void IEventSink.NotifyNodeChanged(DataNode node, int index)
{
NodeChanged?.Invoke(this, new TreeNodeEventArgs(node, index));
}
public TreeViewCustomStore()
{
DataNode root = new DataNode("Root",
new DataNode [] {
new DataNode("One", new DataNode [] {
new DataNode("Elephant"),
new DataNode("Tiger")
}),
new DataNode("Two", new DataNode [] {
new DataNode("Monkey"),
new DataNode("Lion")
}),
}
);
DataNode root2 = new DataNode("Second Root",
new DataNode [] {
new DataNode("One", new DataNode [] {
new DataNode("Elephant"),
new DataNode("Tiger")
}),
new DataNode("Two", new DataNode [] {
new DataNode("Monkey"),
new DataNode("Lion")
}),
}
);
MyTreeSource source = new MyTreeSource();
source.Add(root);
source.Add(root2);
source.Add(new InfiniteDataNode("Infinite"));
TreeView tree = new TreeView();
var col = new ListViewColumn("Data");
col.Views.Add(new ImageCellView(source.ImageField));
col.Views.Add(new TextCellView(source.LabelField));
tree.Columns.Add(col);
PackStart(tree, true);
var hbox = new HBox();
var add = new Button("Add nodes");
var change = new Button("Change nodes");
var remove = new Button("Remove nodes");
hbox.PackStart(add);
hbox.PackStart(change);
hbox.PackStart(remove);
PackStart(hbox);
add.Clicked += delegate {
var node = new DataNode("New child");
root.InsertChild(1, node);
tree.SelectRow(node);
};
remove.Clicked += delegate {
if (root.Children.Count > 0)
{
root.RemoveChild(root.Children [root.Children.Count - 1]);
}
};
change.Clicked += delegate {
var sel = (DataNode)tree.SelectedRow;
if (sel != null)
{
sel.Name = "Modified";
}
};
tree.DataSource = source;
}
public void Add(DataNode node)
{
data.Add(node);
node.EventSink = this;
}