Demo. A function that is executed before a row is updated in the data source. }, The set of available page sizes depends on how large the data source is. groupInterval: Number or String A numeric value groups data in ranges of the given length. Gets the data column count. Notifies the DataGrid of the server's data processing operations. Specifies initially or currently focused grid row's key. focusedRowEnabled should be true. Applies only to cells in data or group rows. Follow the steps below to add the Grid component to an application: Use a DevExpress Project Template to create a new Blazor Server or Blazor WebAssembly application..