Clearing a List box with click of a button

[#1]

Experts,

I have been trying to achieve this for few months.

Here is the scenario

I have a button called "Reset" what it supposed to do is ,clear a list box with object id LB14.

Please note that the List box is based on a complex expression (NOT field based)

The challenge is to refer it by the object ID as there is no underlying field.

I tried action ClearField and give the object ID and doesn't work

Thanks in advance,

AP

[rustyfishbones]

Aji,

Add the Expression in the Script

And then clear the field Val in the button

[#3]

I made the expression simple to get the objective. The expression I am using uses many fields and variables. So I can't load this in the script. It uses mathematical functions Sin, cos atan, few fields, few variables. Based on the state of the variables / Functions/Fields I present a check box for user to choose. If they select the check box , all the fields are getting selected. When user changes one variable, it retains all selection and re-apply teh variable alone. So I I could clear the list box , it releases all the selection made by that check box,

So the objective is again to clear the list box 🙂

Thanks