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Please help me checkbox in treelist

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TreeList

This is a migrated thread and some comments may be shown as answers.

Du asked on 14 Jun 2012, 06:38 AM

Hi all!

I want used checkbox in telerik:TreeListSelectColumn , I need to implement the recursive selection at this way:
1. Select all parents when the at least one child item was selected.
2. Select all childs when the parent was selected
But when I'm runing my project, debuging function itemSelected (), error selectedItem.get_parentItem() and display error :
Object doesn't support property or method 'get_parentItem'

I'm add Telerik.Web.UI 3.5 use for Dotnetnuke 4.5.9 .net Framework 2.0, unknow Can I use ?

Thank for help!

function itemSelected(sender, args) {

var treelist = sender;

var selectedItem = args.get_item();

if(selectedItem.get_parentItem())

treelist.selectItem(selectedItem.get_parentItem());

//comment out the above line and uncomment the below one to get all child items selected functionality

//selectChildren(selectedItem);

function selectChildren(item) {

treelist.selectItem(item);

if (item.get_childItems().length > 0) {

for (var i = 0; i < item.get_childItems().length; i++) {

selectChildren(item.get_childItems()[i]);

}

<telerik:RadTreeList runat="server" ID="RadTreeList1" DataKeyNames="Id" ParentDataKeyNames="CongViecChaId" OnItemCommand="RadTreeList1_ItemCommand"

AllowMultiItemSelection="True" AllowPaging="false" AllowSorting="true" Skin="Hay"

AutoGenerateColumns="false" OnNeedDataSource ="RadTreeList1_NeedDataSource" OnItemCreated="RadTreeList1_ItemCreated" OnItemDataBound="RadTreeList1_ItemDataBound" >

<Columns>

<telerik:TreeListSelectColumn HeaderStyle-Width="40px" UniqueName="chkColum" >

</telerik:TreeListSelectColumn>

<telerik:TreeListBoundColumn DataField="Id" HeaderText="Id" UniqueName="Id" Visible="false">