Example of Sticky Header in ASP.NET Core Tree Grid Control
This sample demonstrates the Tree Grid component with the sticky header feature. In this sample, while scrolling the demo page, the Tree Grid header will be fixed at the top of its parent element.
                                                 DEMO 
                                            
                                            
                                                  SOURCE 
                                            
                                        he headers can be fixed while scrolling a TreeGrid's first scrollable parent element. This can be done by setting the enableStickyHeader 
            enableStickyHeader property.
        
In this demo, while scrolling the demo page, the Tree Grid header will be stick to the top of its parent element.
More information on the sticky header can be found in this documentation section.