gives a 404 page not found error.
When you add the add to cart button behavior to the page, let eacart create the select list for you.
First create a recordset that returns all 3 bag sizes.
In the Add to Cart button, set it to lookup the item ID from a recordset, chose the recordset that returns all three bag sizes.
On the bindings tab, bind all of the columns to the recordset. Set the ID column to be updateble from a select list.
once eCart has added the select list to the page, select it in design view. I nthe Property inspector, click the dynamic button.
Set it to use the recordset that returns the three bag sizes. Set the Label to the description column, set the value to the ID column.