Avalonia.ControlsProvides the `TreeDataGrid` control, row-source abstractions, hierarchical index types, and control-level event args used by most applications.Avalonia.Controls.Automation.PeersProvides the Avalonia automation peers used by TreeDataGrid for accessibility tools and UI automation.Avalonia.Controls.ConvertersContains presentation helpers used by TreeDataGrid templates and styling scenarios.Avalonia.Controls.ModelsContains foundational notification and collection base types used by higher-level TreeDataGrid models.Avalonia.Controls.Models.TreeDataGridProvides the model-layer contracts and implementations for TreeDataGrid columns, cells, rows, hierarchy, sorting, and editing.Avalonia.Controls.PrimitivesContains the realized visual controls and presenter infrastructure that render TreeDataGrid rows, cells, and headers.Avalonia.Controls.SelectionProvides row, cell, and column selection models together with the shared event payloads used by TreeDataGrid.Avalonia.Data.Core.ParsersContains the expression parser used by TreeDataGrid typed-binding helpers.Avalonia.Experimental.DataProvides the public typed-binding factories used by advanced TreeDataGrid column scenarios.Avalonia.Experimental.Data.CoreContains the observable runtime used by instantiated TreeDataGrid typed bindings.