Updating the TypedXmlDocument in BRE from a .NET Static Method (to add a new node)

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    • July 25, 2008 at 10:41 AM #20239
      community-content

         I’ve not worked much with the TypedXmlDocument yet.
        I have a C# unit tester calling a C# static method.  When I put “ref” on the TypedXmlDocument it works fine.
        I’m not sure why I lose my changed XmlDocument when I do not put “ref”.  But when trying to test in the Business Rule Composer, it looks like the BRE does not support “ref”, because when I tried to drop my schema root element there, it gave an error.

        So in my method, I load the outerxml of the TypedXmlDocument into a regular XmlDocument, do my manipulation, and then convert it back as follows:

         

         

        public static void AddItineraryItem(TypedXmlDocument TMXMLDocInTyped, string  stepName)
        {
        …misc code omitted here…
        TypedXmlDocument docOut = new TypedXmlDocument(TMXMLDocInTyped.DocumentType, TMXMLDocIn);
        TMXMLDocInTyped = docOut;          // overlay the input typedXmlDoc
        return;
        }

        I also noted there is a registry setting that I’ll probably have to change to be able to call a static method, but I don’t think that is related to my issue above.  Right now, my goal is to get the C# to C# working without using REF.

        Thanks,
        Neal

      • July 25, 2008 at 10:54 AM #20240
        community-content

           I’m pretty sure what I need to do is update the TypedXmlDocument with my new xml without constructing a new TypedXmlDocument.

          I proved that if you construct a new object, it won’t pass back with this code:

           

           

           

           

           

           

           

           

           

           

           

           

           

           

           

           

           

           

          namespace

           

          TestPassObjectCons

          {

           

           

          class Program

          {

           

           

          static void Main(string[] args)

          {

           

           

          employee objEmployee = new employee();

          objEmployee.lastname =

          “Walters”;
          objEmployee.firstname =           “Neal”;

           

           

          subs.mysub(objEmployee);

           

           

          Console.WriteLine(“Result lastname=” + objEmployee.lastname);

           

           

          Console.ReadLine();

          }

          }

           

           

          public class employee

          {

           

           

          public string lastname;

           

           

          public string firstname;

          }

           

           

          public class subs

          {

           

           

          public static void mysub(employee passEmp)

          {

           

           

          //passEmp.lastname = “Something else”;  // (this sends back the changed value)

           

           

          employee newEmployee = new employee();

          newEmployee.lastname =

          “Something else”;

          newEmployee.firstname =

          “John”;

          passEmp = newEmployee;  // this does not send back the changed value

           

           

          return;

          }

          }
          }

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