Asp.Net Regular Expression Example
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="index.aspx.cs" Inherits="index" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <asp:TextBox ID="TextBox1" runat ="server" > </asp:TextBox> <asp:RegularExpressionValidator ID="re1" runat ="server" ControlToValidate ="TextBox1" ErrorMessage ="Invalid Mail" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator> <br /> <asp:Button ID="Button1" runat ="server" Text ="Check" /> </form> </body> </html>