<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Demo1.aspx.cs" Inherits="Demo.Demo1" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:FileUpload ID="FileUpLoadDemo" runat="server"/><br /> <asp:Button ID="ButtonSubmit" runat="server" Text="提交" OnClick="ButtonSubmit_Click"/> </div> </form> </body> </html>
Code:
using System; namespace Demo { public partial class Demo1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void ButtonSubmit_Click(object sender, EventArgs e) { //上傳的資料夾路徑 string folderPath = Server.MapPath("~/images/"); //判斷FileUpLoad有沒有檔案 if (FileUpLoadDemo.HasFile) { //取得上傳的檔案名稱 string fileName = FileUpLoadDemo.FileName; //取得檔案附檔名 string extension = System.IO.Path.GetExtension(fileName); //是否為jpg檔案 if (extension.Equals(".jpg")) { //將檔案上傳到資料夾路徑 FileUpLoadDemo.SaveAs(folderPath + fileName); Response.Write("<script>alert('上傳成功');</script>"); } else Response.Write("<script>alert('檔案不符合上傳條件');</script>"); } else Response.Write("<script>alert('您讓未選擇檔案');</script>"); } } }