ASP.NET基本控件FileUpload上传控件

前台代码：

<asp:FileUpload ID="FileUpload" runat="server" />

<asp:Button ID="BtnUp" runat="server" onclick="BtnUp_Click" Text="上 传" />

<asp:Label ID="LabMsg" runat="server"></asp:Label>

后台代码：

using System;

using System.Collections.Generic;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;



namespace docnet

{

    public partial class up : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {



        }



        protected void BtnUp_Click(object sender, EventArgs e)

        {

            if (FileUpload.HasFile)

            {

                string savePath = Server.MapPath("~/upload/");//指定上传文件在服务器上的保存路径

                //检查服务器上是否存在这个物理路径，如果不存在则创建

                if (!System.IO.Directory.Exists(savePath))

                {

                    System.IO.Directory.CreateDirectory(savePath);

                }

                savePath = savePath + "\\" + FileUpload.FileName;

                FileUpload.SaveAs(savePath);

                LabMsg.Text = string.Format("<a href='upload/{0}'>upload/{0}</a>", FileUpload.FileName);

            }

            else

            {

                LabMsg.Text = "你还没有选择上传文件!";

            }

        }

    }

}