OĞUZ EROLADS & AI

Dependent Dropdown Custom Forms

12 September 2026

A user can choose a category, then see relevant products, models and measurements instead of one overwhelming list.

How the Dependent Dropdown Custom Forms can work

When an earlier choice changes, later choices can be cleared or checked so an invalid combination is not carried forward. I can build these rules from your product structure and decide who maintains the available options.

Excel dependent lists and Google Sheets validation can work at first. As category, model and measurement logic grows, a form can manage invalid later choices more clearly for the user.

As Oğuz Erol, I develop custom web apps for this workflow. After reviewing the catalogue and selection chain, I aim to prepare an initial working form quickly; option management helps set scope.

Frequently Asked Questions

Who adds a new product option?

A designated catalog manager can add options, and the form uses the updated list.

What happens to later fields after a selection changes?

Options that are no longer valid can be cleared or the user can be asked to select again.

Discuss your workflow

Discuss your workflow

Explore custom web apps for your team

WHAT YOU CAN ASK FOR

How do I work?
Work-hour packages

Tell me about your website and what you need on WhatsApp or by phone; we agree on a work block of somewhere between 5 and 40 hours and I start doing what is needed. What you get is not a calendar window — it is net working hours spent directly on your business. I can use 40 hours working three days straight, or deliberately spread it out and finish it over a year — whatever the work calls for. I do not spend my time estimating how long something will take, I spend it doing the work; every hour I spend has a lasting result on your site. We keep going for as long as you find it useful.

WORK BLOCKS

Why not monthly?
Is 40 hours a week?

On a fixed monthly fee both sides are watching the wrong thing: you watch a fixed cost, the other side watches how many more contracts like this they can line up. Working by the hour puts us both in front of the same thing — the real value of the work that got done. I know not having an upfront answer to "how much will this cost in total?" is the natural cost of this model. But instead of paying a fixed fee for months to a setup that is not producing results, you only pay for the qualified time spent on your work — and you see exactly where that time went, start to finish. That is why my clients keep coming back.

5hours300€ + VAT60€ per hourChoose this block
10hours500€ + VAT50€ per hourChoose this block
20hours800€ + VAT40€ per hourChoose this block
40hours1,400€ + VAT35€ per hourChoose this block