Questions on dependent dropdown lists

[drayyes]

Hi,

I am using PDF Forms. I having basic skills on Javascript, so I have some questions to clarify about the below code. I have seen codes created for dependent dropdpwn list in the forum and I tried to make use of it.

I have created dropdown list1 called "Country." I set "USA and UK" as items in the dropdown list. Now, depending on that choice, dropdown list2 called "City" will have different cities to select from.

First question, is my following code correct to achieve my objective?

1. switch (event.value) { 
2.     case "US": 
3.         this.getField("City").setItems(["NY","SN"]); 
4.         break; 
5.     case "UK": 
6.         this.getField("City").setItems(["London","Liverpool"]); 
7.         break;       
   
8. } 

Second question, where I have to add this code ? is it for "Country" or for "City" properties ?

Third question, what does (event.value) mean ? is it changing depends on the dropdown list name ?

Thanks a lot.

[try67 · Accepted solution]

1. Yes, seems fine.

2. As the custom validation script of "Country".

3. It refers to the newly selected value of the drop-down field. The name of that field doesn't matter.

[drayyes]

Thank.

That helps and code is working perfectly.