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equivalent checkboxes

So I have some checkboxes that are equivalent.  Meaning (in this case) that 1=2=3.  I'm trying to make it when you check/uncheck any of 1 2 or 3, it will check/uncheck the others.  I can get it to set them, but once I set them.  There's not an obvious way to check which one was unchecked.  Because of the constraint I have where everything has to be local in the funciton box.  So I can't have a Last_selected variable or anythign like that.  

Here's what I've tried so far.  

 

new window("Test", 
 cb = checkbox({"1", "2", "3", "4", "5"});
);
eq = Associative Array({{1, {2, 3}}, {2, {1, 3}}, {3, {1, 2}}});
cb <<SET function=""></SET>

Re: equivalent checkboxes

Still chasing my original idea.  Simplifies some things but adds to the complexity of the checkbox handlers, if you have a lot of them.

 

 Names Default to here(1);
new window("Test", 
 lineup box(ncol(2),
  cb1 = checkbox(""),
  tb1 = textbox("First Line\!NSecond Line\!NThird Line"),
  cb4 = checkbox(""),
  tb4 = textbox("Four"),
  cb5 = checkbox(""),
  tb5 = textbox("Five"),
 )
);

 

Re: equivalent checkboxes

Thanks @Craige_Hales.  That's exactly what I needed.  

 

For posterity, this does what I'm trying to do.  

 

Names Default to here(1);
new window("Test", 
 cb = checkbox({"1", "2", "3", "4", "5"});
);
eq = Associative Array({{1, {2, 3}}, {2, {1, 3}}, {3, {1, 2}}});
cb <<SET function=""></SET>

Re: equivalent checkboxes

 

f = Function( {this, which},
 {default local},
 n = N Items( this << getitems );
 For( i = 1, i <= n, i++,
  this << set( i, i != which )
 );
 (this << sib) << color( which );
);

New Window( "checkbox callback",
 H List Box(
  V List Box(
   Check Box( Words( "1 2 3 4 5 6 7 8 9" ), <<SETFUNCTION></SETFUNCTION>

Checking a box makes all the others checked

Re: equivalent checkboxes

Because in reality, it would be more like

1 - description of 1, 2-description of 2, 3-description of 3

4-description of 4

5-description of 5

 

and there a lot of these boxes on the page and it gets VERY cluttered very quickly.  

and sometimes there are 7 things that are equivalent

 

That as well as the fact as the customer said do it this way.  

Re: equivalent checkboxes

From a user interface standpoint, since 1, 2 and 3 are the same, why don't you modify your screen to show them combined with one checkbox?  I.e.

 

[  ] 1, 2, 3

[  ] 4

[  ] 5