RadzenDataGrid header has an higher z-index as rz-header #734

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opened 2026-01-29 17:42:27 +00:00 by claunia · 2 comments
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Originally created by @MPapst on GitHub (Feb 13, 2023).

Describe the bug
When a RadzenDataGrid displays more rows, so that is needs scrolling, the header line overlaps with the RadzenHeader component and hides it.

Expected behavior
The DataGrid should be completely hidden below the Header.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
When navigating through the generated source, it seems that the css variable --rz-header-z, which controls the z-index of the css selector .header.fixed (at least in material theme) is not defined.
Note: z-index of .rz-grid-table thead is 2

Originally created by @MPapst on GitHub (Feb 13, 2023). **Describe the bug** When a `RadzenDataGrid` displays more rows, so that is needs scrolling, the header line overlaps with the `RadzenHeader` component and hides it. **Expected behavior** The DataGrid should be completely hidden below the Header. **Screenshots** If applicable, add screenshots to help explain your problem. **Additional context** When navigating through the generated source, it seems that the css variable `--rz-header-z`, which controls the z-index of the css selector `.header.fixed` (at least in material theme) is not defined. Note: z-index of `.rz-grid-table thead` is 2
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@MPapst commented on GitHub (Feb 14, 2023):

same for rz-navigation-menu

image

@MPapst commented on GitHub (Feb 14, 2023): same for `rz-navigation-menu` ![image](https://user-images.githubusercontent.com/16494676/218739977-87f3b541-9807-4c5a-94f6-f818d171b820.png)
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@akorchev commented on GitHub (Mar 30, 2025):

Is this still an issue? I can't seem to reproduce it in our online demos.

@akorchev commented on GitHub (Mar 30, 2025): Is this still an issue? I can't seem to reproduce it in our online demos.
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Reference: starred/radzen-blazor#734