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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
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.Linq;
using System.Data.OleDb;
using System.IO;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)//首次执行页面
{
SFUPC();//页面执行一次将上传文件控件集到缓存中
}
}
protected void Btn_onLoad_Click(object sender, EventArgs e)
{
UpFile();//执行上传文件
}
protected void Btn_Add_Click(object sender, EventArgs e)
{
InsertC();//执行添加控件方法
}
protected void Btn_Seeinfo_Click(object sender, EventArgs e)
{
Response.Redirect("Default.aspx");
}
private void SFUPC()//该方法用于保存当前页面上传文件控件集到缓存中
{
ArrayList AL = new ArrayList();//创建动态增加数组
foreach (Control C in F.Controls)
{
if (C.GetType().ToString() == "System.Web.UI.HtmlControls.HtmlTableRow")
{
HtmlTableCell HTC = (HtmlTableCell)C.Controls[0];
foreach (Control FUC in HTC.Controls)
{
if (FUC.GetType().ToString() == "System.Web.UI.WebControls.FileUpload")
{
FileUpload FU = (FileUpload)FUC;
AL.Add(FU);
}
}
}
}
Session.Add("FilesControls", AL);
}
private void InsertC()//该方法用于添加一个上传文件的控件
{
ArrayList AL = new ArrayList();
this.F.Rows.Clear();
GetInfo();
HtmlTableRow HTR = new HtmlTableRow();
HtmlTableCell HTC = new HtmlTableCell();
HTC.Controls.Add(new FileUpload());
HTR.Controls.Add(HTC);
F.Rows.Add(HTR);
SFUPC();
}
private void GetInfo()//该方法用于读取缓存中存储的上传文件控件集
{
ArrayList AL = new ArrayList();
if (Session["FilesControls"] != null)
{
AL = (System.Collections.ArrayList)Session["FilesControls"];
for (int i = 0; i < AL.Count; i++)
{
HtmlTableRow HTR = new HtmlTableRow();
HtmlTableCell HTC = new HtmlTableCell();
HTC.Controls.Add((System.Web.UI.WebControls.FileUpload)AL[i]);
HTR.Controls.Add(HTC);
F.Rows.Add(HTR);
}
}
}
private void UpFile()//该方法用于执行文件上传操作
{
string FilePath = Server.MapPath("./") + "Images";
HttpFileCollection HFC = Request.Files;
for (int i = 0; i < HFC.Count; i++)
{
HttpPostedFile UserHPF = HFC[i];
string FileExtend = UserHPF.FileName.Substring(UserHPF.FileName.LastIndexOf(".") + 1);
string Filename = UserHPF.FileName.Substring(UserHPF.FileName.LastIndexOf("\\") + 1);
try
{
if (UserHPF.ContentLength > 0)
{
if (FileExtend == "jpg" || FileExtend == "bmp" || FileExtend == "gif" || FileExtend=="png")
{
if (UserHPF.ContentLength > (800* 600))
{
Response.Write("<script language=javascript>alert('你选择的图片太大!');location='Default2.aspx'</script>");
}
UserHPF.SaveAs(FilePath + "\\" + System.IO.Path.GetFileName(UserHPF.FileName));
OleDbConnection myCon = DB.Creatconnection();
myCon.Open();
string comStr = "insert into Imageinfo(ImageFileName,ImageFilePath,ImageDatetime) values('" + Filename + "','"
+ FilePath + "','" + DateTime.Now.ToShortDateString()+ "')";
OleDbCommand myCom = new OleDbCommand(comStr, myCon);
myCom.ExecuteNonQuery();
myCon.Close();
Response.Write("<script language=javascript>alert('上传成功!');location='Default.aspx'</script>");
}
else
{
Response.Write("<script language=javascript>alert('你选择的图片格式不正确!');location='Default2.aspx'</script>");
}
}
}
catch (Exception ex)
{
Response.Write("<script language=javascript>alert('+" + ex.Message + "');location='Default.aspx'</script>");
}
}
if (Session["FilesControls"] != null)
{
Session.Remove("FilesControls");
}
}
}