1 Email:
2 <asp:TextBox ID="TextBox1" Runat="server"></asp:TextBox>
3
4 <asp:RegularExpressionValidator ID="RegularExpressionValidator1"
5 Runat="server" ControlToValidate="TextBox1"
6 Text="You must enter an email address"
7 ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">
8 </asp:RegularExpressionValidator>
