so i have the following ServiceEndpoint xml file          lt  xml version  1 0  encoding  utf-8    gt        lt Services gt           lt Service name  FileTransferService  gt              lt Endpoints gt                 lt Endpoint name  ep1  address  http   localhost 8080 FileTransferService svc    gt              lt  Endpoints gt           lt  Service gt        lt  Services gt     For reading your xml         var doc   new XmlDocument     doc Load FileTransferConstants Constants SERVICE ENDPOINTS XMLPATH    XmlNodeList endPoints   doc SelectNodes   Services Service Endpoints       foreach  XmlNode endPoint in endPoints         foreach  XmlNode child in endPoint                if  child Attributes  name   Value Equals  ep1                          var adressAttribute   child Attributes  address                if   ReferenceEquals null  adressAttribute                                 address   adressAttribute Value                                   Then get your web config file of your client at runtime and assign the service endpoint address as        Configuration wConfig   ConfigurationManager OpenMappedExeConfiguration new ExeConfigurationFileMap   ExeConfigFilename     C  FileTransferWebsite web config     ConfigurationUserLevel None       ServiceModelSectionGroup wServiceSection   ServiceModelSectionGroup GetSectionGroup wConfig        ClientSection wClientSection   wServiceSection Client      wClientSection Endpoints 0  Address   new Uri address       wConfig Save

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SomeServiceClient client   new SomeServiceClient     var endpointAddress   client Endpoint Address    gets the default endpoint address  EndpointAddressBuilder newEndpointAddress   new EndpointAddressBuilder endpointAddress                   newEndpointAddress Uri   new Uri  net tcp   serverName 8000 SomeServiceName                     client   new SomeServiceClient  EndpointConfigurationName   newEndpointAddress ToEndpointAddress       I did it like this  The good thing is it still picks up the rest of your endpoint binding settings from the config and just replaces the URI

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I use the following code to change the endpoint address in the App Config file  You may want to modify or remove the namespace before usage   using System  using System Xml  using System Configuration  using System Reflection         namespace Glenlough Generations SupervisorII       public class ConfigSettings                private static string NodePath      system serviceModel  client  endpoint           private ConfigSettings                public static string GetEndpointAddress                         return ConfigSettings loadConfigDocument   SelectSingleNode NodePath  Attributes  address   Value                     public static void SaveEndpointAddress string endpointAddress                           load config document for current assembly             XmlDocument doc   loadConfigDocument                    retrieve appSettings node             XmlNode node   doc SelectSingleNode NodePath                if  node    null                  throw new InvalidOperationException  Error  Could not find endpoint node in config file                  try                                  select the  add  element that contains the key                   XmlElement elem    XmlElement node SelectSingleNode string Format    add  key   0      key                    node Attributes  address   Value   endpointAddress                   doc Save getConfigFilePath                               catch  Exception e                                 throw e                                   public static XmlDocument loadConfigDocument                         XmlDocument doc   null              try                               doc   new XmlDocument                    doc Load getConfigFilePath                     return doc                            catch  System IO FileNotFoundException e                                throw new Exception  No configuration file found    e                                    private static string getConfigFilePath                         return Assembly GetExecutingAssembly   Location     config

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I think what you want is to swap out at runtime a version of your config file  if so create a copy of your config file  also give it the relevant extension like  Debug or  Release  that has the correct addresses  which gives you a debug version and a runtime version   and create a postbuild step that copies the correct file depending on the build type   Here is an example of a postbuild event that I ve used in the past which overrides the output file with the correct version  debug runtime   copy    ProjectDir ServiceReferences ClientConfig   ConfigurationName      ProjectDir ServiceReferences ClientConfig   Y   where     ProjectDir  is the project directory where the config files are located   ConfigurationName  is the active configuration build type  EDIT  Please see Marc s answer for a detailed explanation on how to do this programmatically

