ASP.NET delete item in a paged container - asp.net

Question

I am currently building a CRUD operations on a entity called Payment.
When are click the pages, for instance, page 2, and try to delete the 9th item on page 2,
it will delete the 9th item on page 1 for me.
Here is my code:
protected void btnDelete_Click(object sender, CommandEventArgs e)
{
int paymentId = Convert.ToInt32(e.CommandArgument.ToString());
try
{
using (BillingApplicationDataContext dc = new BillingApplicationDataContext())
{
BLLPayment bllCorporation = new BLLPayment(dc);
bllCorporation.DeletePayment(paymentId);
}
Response.RedirectToRoute("ViewPaymentsRoute");
}
catch
{
Response.RedirectToRoute("ErrorPageRoute", new {
ErrorMsg = "Unable to delete Payment with Id " +
paymentId.ToString() + "." });
}
}
<asp:ListView ID="lstPayment" runat="server" OnPagePropertiesChanging="lstPayment_PagePropertiesChanging"
EnableViewState="false">
<LayoutTemplate>
<fieldset>
<legend>View Payments</legend>
<table cellpadding="0" cellspacing="0">
<tr>
<th>Id</th>
<th>Corporation</th>
<th>Service Contract</th>
<th>Payment Date</th>
<th>Payment Amount</th>
</tr>
<asp:PlaceHolder ID="itemPlaceholder" runat="server" />
</table>
</fieldset>
</LayoutTemplate>
<ItemTemplate>
<tr>
<td><asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "Id")%>' EnableViewState="false"/></td>
<td><asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "CorpName")%>' EnableViewState="false"/></td>
<td><asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "ServiceContractName")%>' EnableViewState="false"/></td>
<td><asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "PaymentDate")%>' EnableViewState="false" /></td>
<td><asp:Label runat="server" Text='<%# DataBinder.Eval(Container.DataItem, "Amount")%>' EnableViewState="false" /></td>
<td>
<%--<asp:Button runat="server" Text="Detail"
OnCommand="btnDetail_Click"
CommandArgument='<%# DataBinder.Eval(Container.DataItem, "Id")%>' EnableViewState="true"/>--%>
<asp:Button ID="btnDelete" Text="Delete" runat="server"
oncommand='btnDelete_Click' CommandArgument='<%# Eval("Id") %>'
OnClientClick="return ConfirmDelete();"/></td>
</tr>
</ItemTemplate>
</asp:ListView>
<asp:DataPager ID="dataPager" runat="server" PagedControlID="lstPayment" EnableViewState="true">
<Fields>
<asp:NumericPagerField ButtonType="Link" />
</Fields>
</asp:DataPager>
<asp:Button runat="server"
ID="btnNew"
oncommand='btnNew_Click'
Text="New"/>
I think there may be something wrong with the page life cycle, but I do not know how to trace.

Answer 1

Why have you commented out
<asp:Button runat="server" Text="Detail"
OnCommand="btnDetail_Click"
**CommandArgument='<%# DataBinder.Eval(Container.DataItem, "Id")%>'** EnableViewState="true"/>
You are trying to retreive the paymentId but you are passing Id as the command argument. I think the line above is absolutely correct.