My checkbox does not correctly return TRUE/FALSE status

ingezone

https://live.datatables.net/razujato/1/edit

Debugger code (debug.datatables.net):
editor.on('preSubmit', function (e, json, data, action) {
let opt = this.field('options');
console.log(opt.val()[0]);
});

Error messages shown: undefined value.

Description of problem:
Once in the editor modal, when the checkbox is checked and then I press the Refresh button, the code returns "true". BUT when the checkbox is NOT checked and I press the Refresh button, the code returns 'undefined'

How do I get the code to return the value 'false' instead of 'undefined'

Regards!

allan

Hi,

You need to use the unselectedValue option of checkbox if you want it to have a value when no checkbox is selected. You are using it more as a radio box there, which is why this is required.

Allan

ingezone

Hi

Thanks for your response, I got it working by returning the TRUE/FALSE value, using the following code snippet.

{ label: "Mostrar opciones:", name: "options", type: "checkbox", //separator: '|', options: [{ label: '', value: true }], unselectedValue: false, def: false }

How do I make the delivered value be of type boolean? Currently the value is of type Array and the result is [false] or [true], otherwise if I enable the { separator: '|' }, the result is type string "false" or "true".

You can see my test code here: https://live.datatables.net/razujato/2/edit

Regards!

allan

How do I make the delivered value be of type boolean

Client-side use fields.getFormatter to cast the value. The reason for this is that the value is read from the input element which is always a string.

At the server-side you might need to cast it there if you are expecting a true Boolean there. Http parameters are type-less unfortunately.

Allan

ingezone

Hi Allan

I thank you very much for your answers, they were very accurate and I was able to solve it.

Regards!