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WSDL - Could not find default endpoint element that references contract

in my application I am referencing a WSDL service by "Add Service Reference"
then a service reference is created. with this entry in web.config:
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IExternalOrder" />
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://xx.xxx.com/ExternalOrder.svc"
binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IExternalOrder"
contract="WebReference.IExternalOrder" name="BasicHttpBinding_IExternalOrder" />
</client>
</system.serviceModel>
at this point I am trying to call this WSDL functions, in order to get the data that I need:
var GetOrderDetails_answer = ServiceHelper.GetOrderDetails(creds, this.OrderId);
inside ServiceHelper class:
public static GetAdminOrderDetailResponse GetOrderDetails(Request creds, string orderId)
{
////////////////////////////////////////////////////
ExternalOrderClient EOC = new ExternalOrderClient();
////////////////////////////////////////////////////
var GAOD = new GetAdminOrderDetailRequest
{
OrderID = orderId,
Password = creds.Password,
SiteID = creds.SiteID,
UserName = creds.UserName
};
try
{
return EOC.GetAdminOrderDetail(GAOD);
}
catch (Exception e)
{
/// TODO: log the error
return null;
}
}
The creation of the object ExternalOrderClient between "/////////////" lines
is throwing an exception:
Could not find default endpoint element that references contract
'WebReference.IExternalOrder' in the ServiceModel client configuration
section.
I tried every solution I could find (most of them are about calling the WSDL from other project, but i have only 1 project)
What is the fix for that?

WCF routing how to add Backuplist Programmatically

I'm using WCF routing service and I'm trying to Implement failover, I need to add filter table backuplist programmatically, this is a sample configuration:
<system.serviceModel>
<client>
<endpoint address="http://localhost:8081/Service1" binding="basicHttpBinding"
contract="*" name="ServiceOperation1" />
<endpoint address="http://localhost:8081/Service2" binding="basicHttpBinding"
contract="*" name="ServiceOperation2" />
<endpoint address="http://localhost:8081/Service3" binding="basicHttpBinding"
contract="*" name="ServiceOperation3" />
</client>
<routing>
<filters>
<filter name="MatchAllFilter" filterType="MatchAll" />
</filters>
<filterTables>
<filterTable name="RoutingTable">
<add filterName="MatchAllFilter" endpointName="ServiceOperation1" backupList="BackUps" />
</filterTable>
</filterTables>
<backupLists>
<backupList name="BackUps">
<add endpointName="ServiceOperation2"/>
<add endpointName="ServiceOperation3" />
</backupList>
</backupLists>
</routing>
<behaviors>
<serviceBehaviors>
<behavior name="">
<routing filterTableName="RoutingTable" />
</behavior>
</serviceBehaviors>
</behaviors>
<services>
<service name="System.ServiceModel.Routing.RoutingService">
<endpoint address="binary" binding="basicHttpBinding"
contract="System.ServiceModel.Routing.IRequestReplyRouter" name="VirtualEndpoint" />
<host>
<baseAddresses>
<add baseAddress="http://localhost:8080/RoutingService/Router" />
</baseAddresses>
</host>
</service>
</services>
</system.serviceModel>
I was able to add FilterTable which I found example in this question
here is my code snippet:
var routingHost = new ServiceHost(typeof(RoutingService));
var routingEp = routingHost.AddServiceEndpoint(typeof(System.ServiceModel.Routing.IRequestReplyRouter), mybinding, url);
var filterTable = new MessageFilterTable<IEnumerable<ServiceEndpoint>>();
filterTable.Add(new MatchAllMessageFilter(), new List<ServiceEndpoint>()
{
serviceoperation1Endpoint
});
routingHost.Description.Behaviors.Add(
new RoutingBehavior(new RoutingConfiguration(filterTable, false)));
routingHost.open();
so in my scenario ServiceOperation2 and ServiceOperation3 are the backup endpoints, I made lots of research I coudn't find a way to add backuplist Programmatically
any Idea how can I add backuplist to filterTable?

