scusa ma ho ancora qualche problema,

il mio codice e' questo:


<TABLE class="btable" id="tablel" cellSpacing="1" cellPadding="1" width="300">
<TR>
<TD class="testo" width="62">UserID</TD>
<TD class="testo" Width="153"><asp:TextBox id="userIDTB" runat="server" Width="152px"></asp:TextBox></TD>
<TD><asp:RequiredFieldValidator id="_userIDRFV" runat="server" ErrorMessage="User id is required" ControlToValidate="userIDTB">*</asp:RequiredFieldValidator></TD>
</TR>
<TR>
<TD class="testo" width="62">Password</TD>
<TD class="testo" Width="153"><asp:TextBox id="passwordTB" runat="server" TextMode="Password" Width="152px"></asp:TextBox></TD>
<TD><asp:RequiredFieldValidator id="_passwordIDRFV" runat="server" ErrorMessage="Password is required" ControlToValidate="passwordTB">*</asp:RequiredFieldValidator></TD>
</TR>
<TR>
<TD width="62"></TD>
<TD width="153"><asp:ValidationSummary id="_VS" runat="server" CssClass="testo"></asp:ValidationSummary></TD>
<TD align="right"><asp:LinkButton id="_loginLB" runat="server" CssClass="link">login</asp:LinkButton></TD>
</TR>
</TABLE>




dove devo inserire l'evento?
grazie ancora