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Asked: 2026-05-13T07:11:10+00:00

I have a WPF application using service references to a WCF service. When doing

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I have a WPF application using service references to a WCF service. When doing updates on the service I need to update the service reference, so I right click it and hit “Update Service Reference”.

Doing this results in duplicate entries in the App.config file of the client project.

  • It duplicates a binding under wsHttpBinding – adding an equal entry with postfix number in name: WSHttpBinding_ISomeService --> WSHttpBinding_ISomeService1.
  • And it duplicates the endpoint definition under binding such that there is one endpoint for each wsHttpBinding. This too is a pure duplicate except of the name.

Why does it duplicate the config? Isn’t it just supposed to update the name? And how can I make it stop?

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1 Answer

  1. Editorial Team

    Which version of Visual Studio are you using? This is a known bug, which has been fixed in VS2010. Check out this link!

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