Auto Single Select Slicer

Auto Single-Select Dropdown Slicer is a lightweight Power BI custom visual designed to enforce single-value selection through a compact dropdown interface. Unlike standard slicers, it automatically selects the first available value on load, ensuring reports always have a valid default filter context without requiring manual user interaction.

Optimised for clean, unambiguous filtering experiences, the visual restricts selection to one active value at any time, eliminating inconsistent filter states and preventing null contexts in downstream visuals and measures.

Key Capabilities

Dropdown-Only Interface — Provides a compact dropdown UI that conserves canvas space and integrates cleanly into report layouts.

Single-Select Enforcement — Restricts selection to one value at a time, eliminating multi-select complexity and inconsistent filtering states.

Auto First Value Selection — Automatically selects the first available item on visual load, ensuring the report always has a valid default filter context.

Responsive Filter Behavior — Dynamically updates available values in response to other slicers and report filters while maintaining a valid single selection at all times.

Clean Selection State Management — Ensures exactly one active selection is maintained at all times, preventing null or conflicting filter states across the report.

Coming Soon

Planned enhancements include configurable default selection logic (last selected value or custom default), in-dropdown search for large datasets, an optional clear selection control, theme-aligned dropdown styling, and improved accessibility support for keyboard navigation and screen readers.