Select a dropdown entry based on checkbox

You can do this with the setItemState property.
A small JavaScript in the change:event of the checkbox can control the preselection of an item of the drop down box.

Thank you for your reply but it is not working for me.
I have put this code in the calculation filed for the checkbox:

if(this.value.integer.value == 1)
{
//Select first entry of the drop down box entries (0 = first entry , 1 = second entry etc.).
Dropdown1.setItemState(12, true);
}
[else
{
Dropdown1.rawValue = null;


The name of the checkbox is CheckBox1 and the drop down is Dropdown1.
I want the drop down to select the 12th entry if the checkbox is selected.
I am not sure what I am missing.
I tried it as a dynamic pdf as well.
Thanks for your help

Don't use the calculate:event, use the change:event as suggested before.

to get the 12th entry the code is:
Dropdown1.setItemState(11, true);

Still not working.
Are there some other settings I am missing?
Thanks for your help

Language is JavaScript, ensure it is selected in the script editor.

I have entered the code with the change function.
I am using javascript.
When I select the check box nothing changes.
Are there any specific values I need in the drop down?

Check the JavaScript console (ctrl + j) in Acrobat for any errors.

I removed the brackets and it is working thank you very much!!

If I want it to check a second field as well to make sure there is a number in it and the checkbox is checked can I do that?
I tried this below but with no luck

if((this.value.integer.value = 1)&(box2.value >0)) ddd1.setItemState(1, true);else ddd1.rawValue = null;Thanks alot!

Still not working.
Are there some other settings I am missing?
Thanks for your help
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Hello radzmar,
Thanks for your help.
Is there a way to add one more condition to this formula?
if((this.value.integer.value = 1)&(box2.value >0)) ddd1.setItemState(1, true);else ddd1.rawValue = null;
then I want it to check that Box1 has a value in it any number other than zero before it populates the dropdown

Thank for your help.
Sorry Germany did not win the World Cup!

Hi,

if you want to check two different source for a specific value to populate the dropdown list, its better to put the script into the layout:ready event of the dropdown list.


Well, we didn't win the World Cup, but we've played the better final (match for the 3rd place) ;-)