BuildingCoder.CmdNamedGuidStorage.Execute C# (CSharp) Method

        public Result Execute(
            ExternalCommandData commandData,
            ref string message,
            ElementSet elements)
        {
            UIApplication uiapp = commandData.Application;
              UIDocument uidoc = uiapp.ActiveUIDocument;
              Document doc = uidoc.Document;
              Result rslt = Result.Failed;

              string name = "TrackChanges_project_identifier";
              Guid named_guid;

              bool rc = JtNamedGuidStorage.Get( doc,
            name, out named_guid, false );

              if( rc )
              {
            Util.InfoMsg( string.Format(
              "This document already has a project "
              + "identifier: {0} = {1}",
              name, named_guid.ToString() ) );

            rslt = Result.Succeeded;
              }
              else
              {
            rc = JtNamedGuidStorage.Get( doc,
              name, out named_guid, true );

            if( rc )
            {
              Util.InfoMsg( string.Format(
            "Created a new project identifier "
            + "for this document: {0} = {1}",
            name, named_guid.ToString() ) );

              rslt = Result.Succeeded;
            }
            else
            {
              Util.ErrorMsg( "Something went wrong" );
            }
              }
              return rslt;
        }