string xlsPath = this.FileUpload1.PostedFile.FileName;
string xlsPath = Server.MapPath("~/Excel/客戶需求表.xls");

兩者區別:
前者是物理路徑,后者是服務器路徑. FileUpload ful = new FileUpload();

????????ful.FileName;?? //文件件
????????ful.PostedFile.ContentLength;//文件大小,單位 B,除以 1024得到 K
????????ful.PostedFile.FileName;//完全路徑



protected void Button1_Click(object sender, EventArgs e)
????{
????????Boolean fileOK = false;
????????String path = Server.MapPath("~/UploadedImages/");
????????if (FileUpload1.HasFile)
????????{
????????????String fileExtension =
????????????????System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
????????????String[] allowedExtensions =
????????????????{ ".gif", ".png", ".jpeg", ".jpg" };
????????????for (int i = 0; i < allowedExtensions.Length; i++)
????????????{
????????????????if (fileExtension == allowedExtensions)
????????????????{
????????????????????fileOK = true;
????????????????}
????????????}
????????}
????????if (fileOK)
????????{
????????????try
????????????{
????????????????FileUpload1.PostedFile.SaveAs(path
????????????????????+ FileUpload1.FileName);
????????????????Label1.Text = "File uploaded!";
????????????}
????????????catch (Exception ex)
????????????{
????????????????Label1.Text = "File could not be uploaded.";
????????????}
????????}
????????else
????????{
????????????Label1.Text = "Cannot accept files of this type.";
????????}
????}

轉載于:https://www.cnblogs.com/MySpace/archive/2009/11/10/1599826.html

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