TreeList checkbox checking issue

[Susi]

Dear All,

 We are developing project using asp.net with c sharp  and I have TreeList in my page with checkbox but when i select parent checkbox child checkbox not checked what i need to do solve this..
my aspx code is

                               <telerik:RadTreeList ID="radTreelistLocation" runat="server" OnItemDataBound="radTreelistLocation_ItemDataBound"
    AutoGenerateColumns="false" ParentDataKeyNames="ParentLocationId" AllowMultiItemSelection="true"
    ShowTreeLines="true" OnNeedDataSource="RadTreeList1_NeedDataSource" AllowPaging="true"
    PageSize="50" DataKeyNames="ID" AllowSorting="true">
    <Columns>
        <telerik:TreeListTemplateColumn UniqueName="locationName" HeaderText="Location Name">
            <ItemTemplate>
                <asp:CheckBox ID="chkAssign" runat="server" Checked='<%# Eval("IsChecked") %>' OnCheckedChanged="chkAssign_CheckChanged" />
            </ItemTemplate>
        </telerik:TreeListTemplateColumn>
        <telerik:TreeListTemplateColumn UniqueName="locationName" HeaderText="Location Name">
            <ItemTemplate>
                <asp:Label ID="lblLocationName" runat="server" Text='<%#Eval("Name") %>' />
            </ItemTemplate>
        </telerik:TreeListTemplateColumn>
   </Columns>
</telerik:RadTreeList>

And My aspx.cs page code is.

        protected void Page_Load(object sender, EventArgs e)
        {

            if (!Page.IsPostBack)
            {
                PopulateUsers();
                radTreelistLocation.ExpandAllItems();
                bindGrid();
            }
        }
        protected void RadTreeList1_NeedDataSource(object sender, EventArgs e)
        {
            radTreelistLocation.DataSource = _applicationProcess.SelectLocations();
        }
        public void bindGrid()
        {
            List<Location> locationlist = new List<Location>();
            locationlist = _applicationProcess.SelectLocations();
            radTreelistLocation.DataSource = _applicationProcess.SelectLocations();
            radTreelistLocation.DataBind();
            ViewState["location"] = locationlist;
        }
}

Thanks in Advance..!

[Tsvetina]

Hi Susi,

You would need to enable server-side recursive selection in order to select all children when a parent item is selected. Set AllowRecursiveSelection="true" for the RadTreeList control, and also AllowMultiItemSelection="true". 

You can see how this works in the first RadTreeList in this demo (use the configurator to enable recursive selection):
http://demos.telerik.com/aspnet-ajax/treelist/examples/selecting/serversideselection/defaultcs.aspx 

Regards,
Tsvetina
the Telerik team