I ended up with this solution to dynamically generate config file
In my scenario, I load my endpoints from database and generated routing service configuration out of it,
public class MyServiceEndPoint
{
public string TypeName { get; set; }
public string Url { get; set; }
public string Name { get; set; }
}
//// generates routing service configuration section, including client enoints/filterTable/backups and routing service behavior
private void CreateRoutingConfiguration(List<MyServiceEndPoint> serviceEndpoints)
{
///// group endopints by Name, each service could have multiple endpoints ( 1 main and n backup endpoints)
var groupedEndpoitns = (from endp in serviceEndpoints
group endp by endp.Name into endpGroup
select new { ServiceName = endpGroup.Key, EndPoint = endpGroup }).ToList();
var config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
var serviceModelSectionGroup = System.ServiceModel.Configuration.ServiceModelSectionGroup.GetSectionGroup(config);
var routingSection = (RoutingSection)serviceModelSectionGroup.Sections["routing"];
var clientsection = (ClientSection)serviceModelSectionGroup.Sections["client"];
var bindingSection = (BindingsSection)serviceModelSectionGroup.Sections["bindings"];
var behaviorSection = (BehaviorsSection)serviceModelSectionGroup.Sections["behaviors"];
bindingSection.NetTcpBinding.Bindings.Clear();
clientsection.Endpoints.Clear();
var filterTable = new FilterTableEntryCollection() { Name = "RoutingTable" };
routingSection.Filters.Clear();
routingSection.FilterTables.Clear();
routingSection.BackupLists.Clear();
var nettcpBinding = new NetTcpBindingElement()
{
Name = "myTcpBinding",
TransferMode = TransferMode.Buffered,
MaxBufferSize = 2147483647,
MaxReceivedMessageSize = 2147483647,
SendTimeout = new TimeSpan(0, 10, 0),
ReceiveTimeout = new TimeSpan(0, 10, 0),
};
nettcpBinding.Security.Mode = SecurityMode.None;
bindingSection.NetTcpBinding.Bindings.Add(nettcpBinding);
foreach (var endpointGroup in groupedEndpoitns)
{
var backupListItem = new BackupEndpointCollection();
backupListItem.Name = endpointGroup.ServiceName + "Backup";
var filter = new FilterElement();
filter.Name = endpointGroup.ServiceName + "Filter";
filter.FilterType = FilterType.Custom;
filter.CustomType = "MyServiceContractMessageFilterType,asemblyName";
filter.FilterData = endpointGroup.EndPoint.FirstOrDefault().ClientTypeName;
routingSection.Filters.Add(filter);
int endpointCount = 0;
List<ChannelEndpointElement> channelEndpoints = new List<ChannelEndpointElement>();
foreach (var endpoint in endpointGroup.EndPoint)
{
endpointCount++;
var channelEndpoint = new ChannelEndpointElement();
channelEndpoint.Address = new Uri(endpoint.Url);
channelEndpoint.Binding = "netTcpBinding";
channelEndpoint.BindingConfiguration = "myTcpBinding";
channelEndpoint.Contract = "*";
channelEndpoint.Name = $"{endpoint.Name}EndPoint{endpointCount}";
clientsection.Endpoints.Add(channelEndpoint);
channelEndpoints.Add(channelEndpoint);
}
var firstChannelEndpoint = channelEndpoints.FirstOrDefault(); /// this endpoint will be selected as main endpoint
var filterTableItem = new FilterTableEntryElement();
filterTableItem.FilterName = filter.Name;
filterTableItem.EndpointName = firstChannelEndpoint.Name;
filterTableItem.BackupList = backupListItem.Name;
filterTable.Add(filterTableItem);
foreach (var backupEndpoints in channelEndpoints)
{
backupListItem.Add(new BackupEndpointElement() { EndpointName = backupEndpoints.Name });
routingSection.BackupLists.Add(backupListItem);
}
}
routingSection.FilterTables.Add(filterTable);
behaviorSection.ServiceBehaviors.Clear();
var behavior = new ServiceBehaviorElement();
behavior.Add(new RoutingExtensionElement() { FilterTableName = filterTable.Name });
behaviorSection.ServiceBehaviors.Add(behavior);
config.Save(ConfigurationSaveMode.Modified, false);
ConfigurationManager.RefreshSection("system.serviceModel/routing");
ConfigurationManager.RefreshSection("system.serviceModel/client");
ConfigurationManager.RefreshSection("system.serviceModel/behaviors");
}
so first I generated configuration file
and than create an intance of routing service like:
CreateRoutingConfiguration(serviceEndpoints);
routingHost = new ServiceHost(typeof(RoutingService));
routingHost.AddServiceEndpoint(typeof(System.ServiceModel.Routing.IRequestReplyRouter), mybinding, $"net.tcp://localhost:6000/Router");
routingHost.Open();
hope it will be helpful for someone

