FIND CONTROL PROBLEM

[in da club]

I have a datagrid and save button in my page.. when i click save button it
doesnt get the text box values. What can be the problem ?



<asp:DataGrid id="DataGrid_te lefon"
OnDeleteCommand ="DataGrid_tele fon_OnDeleteCom mand"
OnItemDataBound ="DataGrid1_OnI temDataBound" style="Z-INDEX: 101; LEFT: 48px;
POSITION: absolute; TOP: 112px"
runat="server" AllowPaging="Tr ue" AutoGenerateCol umns="False"
Font-Size="Medium">
<Columns>
<asp:TemplateCo lumn HeaderText="Sil ">
<ItemTemplate >
<!--<asp:Button id="Button1" CommandName="De lete" runat="server"
Text="Sil" Width="32px"></asp:Button>-->
<asp:PlaceHolde r Runat=server ID ="plhDelete" ></asp:PlaceHolder >
</ItemTemplate>
</asp:TemplateCol umn>
<asp:TemplateCo lumn Visible="False" HeaderText="id" >
<ItemTemplate >
<asp:TextBox id=txyorum runat="server" Text='<%#
DataBinder.Eval (Container, "DataItem.yorum ") %>' Width="24px"
ReadOnly="True" Font-Size="XX-Small" Visible="False" >
</asp:TextBox>
</ItemTemplate>


<asp:Button id="Kaydet" style="Z-INDEX: 101; LEFT: 600px; POSITION:
absolute; TOP: 596px" runat="server"
Text="Kaydet" Width="88px"></asp:Button>

in onclick event for save button

Private Sub Kaydet_Click(By Val sender As System.Object, ByVal e As
System.EventArg s) Handles Kaydet.Click

Dim strQuery As String

Dim dgItem As DataGridItem

'SqlConn.Open()

Dim Marka As String

For Each dgItem In DataGrid_telefo n.Items

Dim txtDesc As TextBox = _

CType(dgItem.Ce lls(1).FindCont rol("txtyorum") , TextBox)


Dim item As Integer

strQuery = "I" & txtDesc.ID & txtDesc.Text.To String



Response.Write( strQuery)





Next

End Sub