Problem when viewing data from a grid within the code behind

In a GridView I'm trying to get the data for a row where checkbox == true .

I can get the value of the checkbox, but I can not get the other values for the line.

while (i < gvwNot.Rows.Count)
{
    GridViewRow row = gvwNot.Rows[i];
    CheckBox isChecked = (CheckBox)row.FindControl("chkSelect");
    //TextBox id = (TextBox)row.FindControl("ID");
    //TextBox nome = (TextBox)row.FindControl("NOME");

    if (isChecked.Checked == true)
    {
        string id = gvwNot.Rows[i].Cells[1].Text;
        string nome = gvwNot.Rows[i].Cells[3].Text;

        qry = sb.ToString();
        qtd = qtd + 1;
    }

    i++;
}



<asp:GridView ID="gvwNot" runat="server"
    AutoGenerateColumns="False"
    DataKeyNames="Id"
    AllowPaging="True"
    AllowSorting="true"
    PageSize="10"
    CssClass="table table-bordered table-hover table-striped" >

    <Columns>
         <asp:TemplateField HeaderText="Select">
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" runat="server" />
            </ItemTemplate>
            <HeaderTemplate>
                <input id="chkAll" onclick="javascript: SelecionaTodosChecks(this);" runat="server" type="checkbox"  />
            </HeaderTemplate>
        </asp:TemplateField>


        <asp:TemplateField HeaderText="Id">
            <ItemTemplate><%#Eval("ID") %>    </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Protocolo">
            <ItemTemplate><%#Eval("NOME") %>    </ItemTemplate>
        </asp:TemplateField>

    </Columns>
    <PagerSettings Mode="NextPrevious" NextPageText="Próximo" PreviousPageText="Anterior" />
</asp:GridView>