I've never done this, but a quick look through the documentation on MSDN for Message Filters shows that alternative backup endpoints are configured via the FilterTableElementEntry class (BackupList property).
A filter table is a named collection of FilterTableEntryElement
objects that define the association between a filter, a primary
destination endpoint, and a list of alternative backup endpoints. The
filter table entries also allow you to specify an optional priority
for each filter condition.
Check for Filter Table and BackupList on Google, and you'll come across examples of usage of this. This example looks particularly promising with plenty of comments describing the steps.

Collection Already Contains Address with scheme net.tcp

I have a persistent problem, which I have been researching for a couple days now. I am working on transitioning a WCF service to use a dynamic port, a need has finally come into scope for this. I am most of the way there; however, I am getting the error:
System.ArgumentException: This collection already contains an address with scheme net.tcp.
I have searched online for an answer, and have only found solutions to if the scheme was http. I will provide some code, to aid those who desire to help me and others with this problem.
I have a services.development.config file. We have the app.config file separated for specific reasons within the organization.
<service name="MLITS.Pulse.Pulse" behaviorConfiguration="PulseCSBehavior">
<host>
<baseAddresses>
<add baseAddress="net.tcp://localhost:14613/PulseService"/>
</baseAddresses>
</host>
<endpoint name="NetTcpEndPoint"
address=""
binding="netTcpBinding"
contract="MLITS.Pulse.IPulse" />
<endpoint name="NetTcpMetadataPoint"
address="mex"
binding="mexTcpBinding"
contract="IMetadataExchange" />
We also have the endpoint address in a client.development.config file.
<endpoint address="net.tcp://localhost:14613/PulseService" binding="netTcpBinding"
bindingConfiguration="NetTcpEndPoint" contract="PulseService.IPulse" name="NetTcpEndPoint" />
Now it is my understanding with the method I'm using, I am able to keep the specific port number specified here, and later change it. Now the way I'm changing the port number is adding the session id to the base port number (which would be the 14613). The following code is the method that does just that.
public static void DynamicAddress()
{
int sessionIdentification = 0;
int portNumber = 0;
int newPort = 0;
string uriString = string.Empty;
sessionIdentification = Process.GetCurrentProcess().SessionId;
portNumber = 14613;
newPort = portNumber + sessionIdentification;
uriString = "net.tcp://localhost:" + newPort + "/PulseService";
//seperate the port from the rest of the service
//add the session id to the port
//put the address back together and return it
Uri uri = new Uri(uriString);
ServiceHost objServiceHost = new ServiceHost(typeof(Pulse), uri);
}
The error appears when we try and process the ServiceHost line. My question is: How do I resolve this, for it to function correctly?
Keep in mind, I have tried commenting out the base addresses in the services.development.config file, as well as the endpoint address in the client.development.config file. When doing this I have ran into other issues that were because I've commented the address out.

I have resolved the issue I was having in regards to this question. Instead of trying to assign the service host with another URI, I had to first clear the Endpoints and then add my new service endpoint. The only changes I made were to the DynamicPort method. Code Follows:
public static void DynamicAddress(
{
int sessionIdentification = 0;
int portNumber = 0;
int newPort = 0;
string uriString = string.Empty;
sessionIdentification = Process.GetCurrentProcess().SessionId;
portNumber = 14613;
newPort = portNumber + sessionIdentification;
uriString = "net.tcp://localhost:" + newPort + "/PulseService";
Uri uri = new Uri(uriString);
ServiceHost objServiceHost = new ServiceHost(typeof(Pulse));
objServiceHost.Description.Endpoints.Clear();
objServiceHost.AddServiceEndpoint(typeof(Pulse), new NetTcpBinding(), uri);
}

