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add example

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svn path=/trunk/gtk-sharp/; revision=26091
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John Luke 2004-04-28 01:25:29 +00:00
parent 667e5a7caf
commit e06a0d40ce
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1
doc/ChangeLog
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2004-04-27 John Luke <jluke@cfl.rr.com>
* en/Gdk/Threads.xml: document
* en/Gtk/TreeSelection.xml: add example
2004-04-12 Mike Kestner <mkestner@ximian.com>

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doc/en/Gtk/TreeSelection.xml
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<para>TreeSelection can check the selection status of the tree, as well as select and deselect individual rows. Selection is done completely on the view. As a result, multiple views of the same model can have completely different selections. Additionally, you cannot change the selection of a row that is not currently displayed by the view without expanding its parents first.</para>
<para>One of the important things to remember when monitoring the selection of a view is that the <see cref="E:Gtk.TreeSelection.Changed" /> event is mostly a hint. For example, it may only fire once when a range of rows is selected. It may also fire when nothing has happened, such as when <see cref="M:Gtk.TreeSelection.SelectPath(Gtk.TreePath)" /> is called on a row that is already selected.</para>
</remarks>
<example>
<code lang="C#">
using System;
using Gtk;
class Selection
{
static void Main ()
{
Application.Init ();
Window win = new Window ("TreeSelection sample");
win.DeleteEvent += OnWinDelete;
TreeView tv = new TreeView ();
tv.AppendColumn ("Items", new CellRendererText (), "text", 0);
ListStore store = new ListStore (typeof (string));
store.AppendValues ("item 1");
store.AppendValues ("item 2");
tv.Model = store;
tv.Selection.Changed += OnSelectionChanged;
win.Add (tv);
win.ShowAll ();
Application.Run ();
}
static void OnSelectionChanged (object o, EventArgs args)
{
TreeIter iter;
TreeModel model;
if (((TreeSelection)o).GetSelected (out model, out iter))
{
string val = (string) model.GetValue (iter, 0);
Console.WriteLine ("{0} was selected", val);
}
}
static void OnWinDelete (object o, DeleteEventArgs args)
{
Application.Quit ();
}
}
</code>
</example>
</Docs>
<Base>
<BaseTypeName>GLib.Object</BaseTypeName>