PA_NextRecord

version 2003

PA_NextRecord (tableNum)

The command PA_NextRecord moves the current record pointer to the record following the current record in the table number tableNum . After the 4D plug-in calls PA_NextRecord it should use PA_EndSelection to determine if the current record pointer has passed the end of the selection for the table passed into tableNum .

Before calling PA_NextRecord the 4D plug-in should indicate if the many-to-one and one-to many relations should be activated by using PA_UseAutomaticRelations .

This routine does not use virtual structure

Do something with a selection of records.

   void DoSomethingWithTheSelection (short tableNum)
   {
   // we do not want to activate the relations
      PA_AutomaticRelation(0, 0);
   // Start to the first record of the selection
      PA_FirstRecord(tableNum);
   // While the end of selection not reached...
      while(!PA_EndSelection(tableNum))
      {
         PA_Yield();   // Give time to other tasks
      /*
         ...do something with the record (PA_SaveRecord can be called here).
      */
      // Time to go to the next record
         PA_NextRecord(tableNum);
      }
   }

PA_EndSelection , PA_FirstRecord , PA_PreviousRecord , PA_UseAutomaticRelations .

Use PA_GetLastError to see if an error occurred

The current record is changed to the next one in the selection, or none if PA_NextRecord is called for the last record ( PA_EndSelection returns 1).