I have ben searching for the functionality like treeview dropdown along with virtualscroll and should be able to filter the dropdown values. Please would you share/suggest us if you have this kind of functionality available. I have a very huge treeview dropdown with elements more than 20K. Requirements is, user should filter and select values from the dropdown, based on filter it should display all treeview hierarchy. Because of huge number of elements not able to load all the elements at once. so Need virtual scrolling as well.