ASP.NET 2.0 新控件 Fileupload

ASP.NET 2.0 新控件 Fileupload

using System;
using System.Data;
using System.Configuration;
using System.Collections;
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 Upload : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //客户上传本地文件完全路径
        string strFileFull = FileUpload1.PostedFile.FileName;

        //上传文件名
        string strFileName = FileUpload1.FileName;

        //服务器用于存放上传文件的相对路径
        string strSerPath = Server.MapPath("../Test/");

        //存放上传文件的完全路径
        string strFullName = strSerPath + "UploadFile\\" + strFileName;

        //验证上传文件
        if (FileUpload1.HasFile)
        {
            string strFileExtension = System.IO.Path.GetExtension(strFileFull);
            string[] allowExtensions = { ".txt", ".jpg", ".gif", ".bmp", ".png" };

            //扩展名验证
            bool ExtensionOK = false;
            for (int i = 0; i < allowExtensions.Length; i++)
            {
                if (strFileExtension == allowExtensions[i])
                {
                    ExtensionOK = true;
                    break;
                }
                else
                    Label1.Text = "Unavailable file types.";
            }

            //文件名验证
            bool NameOK = false;
            if (!System.IO.File.Exists(strFullName))
                NameOK = true;
            else
                Label1.Text = "File name exist. Please choose another file";

            //上传文件
            if (ExtensionOK == true && NameOK == true)
            {
                try
                {
                    FileUpload1.SaveAs(strFullName);
                    Label1.Text = "Upload successful";
                }
                catch (Exception ex)
                {
                    Label1.Text = "Upload Faild.";
                }
            }
            else
                Label1.Text = "Upload failed. " + Label1.Text;
        }
        else
        {
            Label1.Text = "";
        }
    }
}