Predictive Text...

[FourthWorld]

...does not need a backSpace key handler.

Then what invokes it in response to the input text changing from the user hitting the Backspace key?

[dunbarx]

Richard.

The backSpace key simply changes the contents of the entry field, just like pressing, say "X", which adds that char to the mix. Every keypress invokes the resident handler, and the current contents of the entry field is used to collect matches from the master list.

Craig

[richmond62]

Well, my solution maybe clunky (and Klaus is always alarmingly eager to squash my efforts), but it was me who produced a solution first, and I do believe that without a backspaceKey handler things might get slightly problematic.

[richmond62]

Collecting matches?

I have heard of people collecting those match books from restaurants and match boxes: but matches, surely not.

[dunbarx]

Richmond,

I don't think, knowing Klaus, it is personal.

I am fond of saying that we all race to answer here in this forum. A race is to some degree a competition, after all, but I think it is all in good fun.

Matches? You are rarely silly, but I am happy to see it from you.

Craig

[dunbarx]

And another thing. The filter version outputs duplicates for some reason. Mine does not, so there.

Craig

[richmond62]

Andanotherthing.jpg (31.22 KiB) Viewed 5084 times

-
Yes, well . . .

I guess the cork in my . . . slipped a bit.

Oh, and by-ther-way: I picked that book up in a third-hand sort of way in a second-hand clothes shop in Bulgaria where the price was by the kilogramme: so it was about 50 Euro cents.

A pale shadow . . . a pale shadow.

Never ceases to surprise me when perfectly decent authors who have already written readable books attempt pastiches of dead authors' stuff: pace the 57 writers who have tried their sweaty paws at James Bond novels . . .
-

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Kingsley Amis degrading himself (perhaps he knew it so adopted a fake name).

Even at 15 that did not fool me for a minute.

[dunbarx]

Richmond

I never heard of this. Is it just another entry into what Adams called "the ever increasingly misnamed Hitchhikers...trilogy"?

Craig

[richmond62]

It is a pastiche written by an Irish bloke quite a long time after Douglas Adams was dead.

[cmhjon]

Hi all,

First, thanks to everyone who has responded and provided code and/or sample stacks. Between everything, I…think/hope…I have managed to combine elements of the provided stacks into a relatively completed stack which seems to, for the most part work. Here is my adapted code:

Code: Select all

on keyDown KP
   put KP after me
   put me into tLookupString
   if tLookupString is empty then
      put empty into field "Results"
      hide field "Results"
      exit to top
   else
      put field 1 into tList
      filter tList with (tLookupString & "*")
      if tList = EMPTY then
         beep
         put empty into field "Results"
         hide field "Results"
         exit to top
      end if
      put tList into field "Results"
      show field "Results"
   end if
end keyDown

on backspaceKey
   delete the last char of me
   send ("keydown" & "") to me
   if me = empty then
      hide field "Results"
   end if
end backspaceKey

One issue (and there may be others that I haven’t discovered yet) is that suppose the customer name field is populated. If I highlight all the text in the field and press the backspace key, instead of deleting the text is removes the last character which based on the above code would be expected behavior. So, if I simply want to remove all the text from the field, how could this be trapped for?

Thank you again and best regards,
Jon

[dunbarx]

cmhjon.

If you hilite all, or any block of text in a field and hit backspace, all the hilted text is deleted. That is normal behavior on all platforms I believe.

Are you really seeing what you say you are???

Craig

[Klaus]

Hi Craig,

the script does this, but not what the TS and user might exspect:

Code: Select all

on backspaceKey
   ## SIC!
   delete the last char of me
...

This will work as exspected:

Code: Select all

on backspaceKey
   if the selectedtext of me <> EMPTY then
      pass backspaceKey
   end if
   delete the last char of me
...

Best

Klaus

[dunbarx]

Maybe I misread your last post.

Isn't the "customer name field" the field with all your customer data? You never want to delete anything there when using your filtering routine, right?

Or is it the entry field that you want to empty with backSpace. If so then you need to add this to your script:

Code: Select all

on rawkeyDown tkey
   if tkey = 65288 and the optionkey is down then put "" into me
   pass rawkeyDown
end rawkeyDown

You must press the optionKey along with the backspace key in order to make this work. The reason is that the "keyDown" message does not recognize the backSpace key, only "rawKeyDown" does. And therefore you need to identify the action of pressing backSpace to do what you want with the optionKey modifier. You can select any of the other modifier keys if you would rather.

Craig

[dunbarx]

Klaus.

I got the impression that the OP wanted a way to clear the whole data entry field in one key press, and not have to press backSpace several times to do so. Of course a button would do the job just as well.

Or neither of us yet knows exactly what he wants.

cmhjon?

Craig

[Klaus]

Hi Craig,

cmhjon wrote:

If I highlight all the text in the field and press the backspace key, instead of deleting the text is removes the last character which based on the above code would be expected behavior. So, if I simply want to remove all the text from the field, how could this be trapped for?

I understand this like cmhjon wants to have the "usual/normal" behavior of the backspacekey in a field with all of its text selected.
That is what my little addition does.

@Richmond
What Craig said, it is nothing personal Cpt. Cumbersome!
Not sure this is the correct translation of the german saying***, but: Teasing is a sign of affection.
***Was sich liebt, das neckt sich.

Best

Klaus