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MetadataResolver Class

Retrieves and imports metadata as ServiceEndpoint objects.

Namespace:  System.ServiceModel.Description
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public static class MetadataResolver

Use the MetadataResolver class to quickly import endpoints for a service from metadata. This class downloads and converts metadata into ServiceEndpoint objects. To download metadata and process that information as a System.ServiceModel.Description.MetadataSet, see System.ServiceModel.Description.MetadataExchangeClient.

The following code example shows the use of the MetadataResolver class to return metadata as a collection of ServiceEndpoint objects that are then used to connect to a service instance.

// Get the endpoints for such a service
ServiceEndpointCollection endpoints = MetadataResolver.Resolve(typeof(SampleServiceClient),metaAddress);
Console.WriteLine("Trying all available WS-Transfer metadata endpoints...");

foreach (ServiceEndpoint point in endpoints)
{
  if (point != null)
  {
    // Create a new wcfClient using retrieved endpoints.
    wcfClient = new SampleServiceClient(point.Binding, point.Address);
    Console.WriteLine(
      wcfClient.SampleMethod("Client used the "
      + point.Address.ToString()
      + " address.")
    );
    wcfClient.Close();
  }
}

The following code example shows the use of the MetadataResolver to download and return metadata as a collection of ServiceEndpoint objects using an HTTP GET request rather than WS-Transfer.

// Get the endpoints for such a service using Http/Get request
endpoints = MetadataResolver.Resolve(typeof(SampleServiceClient),httpGetMetaAddress.Uri, MetadataExchangeClientMode.HttpGet);
Client.WriteParameters(endpoints);
ISampleService serviceChannel;
Console.WriteLine(
  "\r\nTrying all endpoints from HTTP/Get and with direct service channels...");

foreach (ServiceEndpoint point in endpoints)
{
  if (point != null)
  {
    ChannelFactory<ISampleService> factory = new ChannelFactory<ISampleService>(point.Binding);
    factory.Endpoint.Address = point.Address;
    serviceChannel = factory.CreateChannel();
    Console.WriteLine("Client used the " + point.Address.ToString() + " address.");
    Console.WriteLine(
      serviceChannel.SampleMethod(
        "Client used the " + point.Address.ToString() + " address."
      )
    );
    factory.Close();
  }
}

System.Object
  System.ServiceModel.Description.MetadataResolver

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

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