Radzen Blazor is a set of 90+ free native Blazor UI components packed with DataGrid, Scheduler, Charts and robust theming including Material design and FluentUI.
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
MPapst
commented
1 year ago 
Describe the bug When a
RadzenDataGriddisplays more rows, so that is needs scrolling, the header line overlaps with theRadzenHeadercomponent 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 theadis 2