UI/aadmin/adadd.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;

using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

using System.Xml;
using System.IO;

public partial class admin_flashadd : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            ImageButton1.Visible = false;
            
        }

    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        if (FileUpload1.HasFile == false)
        {
            msg("您还没有选择图片！");
            return;
        }
        else
        {



            string filepath = FileUpload1.PostedFile.FileName;

            string fileEx = filepath.Substring(filepath.LastIndexOf(".") + 1);

            if (fileEx == "jpg" || fileEx == "bmp" || fileEx == "gif" || fileEx == "jpeg" || fileEx == "png")
            {

                string newfilename = "index_" + System.DateTime.Now.ToString("yyyyMMddhhmmssfff") + "." + fileEx;

                FileUpload1.PostedFile.SaveAs(Server.MapPath("~/flash/" + newfilename));

                string savepath = "flash/" + newfilename;
                ImageButton1.ImageUrl = "~/flash/" + newfilename;

                TextBox1.Text = savepath;
                ImageButton1.Visible = true;

            }
            else
            {
                msg("你上传文件格式不正确！！！");
                return;