How to use BusyIndicator along with OnDemandLoading?

Question

Please give an example code that uses OnDemandLoading and shows BusyIndicator while data are loaded. I want to use MVVM pattern.Thanks

Dhanasekar Mohanraj · Answer

Hi Fardin,
Currently, we are checking the feasibilities to achieve your requirement. We need two more business days to check this. We will update you with
further details on July 26, 2022.

We appreciate your patience until then.Regards,Dhanasekar M.

Dhanasekar Mohanraj · Answer

Hi Fardin,Sorry for the inconvenience
caused.

Still, we are working on this. We
will check and update you on further details on July 28, 2022.

We appreciate your patience until then.

Regards,
Dhanasekar M.

Dhanasekar Mohanraj · Answer

Hi
Fardin,

You can achieve your requirement to show the busy indicator with
OnDemandLoading on MVVM pattern will be achieved using the below code snippet,

AssociatedObject.sfDataPager.OnDemandLoading
  += OnDemandLoading;
  
  async void OnDemandLoading(object sender, OnDemandLoadingEventArgs
  args)
  {
     
  AssociatedObject.busyIndicator.IsBusy = true;
     
  await Task.Delay(5000);
     
  AssociatedObject.sfDataPager.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.ApplicationIdle,
  new Action(() =>
     
  {
          AssociatedObject.sfDataPager.LoadDynamicItems(args.StartIndex,
  source.Skip(args.StartIndex).Take(args.PageSize));
         
  AssociatedObject.dataGrid.View.Refresh();
          AssociatedObject.busyIndicator.IsBusy
  = false;              
     
  }));
  }

For more information related to DataVirtualization and showing busy indicators,
please refer the below user guide documentation link,UG Link: https://help.syncfusion.com/wpf/datagrid/data-virtualization
KB Link: https://www.syncfusion.com/kb/5352/how-to-show-the-busy-indicator-while-loading-the-data-in-the-sfdatagrid

Please find the sample in the attachment and let us know if you have any
concerns about this.Regards,Dhanasekar M.Attachment: Sample_51a1a643.zip