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c#treeviewmonodevelopgtk#

MonoDevelop / GtkSharp - How to add item to the beginning of the list in TreeView?

Is possible to add item to GtkSharp TreeView on the top of list/tree?
This is possible in Windows Form for example by this way:
listBox.Items.Insert(0, "anyItem");

However I'm note able to find similar solution in GtkSharp.

Solution

  • Create a ListStore or TreeStore object and assign it to the TreeView's Model property. Then you can insert or add items using the ListStore or TreeStore object.

    Below is a simple example that uses a ListStore.

    var listView = new TreeView ();
listView.HeadersVisible = false;

listStore = new ListStore (typeof(string));
listView.Model = listStore;

var cellView = new CellRendererText ();
var column = new TreeViewColumn ("Title", cellView);
column.AddAttribute (cellView, "text", 0);
listView.AppendColumn (column);

    Then you can insert an item using:

     int position = 0;
 listStore.InsertWithValues (position, "MyItem");