You can show an indication of the data loading with the help of the BusyIndicator while in the SfDataGrid. You can display the BusyIndicator by setting the BusyIndicator.IsBusy to true when loading the data. Once loaded, you can stop it by setting the BusyIndicator.IsBusy to false by handling the ItemsSourceChanged event of the SfDataGrid.
Here, the BusyIndicator is stopped after the SfDataGrid.ItemsSource is changed by handling the ItemsSourceChanged event.
The following screenshot shows the BusyIndictor before loading the data into the view.
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