The DataGrid control is a control that displays data in a customizable grid.

If you want to use DataGrid control, add Material.Avalonia.DataGrid package:

dotnet add package Material.Avalonia.DataGrid

If you are using MaterialTheme[Base] styles should be included automatically.
However, sometimes this is not the case. Reported issues on browser, probably something AOT related. Anyway, if this happens (DataGrid are invisible), you must add MaterialDataGridStyles to your App.axaml:

<Application ...
  xmlns:dataGrid="clr-namespace:Material.Avalonia.DataGrid;assembly=Material.Avalonia.DataGrid"
  ...

  <Application.Styles>
    ...
    <dataGrid:MaterialDataGridStyles/>

By default DataGrid have Modern ScrollBars.

Add ClassicScrollBar to DataGrid Classes property.

Add MiniScrollBar to DataGrid Classes property.

In the case of using Modern and Mini scrollbars, allows to make them so that they do not float on top of the DataGrid rows, but are to the side of them.
Add DisableHoveringScrollBar to DataGrid Classes property.