How to clear select lookup box variable value?

[Lisa Goldman]

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

[Lisa Goldman]

@Harsh Vardhan 

I have tired your suggestion code and it works in side of the application. However, I tried on the portal and that did not work.  I might have screwed up somewhere in the code.  Thank you for continuing to help.

[Harsh Vardhan · Accepted solution]

@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

[Lisa Goldman]

Hello @Harsh Vardhan 

You have done it again!  It works perfectly. 

I have seen many of your resolved threads, and you are truly an outstanding programmer.  

I wanted to thank you for the time and effort you have dedicated to the community.  You have really made a difference.   I sincerely thank you again.

[Harsh Vardhan]

Glad my answer helped you. 

Thank you.

[Jon23]

This solution worked great in the classic catalog ui, but would not work in portal for me.

The following was the only solution i found that worked in both UIs:

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