repeater not giving me new value during editing in asp.net

repeater not giving me new value during editing in asp.net

<asp:Repeater ID="RptrSearchedPhotographer" runat="server"
onitemcommand="RptrSearchedPhotographer_ItemCommand"
onitemdatabound="RptrSearchedPhotographer_ItemDataBound">
<ItemTemplate>
<tr>
<td>
<asp:Label ID="LblContactInfo" runat="server" Text='<%#
Eval("ContactInfo")%>'/>
<asp:TextBox ID="TxtContactInfo" runat="server"
Text='<%#Eval("ContactInfo") %>' Visible="false"
></asp:TextBox>
</td>
<td>
<asp:LinkButton ID="LnkDelete" runat="server"
CommandArgument='<%#Eval("Id") %>'
CommandName="delete">Delete</asp:LinkButton>
<asp:LinkButton ID="lnkEdit" runat="server"
CommandArgument='<%#Eval("Id") %>' CommandName="edit"
EnableViewState ="true">Edit</asp:LinkButton>
<asp:LinkButton ID="lnkUpdate" runat="server"
CommandArgument='<%#Eval("Id") %>' CommandName="update"
Visible="false"
EnableViewState="true">Update</asp:LinkButton>
<asp:LinkButton ID="LinkCancel" runat="server"
CommandName="cancel"
Visible="false">cancel</asp:LinkButton>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
my .cs code is...
if (e.CommandName.Equals("update")) {
TextBox DetailNote =
(TextBox)e.Item.FindControl("txtDetailNote");
string s = DetailNote.Text;
}
but here... its give me old value of in s from textbox. but i want new
value which is inserted during run time... I googled a lot... but its not
work... help...!