Not showing textbox when the grid view edit button clicked

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grid

The code in aspx and aspx.cs was given But the grid view was not editable
when i click the edit button on grid the textboxs are not displaying.

Can you please help me............Please

This is my code in aspx.cs page:

protected void gv_RowUpdating(object sender, GridViewUpdateEventArgs e)
       {
           Label lblid = gv.Rows[e.RowIndex].FindControl("lblid") as Label;
           TextBox lstname = gv.Rows[e.RowIndex].FindControl("lstname")as TextBox;
           TextBox fstname= gv.Rows[e.RowIndex].FindControl("fstname")as TextBox;
           TextBox titlee = gv.Rows[e.RowIndex].FindControl("titlee")as TextBox;
           TextBox adress = gv.Rows[e.RowIndex].FindControl("adress")as TextBox;
           TextBox City   = gv.Rows[e.RowIndex].FindControl("City")as TextBox;
           TextBox region = gv.Rows[e.RowIndex].FindControl("region")as TextBox;
           TextBox Pcode  = gv.Rows[e.RowIndex].FindControl("Pcode")as TextBox;
           TextBox country = gv.Rows[e.RowIndex].FindControl("country")as TextBox;
           TextBox extenction= gv.Rows[e.RowIndex].FindControl("extenction")as TextBox;

           if (lblid != null && lstname != null && fstname != null && titlee != null && adress != null && City != null && region != null && Pcode != null && country != null && extenction != null)
           {
               Employee emp = new Employee();
               emp.empid = Convert.ToInt32(lblid.Text.Trim());
               emp.Lastname = lstname.Text;
               emp.Firstname = fstname.Text;
               emp.Title = titlee.Text;
               emp.Address = adress.Text;
               emp.City = City.Text;
               emp.Region = region.Text;
               emp.Postalcode = Pcode.Text;
               emp.Country = country.Text;
               emp.Extenction = extenction.Text;

               if (evnt.updateemp(emp) == true)
               {
                   lblerror.Text = "Updated Sucessfully";
               }
               else
               {
                   lblerror.Text = "failed";
               }
               gv.EditIndex = -1;
               binddata();
           }


       }

This is my code in aspx page:

<asp:GridView ID="gv" runat="server" AutoGenerateEditButton="True" AutoGenerateColumns="False"
           OnRowCancelingEdit="gv_RowCancelingEdit" OnRowDeleting="gv_RowDeleting"
           OnRowUpdating="gv_RowUpdating" CellPadding="4" ForeColor="#333333"
           GridLines="None" OnRowEditing="gv_RowEditing">
                   <AlternatingRowStyle BackColor="White" />
                   <EditRowStyle BackColor="#2461BF" />
                   <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                   <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                   <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
                   <RowStyle BackColor="#EFF3FB" />
                   <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
                   <SortedAscendingCellStyle BackColor="#F5F7FB" />
                   <SortedAscendingHeaderStyle BackColor="#6D95E1" />
                   <SortedDescendingCellStyle BackColor="#E9EBEF" />
                   <SortedDescendingHeaderStyle BackColor="#4870BE" />
                   <Columns>

                   <asp:TemplateField HeaderText="EmployeeID">
                   <EditItemTemplate>
                   <asp:Label ID="lblid" runat="server" Text='<%#Eval("empid") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable1" runat="server" Text='<%#Eval("empid") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="LastName">
                   <EditItemTemplate>
                   <asp:Label ID="lstname" runat="server" Text='<%#Eval("lastname") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable2" runat="server" Text='<%#Eval("lastname") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="Firstname">
                   <EditItemTemplate>
                   <asp:Label ID="fstname" runat="server" Text='<%#Eval("firstname") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable3" runat="server" Text='<%#Eval("firstname")%>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="Title">
                   <EditItemTemplate>
                   <asp:Label ID="titlee" runat="server" Text='<%#Eval("title") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable4" runat="server" Text='<%#Eval("title") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="Address">
                   <EditItemTemplate>
                   <asp:Label ID="adress" runat="server" Text='<%#Eval("address") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable5" runat="server" Text='<%#Eval("address") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="City">
                   <EditItemTemplate>
                   <asp:Label ID="City" runat="server" Text='<%#Eval("city")%>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable6" runat="server" Text='<%#Eval("city")%>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="region">
                   <EditItemTemplate>
                   <asp:Label ID="region" runat="server" Text='<%#Eval("region") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable7" runat="server" Text='<%#Eval("region") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="Postalcode">
                   <EditItemTemplate>
                   <asp:Label ID="Pcode" runat="server" Text='<%#Eval("postalcode")%>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable8" runat="server" Text='<%#Eval("postalcode")%>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="Country">
                   <EditItemTemplate>
                   <asp:Label ID="country" runat="server" Text='<%#Eval("country") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable9" runat="server" Text='<%#Eval("country") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   <asp:TemplateField HeaderText="Extension">
                   <EditItemTemplate>
                   <asp:Label ID="extenction" runat="server" Text='<%#Eval("extenction") %>'></asp:Label>
                   </EditItemTemplate>
                   <ItemTemplate>
                   <asp:Label ID="lable10" runat="server" Text='<%#Eval("extenction") %>'></asp:Label>
                   </ItemTemplate>
                   </asp:TemplateField>

                   </Columns>
                   </asp:GridView>