Script to limit max size of string field.

[Ian46]

Hi,

I have many string fields set to 400 characters. This allows the boxes to be the right size. However I need to stop users putting in too much data. How best to do this with a script?

I tried an On Change Client script, but it didn't work:

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
   if (isLoading || newValue === '') 
   {
      return;
   }
   if(newValue.length>4000) 
   {
      g_form.showErrorBox("your_field","You cannot enter more than 4000 characters",true);
   }
}

Can anyone suggest the best way to achieve this?

Thanks Ian

[Harsh Vardhan]

Sample code:

var arr = ['description','short_description']; // add your field name in array
	for(var i = 0; i <arr.length ; i ++){
	if(g_form.getValue(arr[i]).length > 4000){
        alert('hey its more than 4000');
return false;

            }
	}

Note: Add field name in an array. 

[Ankur Bawiskar]

Hi Ian,

As suggested you would require onSubmit to stop user from submitting the form.

Also for multiple fields you can use this

function onSubmit(){

var finalArr = [];
var arr = ['description','short_description']; // add your field names in array

for(var i=0;i<arr.length;i++){
if(g_form.getValue(arr[i]).toString().length > 4000){
finalArr.push(arr[i].toString());
}
}

if(finalArr.length > 0){
alert('You have crossed the character count for these fields ' + finalArr);
return false;
}
}

Regards
Ankur

[Hitoshi Ozawa]

Since fields probably have different max length, fixed the code. In the following code, field name "description" has max length of 400 characters while field short_description has max length of 100.

function onSubmit() {
    var messageArray = [];
    var fieldArray = [
		{'name': 'description', length: 400},
        {'name': 'short_description', length: 100}
    ]; // add field names and length

    for (var i = 0; i < fieldArray.length; i++) {
        if (g_form.getValue(fieldArray[i].name).length > fieldArray[i].length) {
            messageArray.push('max length of field ' + fieldArray[i].name + ' is ' + fieldArray[i].length + '\n');
        }
    }

    if (messageArray.length > 0) {
        g_form.addErrorMessage('You have crossed the character count for these fields.\n' + messageArray);
        return false;
    }
}

[Ian46]

Yes they would have different max lengths, so thanks for the example!

[Hitoshi Ozawa]

The simplest way is to define a Variable Validation Regex and use it w

Variable specification

If using client script, there's a need to create a onChange script and onSubmit script to check the length.

onClient script

function onChange(control, oldValue, newValue, isLoading) {
   if (isLoading || newValue == '') {
      return;
   }
   if(newValue.length > 4000) {
      g_form.showErrorBox("field_1","You cannot enter more than 4000 characters",true);
   }
}

function onSubmit() {
   if(g_form.getValue('field_1').length > 4000) {
      g_form.addErrorMessage("You cannot enter more than 4000 characters",true);
      return false;
   }
}

onSubmit script