Quickstarts.HistoricalEvents.Client.SelectTypeDlg.BrowseTV_AfterSelect C# (CSharp) Method

        private void BrowseTV_AfterSelect(object sender, TreeViewEventArgs e)
        {
            try
            {
                DeclarationsLV.Items.Clear();

                if (e.Node == null)
                {
                    OkBTN.Enabled = false;
                    return;
                }

                OkBTN.Enabled = true;

                // get the currently selected event.
                NodeId typeId = m_rootId;
                ReferenceDescription reference = e.Node.Tag as ReferenceDescription;

                if (reference != null)
                {
                    typeId = (NodeId)reference.NodeId;
                }
                
                // get the instance declarations.
                List<InstanceDeclaration> instances = ModelUtils.CollectInstanceDeclarationsForType(m_session, typeId);

                // populate the list box.
                for (int ii = 0; ii < instances.Count; ii++)
                {
                    InstanceDeclaration instance = instances[ii];

                    ListViewItem item = new ListViewItem(instance.DisplayPath);
                    item.SubItems.Add(instance.DataTypeDisplayText);
                    item.SubItems.Add(instance.Description);
                    item.Tag = instance;

                    DeclarationsLV.Items.Add(item);
                }

                // resize columns to fit text.
                for (int ii = 0; ii < DeclarationsLV.Columns.Count; ii++)
                {
                    DeclarationsLV.Columns[ii].Width = -2;
                } 
            }
            catch (Exception exception)
            {
                ClientUtils.HandleException(this.Text, exception);
            }
        }