Hello,
In my case I have a RadzenDataGrid with LoadData event handler where I get the list of objects and their count to which Data and Count properties are bound. In that LoadData event handler method I show busy modal dialog as work in progress indicator and calling DialogService.OpenAsync causes the razor page, where data grid is, to re-render. Is that the normal behavior when opening a modal dialog?
In my opinion this is normal since the dialog is shown using Blazor rendering (not with plain JavaScript) which might cause page rerender.