If your Microsoft Access forms feel slow or clunky, there is a good chance your combo boxes are loading far more records than they actually need. In this TechHelp video, I show how to build smarter combo boxes that load only what is necessary, making your forms faster, cleaner, and easier to use.
The problem
Many Access developers load entire tables into combo boxes by default, even when those tables contain thousands or tens of thousands of records. This can slow forms down significantly, especially over a network or with a SQL Server back end, and it also creates clutter for users who usually just want to see the current value.
Why common solutions fall short
Filtering combo boxes manually or relying on users to search through long dropdown lists still means loading a lot of unnecessary data. Inactive records, old customers, or unused values continue to hurt performance and usability unless you deliberately control what gets loaded.
The practical solution
In this video, I demonstrate how to build smart combo boxes by changing the RowSource dynamically based on context. When viewing an existing record, the combo box loads only the current value. When adding a new record, it loads only active records. Simple command buttons allow the user to switch to active or all records on demand, giving flexibility without sacrificing performance.
Who this video is for
This is a developer-level TechHelp video aimed at Access users who are comfortable with VBA and want better control over form behavior and performance. If you work with large tables, multi-user databases, or linked data sources, this technique can make a noticeable difference.
What is coming next
Building on this idea, there are other videos that explore advanced combo box techniques, dynamic filtering, and performance optimization in more depth. And if you ever search YouTube or Google for a Microsoft Access topic and do not see one of my videos, let me know. I will make one.
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