set field max length , but in form layout , it still can input a number of data

[zhihong]

hi experts,

I set "Date" max length is 4, but in form layout it can input 15 ,why?

[zhihong]

this can pop up an error message and still can input data when its length>4  , but I want make it  not edit when it length>4, how to achieve?

[Harsh Vardhan]

you can set g_form.setReadOnly('field name',true);

[Harsh Vardhan]

eg:

if(g_form.getValue('u_date')> 4){
g_form.setReadOnly('u_date',true);
}

[zhihong]

var date = g_form.getValue('u_date');  
  if(date.toString().length >4) {
    g_form.setReadOnly('u_date',true);
 
 }

it didn't work

[Mark Roethof]

The code Harshvardhan provided is for making the variable readonly. While you are after restricting the input.

Again: not possible. Have a look at the workarounds that give an error message + maybe add g_form.clearValue('u_date');

If my answer helped you in any way, please then mark it as helpful.

Kind regards,
Mark

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