PA_RecordsInSelection

version 2003

PA_RecordsInSelection (tableNum) → long

The command PA_RecordsInSelection returns the number of records in the current selection of the Table number tableNum .

A 4D plug-in most typically uses PA_RecordsInSelection after a query to determine the number of records return by the search command.

This routine does not use virtual structure

Walking through a selection (no error checking here):

   void DoSomethingWithTheSelection (short tableNum)
   {
      register long   i;
      
   // Here, we do not want to activate the relations
      PA_AutomaticRelation(0, 0);
   // Loop for each record in the selection
      for(i = 1; i <= PA_RecordsInSelection(tableNum); i++)
      {
         PA_Yield();   // Give time to other tasks
   // load record i of the selection
         PA_GoToSelectedRecord(tableNum, i);
      /*
         Do something with the record.
         PA_SaveRecord can be called here.
      */
      }
   }

PA_GotoSelectedRecord .

Use PA_GetLastError to see if an error occurred (invalid table number)