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;
using System.Data.SqlClient;
using System.IO;
using Brettle.Web.NeatUpload;
public partial class Admin_UpdateUserPwd : System.Web.UI.Page
{
DM dm = new DM();
protected void Page_Load(object sender, EventArgs e)
{
//判断用户是否是管理员登录...
if (Session["AdminUserName"] == null)
{
//返回到上一个页面
Response.Write("<script>history.back()</script>");
//跳转到登录页面
Server.Transfer("~/Admin/AdminLogin.aspx");
}
if (!IsPostBack)
{
//页面加载时,绑定市县信息
DataSet ds = dm.GetData("select code,name from Unit where code like '____00000000'order by code");
this.ddlCity.DataSource = ds;
this.ddlCity.DataTextField = "name";
this.ddlCity.DataValueField = "code";
this.ddlCity.DataBind();
if (this.ddlCity.Items.Count > 0) this.ddlCounty.SelectedIndex = 0;
set_ddl_coun();
if (ddlCounty.SelectedIndex == 0)
{
ddlTown.Visible = false;
}
else
{
if (this.ddlCounty.Items.Count > 0) this.ddlTown.SelectedIndex = 0;
set_ddl_town();
}
}
}
//市级下拉引起县级级联提取出来的公共方法
void set_ddl_coun()
{
DM dm = new DM();
string citycode = ddlCity.SelectedValue;
if (citycode == "340000000000")
{
this.ddlCounty.Visible = false;
this.ddlCounty.Items.Clear();
}
else
{
this.ddlCounty.Visible = true;
this.ddlCounty.Items.Clear();
}
DataSet ds = dm.GetData("select code,name from Unit where code like '" + citycode.Substring(0, 4) + "__000000'order by code");
this.ddlCounty.DataSource = ds;
this.ddlCounty.DataTextField = "name";
this.ddlCounty.DataValueField = "code";
this.ddlCounty.DataBind();
if (this.ddlCounty.Items.Count > 0) this.ddlCounty.SelectedIndex = 0;
}
//市级选择引起县级联动
protected void ddlCity_SelectedIndexChanged(object sender, EventArgs e)
{
set_ddl_coun();
}
//大容量文件上传功能
protected void BtnUP_Click(object sender, EventArgs e)
{
string cityName = this.ddlCity.SelectedItem.Text.ToString();
string countyName = this.ddlCounty.SelectedItem.Text.ToString();
string townName = this.ddlTown.SelectedItem.Text.ToString();
//将文件上传到UpLoads/市名/县名/镇名文件夹下去
FileUpLoad(AttachFile, cityName+"//"+countyName+"//"+townName);
}
/// <summary>
/// 上传文件功能
/// </summary>
/// <param name="fulFile">上传控件 </param>
/// <param name="DirectionName">文件所放的父文件夹 </param>
/// <returns> </returns>
public void FileUpLoad(InputFile fulFile,string DirectionName)
{
string FileName;
string FileSavePath;
string newFileName;
FileSavePath = Server.MapPath("UpLoads/"); //获取文件存放的根路径
if (fulFile.HasFile) //判断是否选择了要上传的文件
{
FileName = this.AttachFile.FileName;//获取上传文件的文件名,包括后缀
//FileInfo file = new FileInfo(FileName);
string ExtenName = System.IO.Path.GetExtension(FileName);//获取扩展名
newFileName = DateTime.Now.ToString("yyyyMMddhhmm") + ExtenName;
float FileSize = (float)System.Math.Round((float)fulFile.ContentLength / 1024000, 1); //获取文件大小并保留小数点后一位,单位是M
if (!File.Exists(FileSavePath + "//" + DirectionName))
{
Directory.CreateDirectory(FileSavePath + "//" + DirectionName); //如果文件存放的文件夹不存在，则创建该文件夹
}
FileSavePath += DirectionName + "//"+newFileName;
//判断所上传的文件文件是否存在
if (!File.Exists(FileSavePath))
{
try
{
fulFile.MoveTo(FileSavePath, Brettle.Web.NeatUpload.MoveToOptions.Overwrite);
}
catch (Exception Error)
{
HttpContext.Current.Response.Write(" <script>alert('" + Error.Message + "') </script>");
return;
}
}
else
{
//在该处操作基本与上相同，只是不用创建文件夹了
}
}
else
{
HttpContext.Current.Response.Write(" <script>alert('请选择要上传的文件') </script>");
return;
}
HttpContext.Current.Response.Write(" <script>alert('文件上传成功！') </script>");
//文件上传成功以后，将信息保存到数据库中去，包含的信息由文件名，文件所属县，文件上传时间。
string cityName = this.ddlCity.SelectedItem.Text.ToString(); //文件所属市名称
string countyName = this.ddlCounty.SelectedItem.Text.ToString(); //文件所属县名称
string townName = this.ddlTown.SelectedItem.Text.ToString(); //文件所属镇名称
string filePath = FileSavePath; //文件路径名称
string fileName = newFileName;
string strSQL = "insert into UploadInfo values('"+filePath+"','"+fileName+"','"+DateTime.Now.ToString()+"','"+cityName+"','"+countyName+"','"+townName+"')";
int ret = dm.SetData(strSQL);
if (ret > 0)
{
//说明上传文件的同时向数据库中写入了文件的相关信息
//Response.Write("<script>alert('文件信息写入数据库成功!')</script>");
}
}
//县级下拉引起镇级级联提取出来的公共方法
void set_ddl_town()
{
DM dm = new DM();
string countycode = ddlCounty.SelectedValue;
if (countycode == ddlCounty.SelectedValue.ToString().Substring(0, 4) + "__000000")
{
if (ddlCounty.SelectedIndex == 0)
{
this.ddlTown.Visible = false;
this.ddlTown.Items.Clear();
}
else
{
this.ddlTown.Visible = true;
this.ddlTown.Items.Clear();
}
}
else
{
this.ddlTown.Visible = true;
this.ddlTown.Items.Clear();
}
DataSet ds = dm.GetData("select code,name from Unit where code like '" + countycode.Substring(0, 6) + "___000'order by code");
this.ddlTown.DataSource = ds;
this.ddlTown.DataTextField = "name";
this.ddlTown.DataValueField = "name";
this.ddlTown.DataBind();
if (this.ddlTown.Items.Count > 0) this.ddlTown.SelectedIndex = 0;
}
//县级选择引起镇级联动
protected void ddlCounty_SelectedIndexChanged(object sender, EventArgs e)
{
set_ddl_town();
}
}
上面使用了一个免费的大文件上传空间，NetUpload控件。