get Alert when max characters reached

[ayr4n]

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?

[Bernd Alheit]

Try this:

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

[ayr4n]

unfortunately did not work.

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

[Bernd Alheit]

Use following lines:

console.show();

var laenge = event.value.length;

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

[try67]

Where did you place this code? Under what event?

[gkaiseril · Accepted solution]

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.