Multilevel Gridview Showing Extra Fields

I am making a leave management program in asp.net using c#. Im having a problem on my multilevel gridview where it show all the fields i called in a query but I only specifiy some columns to be shown in a label using Bind

Here is my code for my design

<asp:TemplateField HeaderStyle-BorderStyle="None" ItemStyle-Width="10" ItemStyle-CssClass="tRight" ItemStyle-HorizontalAlign="left">
<ItemTemplate>
<img title= "View Details" style="cursor: pointer" src="../Images/plus.png/"/>
<asp:Panel ID="pnlRegDetails" runat="server" Style="display:none;"> <!-- Plus sign panel -->
<div style="padding:2px 2px 2px 2px;">

[Code] .....

And here is my code in c# in code behind

protected void bindLeaveApplication6()
{
int cutoffid = getCutOffID(cboCutOffSelect.SelectedValue);
using (SqlConnection conn = new SqlConnection(DAO.ConnectionString))
{
conn.Open();

[Code] ....