void BuildTaskAttachments()
{
this.m_tasksIconView.TextColumn = 1;
this.m_tasksIconView.PixbufColumn = 0;
this.m_tasksIconView.TooltipColumn = 2;
this.m_tasksIconView.SelectionChanged += delegate {
var sensitive = this.m_tasksIconView.SelectedItems.Length > 0;
this.m_removeAttachmentButton.Sensitive = sensitive;
};
this.UpdateAttachments ();
}