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MyServiceClient client   new MyServiceClient binding  endpoint   client Endpoint Address   new EndpointAddress  net tcp   localhost webSrvHost service svc    client Endpoint Binding   new NetTcpBinding                                 Name    yourTcpBindConfig                   ReaderQuotas   XmlDictionaryReaderQuotas Max                  ListenBacklog   40     It s very easy to modify the uri in config or binding info in config  Is this what you want

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I have modified and extended Malcolm Swaine s code to modify a specific node by it s name attribute  and to also modify an external config file  Hope it helps   using System  using System Collections Generic  using System Linq  using System Text  using System Xml  using System Reflection   namespace LobbyGuard UI Registration   public class ConfigSettings        private static string NodePath      system serviceModel  client  endpoint        private ConfigSettings            public static string GetEndpointAddress                 return ConfigSettings loadConfigDocument   SelectSingleNode NodePath  Attributes  address   Value             public static void SaveEndpointAddress string endpointAddress                   load config document for current assembly         XmlDocument doc   loadConfigDocument                retrieve appSettings node         XmlNodeList nodes   doc SelectNodes NodePath            foreach  XmlNode node in nodes                        if  node    null                  throw new InvalidOperationException  Error  Could not find endpoint node in config file                    If this isnt the node I want to change  look at the next one               Change this string to the name attribute of the node you want to change             if  node Attributes  name   Value     DataLocal Endpoint1                                 continue                             try                                  select the  add  element that contains the key                   XmlElement elem    XmlElement node SelectSingleNode string Format    add  key   0      key                    node Attributes  address   Value   endpointAddress                   doc Save getConfigFilePath                      break                            catch  Exception e                                throw e                                     public static void SaveEndpointAddress string endpointAddress  string ConfigPath  string endpointName                   load config document for current assembly         XmlDocument doc   loadConfigDocument ConfigPath               retrieve appSettings node         XmlNodeList nodes   doc SelectNodes NodePath            foreach  XmlNode node in nodes                        if  node    null                  throw new InvalidOperationException  Error  Could not find endpoint node in config file                    If this isnt the node I want to change  look at the next one             if  node Attributes  name   Value    endpointName                                continue                             try                                  select the  add  element that contains the key                   XmlElement elem    XmlElement node SelectSingleNode string Format    add  key   0      key                    node Attributes  address   Value   endpointAddress                   doc Save ConfigPath                    break                            catch  Exception e                                throw e                                     public static XmlDocument loadConfigDocument                 XmlDocument doc   null          try                       doc   new XmlDocument                doc Load getConfigFilePath                 return doc                    catch  System IO FileNotFoundException e                        throw new Exception  No configuration file found    e                        public static XmlDocument loadConfigDocument string Path                XmlDocument doc   null          try                       doc   new XmlDocument                doc Load Path               return doc                    catch  System IO FileNotFoundException e                        throw new Exception  No configuration file found    e                        private static string getConfigFilePath                 return Assembly GetExecutingAssembly   Location     config

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Is this on the client side of things    If so  you need to create an instance of WsHttpBinding  and an EndpointAddress  and then pass those two to the proxy client constructor that takes these two as parameters      using System ServiceModel  WSHttpBinding binding   new WSHttpBinding    EndpointAddress endpoint   new EndpointAddress new Uri  http   localhost 9000 MyService      MyServiceClient client   new MyServiceClient binding  endpoint     If it s on the server side of things  you ll need to programmatically create your own instance of ServiceHost  and add the appropriate service endpoints to it   ServiceHost svcHost   new ServiceHost typeof MyService   null    svcHost AddServiceEndpoint typeof IMyService                               new WSHttpBinding                                 http   localhost 9000 MyService      Of course you can have multiple of those service endpoints added to your service host  Once you re done  you need to open the service host by calling the  Open   method   If you want to be able to dynamically - at runtime - pick which configuration to use  you could define multiple configurations  each with a unique name  and then call the appropriate constructor  for your service host  or your proxy client  with the configuration name you wish to use   E g  you could easily have    lt endpoint address  http   mydomain MyService svc          binding  wsHttpBinding  bindingConfiguration  WSHttpBinding IASRService          contract  ASRService IASRService           name  WSHttpBinding IASRService  gt           lt identity gt               lt dns value  localhost    gt           lt  identity gt   lt  endpoint gt    lt endpoint address  https   mydomain MyService2 svc          binding  wsHttpBinding  bindingConfiguration  SecureHttpBinding IASRService          contract  ASRService IASRService           name  SecureWSHttpBinding IASRService  gt           lt identity gt               lt dns value  localhost    gt           lt  identity gt   lt  endpoint gt    lt endpoint address  net tcp   mydomain MyService3 svc          binding  netTcpBinding  bindingConfiguration  NetTcpBinding IASRService          contract  ASRService IASRService           name  NetTcpBinding IASRService  gt           lt identity gt               lt dns value  localhost    gt           lt  identity gt   lt  endpoint gt     three different names  different parameters by specifying different bindingConfigurations  and then just pick the right one to instantiate your server  or client proxy    But in both cases - server and client - you have to pick before actually creating the service host or the proxy client  Once created  these are immutable - you cannot tweak them once they re up and running   Marc

