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 : [color=#FF0000]System[/color].Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void FileUpload_Button_Click(object sender, EventArgs e)
    {
        try
        {
            if (FileUpload1.PostedFile.FileName == "")
            //if (FileUpload1.FileName == "") 
            //if (!FileUpload1.HasFile)     //获取一个值，该值指示 System.Web.UI.WebControls.FileUpload 控件是否包含文件。包含文件，则为 true；否则为 false。 
            {
                this.Upload_info.Text = "请选择上传文件！";
            }
            else
            {
                string filepath = FileUpload1.PostedFile.FileName;  //得到的是文件的完整路径,包括文件名，如：C:\Documents and Settings\Administrator\My Documents\My Pictures\20022775_m.jpg 
                //string filepath = FileUpload1.FileName;               //得到上传的文件名20022775_m.jpg 
                string filename = filepath.Substring(filepath.LastIndexOf("\\") + 1);//20022775_m.jpg 
                string serverpath = Server.MapPath("~/images/") + filename;//取得文件在服务器上保存的位置C:\Inetpub\wwwroot\WebSite1\images\20022775_m.jpg 
                FileUpload1.PostedFile.SaveAs(serverpath);//将上传的文件另存为 
                this.Upload_info.Text = "上传成功！";
            }
        }
        catch (Exception ex)
        {
            this.Upload_info.Text = "上传发生错误！原因是：" + ex.ToString();
        }
    }
}