Changing ServiceHost EndPoint Address at Runtime C#

I'm busy writing a file server/client tool that basically uses a hosted Service to send and receive data to and from the server. Since this solution will be used by many different people, its not really advisable to have them go and edit the App.Config file for their setup. What I would like to do is change this at runtime so that the user(s) have full control over the settings to use. So, this is my App.Config file:
<system.serviceModel>
<services>
<service name="FI.ProBooks.FileSystem.FileRepositoryService">
<endpoint name="" binding="netTcpBinding"
address="net.tcp://localhost:5000"
contract="FI.ProBooks.FileSystem.IFileRepositoryService"
bindingConfiguration="customTcpBinding" />
</service>
</services>
<bindings>
<netTcpBinding>
<binding name="customTcpBinding" transferMode="Streamed" maxReceivedMessageSize="20480000" />
</netTcpBinding>
</bindings>
</system.serviceModel>
What I would like to do is to change only the address (in this example, net.tcp://localhost:5000) when the application is executed. So I must be able to read the current value and display that to the user, and then take their input and save it back into that field.

The test below may help you. Essentially the steps are
Instantiate an instance of the host that reads the configuration from the .config file;
Create a new instance of EndpointAddress using the same configuration as the old one, but changing the uri and assign it to the Address property of your ServiceEndpoint.
[TestMethod]
public void ChangeEndpointAddressAtRuntime()
{
var host = new ServiceHost(typeof(FileRepositoryService));
var serviceEndpoint = host.Description.Endpoints.First(e => e.Contract.ContractType == typeof (IFileRepositoryService));
var oldAddress = serviceEndpoint.Address;
Console.WriteLine("Curent Address: {0}", oldAddress.Uri);
var newAddress = "net.tcp://localhost:5001";
Console.WriteLine("New Address: {0}", newAddress);
serviceEndpoint.Address = new EndpointAddress(new Uri(newAddress), oldAddress.Identity, oldAddress.Headers);
Task.Factory.StartNew(() => host.Open());
var channelFactory = new ChannelFactory<IFileRepositoryService>(new NetTcpBinding("customTcpBinding"), new EndpointAddress(newAddress));
var channel = channelFactory.CreateChannel();
channel.Method();
(channel as ICommunicationObject).Close();
channelFactory = new ChannelFactory<IFileRepositoryService>(new NetTcpBinding("customTcpBinding"), oldAddress);
channel = channelFactory.CreateChannel();
bool failedWithOldAddress = false;
try
{
channel.Method();
}
catch (Exception e)
{
failedWithOldAddress = true;
}
(channel as ICommunicationObject).Close();
Assert.IsTrue(failedWithOldAddress);
}

you can create the service instance providing a configuration name and endpoint. So you can use;
EndpointAddress endpoint = new EndpointAddress(serviceUri);
var client= new MyServiceClient(endpointConfigurationName,endpoint )
look at msdn article.

WCF Configuration enhancement

WCF Configuration Enhancement
Background:
In app.config or web.config one may define a config entry in:
<appSettings>...</appSettings>
like so:
<add key="MyKey" value="%SomeEnvironmentVariable%"/>
Thereafter in order to retrieve the value associated with MyKey one may employ the following two lines of code:
string raw = ConfigurationManager.AppSettings[“MyKey”];
string cooked = (raw == null) ? null : Environment.ExpandEnvironmentVariables(raw);
Question:
Is there a way to do the same with the WCF service configuration, for example:
<system.serviceModel>
. . .
<services>
<service name="..." ...>
. . .
<endpoint
address="%MyEndPointAddress%" ... />
. . .
</service>
</services>
</system.serviceModel>
Any knowledge will be highly appreciated.
--Avi

To change endpoint address you will need to know EndPointName and ContractName. This values are found in your config file inside WCF configuration. Then you can use following code:
void SetNewEndpointAddress(string endpointName, string contractName, string newValue)
{
bool settingsFound = false;
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
ClientSection section = config.GetSection("system.serviceModel/client") as ClientSection;
foreach (ChannelEndpointElement ep in section.Endpoints)
{
if (ep.Name == endpointName && ep.Contract == contractName)
{
settingsFound = true;
ep.Address = new Uri(newValue);
config.Save(ConfigurationSaveMode.Full);
}
}
if (!settingsFound)
{
throw new Exception(string.Format("Settings for Endpoint '{0}' and Contract '{1}' was not found!", endpointName, contractName));
}
}
Happy coding!