get Alert when max characters reached

New Here ,
Aug 22, 2018 Aug 22, 2018

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I have set a character limit for a Textfield.

i try to show the remaining characters without success.

alternatively i try to show an error message when the limit is reached

var laenge = this.getField("Overline").value;

event.rc = true;

if (laenge > 10)

  {

     app.alert("Max. 40 characters incl. spaces");

     event.rc = false;

  }

else

{

    event.target.textColor = color.black;

}

Is there a way to display the remaining characters?

if not, what am I doing wrong with the code here?

TOPICS
Acrobat SDK and JavaScript, Windows

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correct answers 1 Correct Answer

LEGEND , Aug 22, 2018 Aug 22, 2018
A more complex way of performing this task:Countdown Maximum Length Input​The approach used by D.P. Story is to use the "AFMergeChange()" function to obtain the length of the form field being filled in dynamically.

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Adobe Community Professional ,
Aug 22, 2018 Aug 22, 2018

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Try this:

var laenge = this.getField("Overline").value.length;

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New Here ,
Aug 22, 2018 Aug 22, 2018

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unfortunately did not work.

i also try var laenge = this.getField("Overline").value.toString().length; without success.

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Adobe Community Professional ,
Aug 22, 2018 Aug 22, 2018

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Use following lines:

console.show();

var laenge = event.value.length;

console.println("laenge: " + laenge);

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Most Valuable Participant ,
Aug 22, 2018 Aug 22, 2018

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Where did you place this code? Under what event?

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LEGEND ,
Aug 22, 2018 Aug 22, 2018

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A more complex way of performing this task:

Countdown Maximum Length Input

The approach used by D.P. Story is to use the "AFMergeChange()" function to obtain the length of the form field being filled in dynamically.

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Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
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