ExtendScript edittext limit number of characters

Forum|Forum|5 years ago
July 14, 2020
2 replies
1502 views

Is there an attribute for edittext objects that limits the amount of digits I can write? I've tried "characters", "maxsize" and "maxlength", but thats not working. I know I could use a onChange function to delete characters exceeding my limit, but isn't there an attribute to prevent it beforehand?

I have Input fields for seconds & fps and want to reduce the propabillity of user-errors :

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Correct answer Tomas Sinkunas

Unfortunately, not.

The `characters` parameter simply sets the horizontal size of the EditText element but does not limit the string length inside it.

Your best bet here would be to use `onChanging` attribute to trim exceeding characters.

Cheers.

Corvinus CoraxAuthor

Inspiring

If anyone else has this problem, here is how I solved it with onChanging, as Tomas suggested. Simple but useful:

myEditText.onChanging = function(){limitCharacters(this,2);}

function limitCharacters(myInput,myLimit){
myInput.text = myInput.text.substr(0,myLimit);
}

H

Hanan Afif

Participant

hi @Corvinus Corax, thanks for sharing, i have question, i tried your script, it worked, but it didn't stop user from inputing character? is just make my edittext print last 2 character that i input?

Corvinus CoraxAuthor

Inspiring

Just wrote a quick test to confirm, and yes, you are right. The field accepts the first input as first digit, then the second as second and the third as first again, fourth as second and so on...

I think the fastest way to prevent a user to input more than those first two characters would be to lock the editfield after 2 characters are entered. That would#Ve been no suitable option for me, as I wanted my system editable at all times, but it would stop the user from inputing more than 2 chars as you suggested.

So youd' have to count in a onChangeFunction and if it reaches 2 set the enabled flag for the edittext to false.

Hope that helps with your specific problem.

Tomas SinkunasCorrect answer

Legend

Unfortunately, not.

The `characters` parameter simply sets the horizontal size of the EditText element but does not limit the string length inside it.

Your best bet here would be to use `onChanging` attribute to trim exceeding characters.

Cheers.

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