Readonly field simple question

By plus sign i don't mean adding, but to catenate.

and the category id and size id are drop down menu

Hi,
there is no easy way to change readonly value dynamically.

This task requires a lot of custom JavaScript code. Unfortunately we don't have a ready to go solution for this.
As workaround construct Product Name value in the Before record added event on theEvents tab.

Here is a sample:

$values["product_name"] = $values["categoryID"].$values["sizeID"];

This worked, but it returned with the ID values. is there any way to change this ID values to the name of the category and the size name which is related to the ID?

Hi,
select category name and size name from corresponding tables manually and fill product_name field.

Here is a sample code:

global $dal;

that didn't work
in order to make it work i will have to know what the code means
can you please explain what these means

1. global $dal;
   
2. $rs1 = $dal->Categories->Query("CategoryID=".$values["categoryID"],"");
   
3. $data1 = db_fetch_array($rs1);

Hi,
following code select category name from table categories using entered categoryID($values["categoryID"]):

global $dal;

Actual category name is in the $data1["CategoryName"].
Please make sure you have replaced all highlighted names with your actual ones.

WOOT!! it worked.

Thank you so much
and I wish I could do it with Javascript as well