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see if you are placing the client section in the correct web config file  SharePoint has around 6 to 7 config files  http   msdn microsoft com en-us library office ms460914 v office 14  aspx  http   msdn microsoft com en-us library office ms460914 28v office 14 29 aspx    Post this you can simply try  ServiceClient client   new ServiceClient  ServiceSOAP

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For what it s worth  I needed to update the port and scheme for SSL for my RESTFul service   This is what I did   Apologies that it is a bit more that the original question  but hopefully useful to someone      Don t forget to add references to System ServiceModel and System ServiceModel Web  using System ServiceModel  using System ServiceModel Configuration   var port   1234  var isSsl   true  var scheme   isSsl    https     http    var currAssembly   System Reflection Assembly GetExecutingAssembly   CodeBase  Configuration config   ConfigurationManager OpenExeConfiguration currAssembly    ServiceModelSectionGroup serviceModel   ServiceModelSectionGroup GetSectionGroup config       Get the first endpoint in services   This is my RESTful service  var endp   serviceModel Services Services 0  Endpoints 0       Assign new values for endpoint UriBuilder b   new UriBuilder endp Address   b Port   port  b Scheme   scheme  endp Address   b Uri      Adjust design time baseaddress endpoint var baseAddress   serviceModel Services Services 0  Host BaseAddresses 0  BaseAddress  b   new UriBuilder baseAddress   b Port   port  b Scheme   scheme  serviceModel Services Services 0  Host BaseAddresses 0  BaseAddress   b Uri ToString        Setup the Transport security BindingsSection bindings   serviceModel Bindings  WebHttpBindingCollectionElement x   WebHttpBindingCollectionElement bindings  webHttpBinding    WebHttpBindingElement y    WebHttpBindingElement x ConfiguredBindings 0   var e   y Security   e Mode   isSsl   WebHttpSecurityMode Transport   WebHttpSecurityMode None  e Transport ClientCredentialType   HttpClientCredentialType None      Save changes config Save

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This is the shortest code that you can use to update the app config file even if don t have a config section defined   void UpdateAppConfig string param       var doc   new XmlDocument       doc Load  YourExeName exe config       XmlNodeList endpoints   doc GetElementsByTagName  endpoint       foreach  XmlNode item in endpoints              var adressAttribute   item Attributes  address           if   ReferenceEquals null  adressAttribute                       adressAttribute Value   string Format  http   mydomain  0    param                    doc Save  YourExeName exe config

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this short code worked for me   Configuration wConfig   ConfigurationManager OpenExeConfiguration ConfigurationUserLevel None   ServiceModelSectionGroup wServiceSection   ServiceModelSectionGroup GetSectionGroup wConfig    ClientSection wClientSection   wServiceSection Client  wClientSection Endpoints 0  Address    lt your address gt   wConfig Save      Of course you have to create the ServiceClient proxy AFTER the config has changed  You also need to reference the System Configuration and System ServiceModel assemblies to make this work   Cheers

[c#] How to programmatically modify WCF app.config endpoint address setting?

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