A specific view model object that maintains the state of the GridLookup's built-in grid and provides the means to populate itself with data when the GridLookup is used in custom data binding mode and its multi-selection mode is enabled.
public class GridLookupViewModel : GridViewModel
Public Class GridLookupViewModel Inherits GridViewModel
The GridLookupExtension.GetViewModel(String) method returns an instance of GridLookupViewModel.
Refer to the Custom Data Binding - Overview topic to learn more.