Default.aspx:
<%@ Page Language="C#" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<asp:FileUpload
ID="FileUpload1" runat="server" />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button"
/>
<asp:RegularExpressionValidator
ID="RegularExpressionValidator1" runat="server"
ControlToValidate="FileUpload1"
ErrorMessage="必须是 jpg或者gif文件"
ValidationExpression="^(([a-zA-Z]:)|(\\{2}\W+)\$?)(\\(\W[\W].*))+(.jpg|.Jpg|.gif|.Gif){$article$}quot;></asp:RegularExpressionValidator>
</form>
</body>
</html>
Default.aspx.cs:
using System;
using
System.Data;
using System.Configuration;
using System.Web;
using
System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
}
protected void
Button1_Click(object sender, EventArgs
e)
{
String savePath = @"F:\111\";
if
(FileUpload1.HasFile)
{
String file
