DataGrid filter dropdown ignores ColumnDef format metadata
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Since Jun 11, 2026.
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Description
What happened?
Summary
In Fabric DataGrid, column formatting metadata is applied to cell rendering but not to filter dropdown item labels.
Expected behavior
If a column has format metadata (for example $0,0.00), both table cells and filter dropdown values should display with that format.
Actual behavior
Cells display formatted values correctly.
Filter dropdown values show raw/stringified values (unformatted).
Steps to reproduce
Create a DataTable with a numeric column and set ColumnDef.format to $0,0.00.
Render the table with DataGrid data={dataTable}.
Open the filter dropdown for that numeric column.
Compare cell display vs filter item labels.
Environment
Package: @microsoft/fabric-datagrid (1.0.0)
Package: @microsoft/fabric-visuals-core (1.0.0)
App type: Rayfin/Fabric app using DataTable input
Logs or screenshots
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