This example describes how to hide the detailsview expander icon based on child records count in winui datagrid.
SyncfusionExamples/How-to-hide-the-detailsview-expander-icon-based-on-child-records-count-in-winui-datagrid
This example describes how to hide the detailsview expander icon based on child records count in winui datagrid
C#