AX / Dynamics 365 For Finance and Operations blog

With Runbuf() you can execute an external x++ code

To show how it works, I am going to use this function to execute code read from an external file. In this example I want to retrieve the Customer Name from a given Customer Account number.

First create an external file in c:\temp\ and call it “findCustomer.xpp” and insert this code inside :

CustTable findCustomer(CustAccount _accountNum)
{
    return CustTable::find(_accountNum);
}

Then create this job and execute it.

static void ExecuteCodeFromFile(Args _args)
{
   #File
   AsciiIo asciiIo = new AsciiIo(“c:\\temp\\findCustomer.xpp”,#io_read);
   XppCompiler xppCompiler = new XppCompiler();
   Source source;
   str line;
   CustTable custTable;

   if (asciiIo)
   {
      asciiIo.inFieldDelimiter(#delimiterEnter);
      [line] = asciiIo.read();
      while (asciiIo.status() == IO_Status::Ok)
      {
          source += #delimiterEnter;
          source += line;
          [line] = asciiIo.read();
      }
      if (!xppCompiler.compile(source))
          error (xppCompiler.errorText());

      custTable = runbuf(source,'4000');
      print CustTable.Name;
   }
   else
   {
      print “Could not open file”;
   }   
pause;
}

What’s happened?

First the file c:\temp\findCustomer.xpp is read into source.

Source is then compiled and if that goes ok it is executed.

‘4000’ is passed as a parameter simply by adding it to the runbuf() call.

I had trouble getting code compiled that I had written using notepad. As it turns out, the compiler does not accept the tab character. So if you are going to try this out, watch out for that.