Cascading DropDown and Select2 JQ

Hi All,

I use Cascading DropDown extender to populate my DropDown list via web method and its working perfectly fine, I get my fields populated with the text that I want and I can read their ids (SQL) using my vb.net

<asp:DropDownList ID="MarStatTxt" runat="server" onkeydown="return (event.keyCode!=13)"
                                    CssClass="form-control mb-md" ClientIDMode="Static"></asp:DropDownList><cc1:CascadingDropDown ID="cddlMarStatTxt" runat="server"
                                                    BehaviorID="cddlMarStatTxt" Category="MarStat"
                                                    LoadingText="Loading Marital Status..." PromptText="Select Marital Status"
                                                    ServiceMethod="GetMaritalStatus"
                                                    ServicePath="~/ARTSQLAPP/CONFIG/ARTSQLWbSrvDDL.asmx"
                                                    TargetControlID="MarStatTxt" />

once I add select2 plug in 

<asp:DropDownList ID="MarStatTxt" runat="server" onkeydown="return (event.keyCode!=13)"
                                    data-plugin-selectTwo CssClass="form-control mb-md" ClientIDMode="Static"></asp:DropDownList>

I can only read the text and I cant read the Id for that selected value.

I noticed that after I select the value, my cascade DropDown extender does not read the value 

i.e. 

without Select 2

<input type="hidden" name="ctl00$tst$cddlMarStatTxt_ClientState" id="tst_cddlMarStatTxt_ClientState" value="1:::Single:::">

with select2

<input type="hidden" name="ctl00$tst$cddlMarStatTxt_ClientState" id="tst_cddlMarStatTxt_ClientState" value="::::::">

any idea please on how i can get this feature to work?

thanks