using Gtk; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Gdk; var model = new TreeStore(typeof(string)); var rootNode = model.AppendValues("Root"); var node1 = model.AppendValues(rootNode, "Node 1"); var node2 = model.AppendValues(rootNode, "Node 2"); var node3 = model.AppendValues(node1, "Node 3"); var node4 = model.AppendValues(node2, "Node 4");
using Gtk; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Gdk; var model = new ListStore(typeof(string)); model.AppendValues("Banana"); model.AppendValues("Apple"); model.AppendValues("Cherry"); model.AppendValues("Pear"); model.AppendValues("Orange"); var view = new TreeView(); var column = new TreeViewColumn(); column.Title = "Fruit"; view.AppendColumn(column); var cell = new CellRendererText(); column.PackStart(cell, true); view.Model = model; model.SetSortFunc(0, (model, x, y) => { var s1 = model.GetValue(x, 0).ToString(); var s2 = model.GetValue(y, 0).ToString(); return s1.CompareTo(s2); }); model.SetSortColumnId(0, SortType.Ascending); var window = new Window("Tree View Example"); window.Add(view); window.ShowAll(); Gtk.Application.Run();In this example, we first create a new ListStore model and add some data to it. Then, we create a TreeView widget and add a column to it. We use a CellRendererText to display the data in each cell, and then we associate the model with the widget. Next, we set a sort function for the model, which will sort the data based on the value of the first column. Finally, we set the sort column and type, and display the window. Overall, C# TreeModel is a useful package library for working with tree-like structures in C#. It provides a convenient way to create, manipulate, and sort hierarchical data.