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The MapHelper Class

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By using the MapHelper class, you can perform transformations directly without using the transformation Web service. The MapHelper class is part of the project named ESB.Transform.csproj, located in the \Source\Core\Source\ESB.Transform** **folder. The ESB Guidance Core installer installs and registers the MapHelper class in the global assembly cache.

The MapHelper class exposes two public methods:

  • TransformMessage. This method takes as parameters a String containing the message to transform and a String containing the fully qualified name of a map deployed within BizTalk. The method returns a String containing the transformed document.
  • TransformMessageStream. This method takes as parameters a Stream containing the message to transform and a String containing the fully qualified name of a map deployed within BizTalk. The method returns a String containing the transformed document.