Set a minimum date in a date field in dependence of another date field

Hi Daniel,

I tried to format the “to” date in dependence of the from date field. Therefore I used the “minDate” option from the date picker options and hoped that I could get and set the date from the “from” field as a new date in the value field.

I think this can be done only with custom JavaScript.

Here are some steps that I'm thinking:

First, add the following code to functions.php file, this code enqueues a custom JS file:

add_action( 'rwmb_enqueue_scripts', function() {
    wp_enqueue_script( 'custom-code', get_template_directory_uri() . '/custom.js', ['jquery'], '', true );
} );

Second, create a file custom.js and put it in your theme. And put the following code in that file:

$from = $( '#from' );
$to = $( '#to' );
$from.on( 'change', function() {
    $to.datepicker( "option", "minDate", $from.val() );
} );

Here I assume your fields has ID from and to. You might want to change it to something else if you have different IDs.