How to clear select lookup box variable value?

Lisa Goldman · ‎03-05-2024

Hello,

I have the following two variables, reference and lookup select box. The variables are getting data from the same table: u_part_number

On the "lookup select box", I am using Auto-Populate to fill in the Part Id variable.

How to you clear Part Id variable on Part number changes.

Here is the onChange script I have tired, but it did not work. Please help. Thank you

Harsh Vardhan · ‎03-06-2024

@Lisa Goldman Strange , but anyways you can give another try.

Set 'Include none' as true on your Lookup select box variable and now use below script.

eg:

function onChange(control, oldValue, newValue, isLoading) {
    if (newValue == '') {       
	 g_form.removeOption('part_id','');
        g_form.addOption('part_id', '', '');
    }
}

Thanks,

Harsh

View solution in original post

Sylvain12 · ‎02-03-2025

Hello Lisa,

If you want to clear a value from onchange script, that use lookup select box type variable, add a condition with newValue == null:

    if (newValue == ''|| newValue == null) {
        g_form.clearValue('variable_name');
    }