C#-WEB: Ajax Reorderlist Control

[daJunkCollector]

<cc1:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" >
    </cc1:ToolkitScriptManager>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:UpdateProgress ID="UpdateProgress1" runat="server">
                    <ProgressTemplate>
                        Processing Server Request...
                    </ProgressTemplate>
                </asp:UpdateProgress>
              <br />
 
 
 
              <div class="reorderListDemo">
                  <cc1:ReorderList ID="ReorderList1" runat="server" 
                                                  PostBackOnReorder="False"
                                                  DataSourceID="SqlDataSource1"
                                                  CallbackCssStyle="callbackStyle"
                                                  DataKeyField="TstID"
                                                  SortOrderField="TstValue"
                                                  AllowReorder="true" >
                      <ItemTemplate>
                          <div>
                              <asp:Label ID='lblNameofTeam' runat="server" Text='<%# DataBinder.Eval(Container,"DataItem.TstTitle")  %>' />
                          </div>
                      </ItemTemplate>
                           <ReorderTemplate>
                               <asp:Panel ID="Panel2" runat="server" CssClass="reorderCue" /> 
                          </ReorderTemplate>
                      <DragHandleTemplate>
                          <div class="dragHandle">
                              <img src="images/logo.gif" />
                          </div>
                      </DragHandleTemplate>
                </cc1:ReorderList>
            </div> 
            <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WebsiteConnectionString2 %>"
                                                 SelectCommand="SELECT [TstTitle],[TstValue],[TstID] FROM [Tst900]" UpdateCommand="UPDATE Tst900 SET TstValue = @TstValue where TstId=@TstId"> 
                <UpdateParameters>
                    <asp:Parameter Name="@TstValue" />
                    <asp:Parameter Name="@TstId" />
                </UpdateParameters>
            </asp:SqlDataSource>
           <asp:Button ID="Button1" runat="server" Text="Save" />
     </ContentTemplate>
 </asp:UpdatePanel>

The above code displays the Reorderlist Control correctly, but I cannot figure out how to then save the new order to the database. I'm sure this is fairly easy but I cannot wrap my head around it. I would prefer to add the code to the onclick of the 'save' button at the bottom. Any help would be greatly appreciated.