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liliconcom

How to apply "Max Selected" to a check box list

Hi, Is it possible to apply the "Max Selected" filter to limit the number of Check Boxes that a User can select?

I will appreciate your suggestions.

Names Default To Here( 1 );
New Window( "Example",
 cb = Check Box(
  {"One", "Two", "Three"}, Max Selected(2),
  Print(
   "Selected: " ||
   Concat Items( cb << Get Selected(), ", " )
  )
 )
);

ScriptingRe: How to apply "Max Selected" to a check box list

There is not a Max Selected message that can be set, however one can write a script to do it.  Here is my way of handling it

Names Default To Here( 1 );
New Window( "Example",
 cb = Check Box(
  {"One", "Two", "Three"},
  curSelected = cb << get selected;
  If( N Items( curSelected ) > 2, 
   // Determine the one just selected
   For( i = 1, i <= N Items( cb << get items ), i++,
    If(
     Contains( curSelected, (cb << get items)[i] ) > 0 & 
      Contains( prevSelected, (cb << get items)[i] ) == 0,
      dialog("Too many selections");
      cb << set(i,0);
      Break();
    )
   );
  ,
   prevSelected = curSelected;
  );
 )
);

Re: How to apply "Max Selected" to a check box list

Thanks @txnelson, I was afraid that the answer was going to be: No. Very nice your work-around, I will try to implement it in my code.