How to find rowindex in radtreelist when i used raddropdownlist.in radtreelist

[Sravn]

Hi All,

   <telerik:RadTreeList runat="server" ID="RadTreeList2" DataKeyNames="ID" ParentDataKeyNames="ParentID"
                        OnNeedDataSource="RadTreeList2_NeedDataSource" AutoGenerateColumns="False" AllowRecursiveSelection="true"
                        OnItemCommand="RadTreeList2_ItemCommand" AllowMultiItemSelection="True" OnUpdateCommand="RadTreeList2_UpdateCommand"
                        OnItemCreated="RadTreeList2_ItemCreated" OnPreRender="RadTreeList2_PreRender" ClientSettings-ClientEvents-OnItemSelected="itemSelected1">
                        <ClientSettings ClientEvents-OnItemClick="itemSelected1" Selecting-AllowItemSelection="true">
                        </ClientSettings>
                        <ExportSettings>
                            <Excel PageLeftMargin="0.7in" PageRightMargin="0.7in">
                            </Excel>
                            <Pdf PageHeight="11in" PageWidth="8.5in">
                            </Pdf>
                        </ExportSettings>
                        <EditFormSettings EditFormType="AutoGenerated">
                        </EditFormSettings>
                        <ValidationSettings CommandsToValidate="PerformInsert,Update" />
                        <Columns>
                            <telerik:TreeListBoundColumn DataField="Title" HeaderText="Title" UniqueName="Title">
                                <HeaderStyle Width="200px" />
                            </telerik:TreeListBoundColumn>
                            <%--<telerik:TreeListBoundColumn DataField="Description" HeaderText="Description" UniqueName="Description">
                </telerik:TreeListBoundColumn>--%>              
              
                            <telerik:TreeListTemplateColumn HeaderText="Data" UniqueName="Data"   >
                                <ItemTemplate>

                                    <telerik:RadDropDownList ID="ddllist" runat="server" OnItemSelected="ddllist_onItemSelected"
                                        AutoPostBack="true"   >
                                        
                                    </telerik:RadDropDownList>
                                </ItemTemplate>
                            </telerik:TreeListTemplateColumn>
                        </Columns>
                        <PagerStyle PageSizeControlType="RadComboBox" />
                    </telerik:RadTreeList>
 I have scenerio of handling radtreelist with parent and childs, i binded the CustomerBank as Parent , BankAccountNumber and BankRoutingNumber as Childs
 CustomerBank                                         DropDownList like ReadOnly,NoDisplay,CompleteAccess
  --     Bank AccountNumber                         DropDownList like ReadOnly,NoDisplay,CompleteAccess
  --     Bank Routing Number                         DropDownlist like ReadOnly,NoDisplay,CompleteAccess

if i select CustomerBank as parent of Dropdownlist as ReadOnly , the two Child Items also should bind the same as ReadOnly,i have written the code on raddropdown ItemSelected.its working fine. But  when i select BankAccountNumber or BankRoutingNumber of Row dropdownlist as NoDisplay its binding two child item, 
I need avoid dropdownlist event for child items in RadTreeList of particular row.

I am not getting the rowindex of radtreelist, so that i can do coding based on rowindex,
I have searched the demo for radtreelist but there  no demo on radtreelist with dropdownlist.


Can you please suggest what i need to do..