1using System;
  2using System.Data;
  3using System.Configuration;
  4using System.Collections;
  5using System.Web;
  6using System.Web.Security;
  7using System.Web.UI;
  8using System.Web.UI.WebControls;
  9using System.Web.UI.WebControls.WebParts;
 10using System.Web.UI.HtmlControls;
 11using System.IO;
 12using System.Data.SqlClient;
 13
 14public partial class userfile : System.Web.UI.UserControl
 15...{
 16    string msgtext = "";//操作出错或时显示的变量
 17    bool isvip = Roles.IsUserInRole("vip");//获取当前用户是不是可以匿名访问的用户
 18    protected void Page_Load(object sender, EventArgs e)
 19    ...{
 20        if (!IsPostBack)
 21        ...{
 22            this.Panel1.Attributes.Add("style", "float:left");//诶,找不到设置float样式的地方,只能这样搞了
 23            ViewState["username"]=Membership.GetUser().UserName;
 24            ViewState["root"] = ViewState["rootpath"] = Server.MapPath("./" + this.DropDownList1.SelectedValue + "/" + ViewState["username"]);//得到当前用户默认的跟路径
 25            this.Panel1.Visible = isvip;//是否可以使用VIP功能
 26            bindgv();//只绑定一次,否则对文件操作后重新绑定时,对控件绑定两次将会报"回发或回调参数无效"的错误
 27        }
 28    }
 29    //上传按钮的操作
 30    protected void Buttonup_Click(object sender, EventArgs e)
 31    ...{
 32        string fn = this.FileUpload1.FileName;
 33        if (fn.Length < 1) this.msg.Text = "请选择文件后在上传";
 34        else
 35        ...{
 36            bool bl = true;//默认标识:可以上传
 37            string thiskzm = fn.Substring(fn.LastIndexOf('.'));//获取上传的文件扩展名
 38            //说明各等级用户 不可以上传的文件类型
 39            string[] vip = ...{ "" };
 40            string[] user =...{ ".php", ".aspx",".cs" };
 41            string[] kzms = isvip ? vip : user;
 42            foreach (string kzm in kzms)
 43            ...{
 44                if (thiskzm.Equals(kzm, StringComparison.OrdinalIgnoreCase))
 45                ...{
 46                    bl = false;
 47                    break;
 48                }
 49            }
 50            if (bl)//表示找到了与不合法的文件类型
 51            ...{
 52                string fp = ViewState["rootpath"].ToString() + "/" + fn;
 53                if (this.CheckBox1.Checked)
 54                    this.FileUpload1.SaveAs(fp);
 55                else if (File.Exists(fp))
 56                    msgtext = "有同名的文件存在";
 57                else this.FileUpload1.SaveAs(fp);
 58                this.bindgv();
 59            }
 60            else this.msg.Text = "上传的文件类型不正确";
 61        }
 62        this.msg.Visible = this.msg.Text.Length > 1;
 63    }
 64
 65    //实例化一个可供DataSet增加用的数据表,然后通过DataSet把数据绑定到GridView中显示
 66    private void bindgv()
 67    ...{
 68        if (!Directory.Exists(ViewState["rootpath"].ToString()))
 69            Directory.CreateDirectory(ViewState["rootpath"].ToString());
 70        DirectoryInfo di = new DirectoryInfo(ViewState["rootpath"].ToString());
 71        DataTable DT = new DataTable();
 72        DT.Columns.Add("filename");
 73        DT.Columns.Add("filesize");
 74        DT.Columns.Add("writetime");
 75        DT.Columns.Add("fileurl");
 76        //Response.Write(DT.Columns.Count+"列");
 77        foreach (DirectoryInfo s in di.GetDirectories())
 78        ...{
 79            DT.Rows.Add(s.Name, "", gettime(s.LastWriteTime), ViewState["rootpath"].ToString() + s.Name);
 80        }
 81        foreach (FileInfo f in di.GetFiles())//将每条信息遍历到表里
 82        ...{
 83            long length = 0;
 84            length = f.Length;//计算文件大小,老是计算为0???...
 85            DT.Rows.Add(f.Name, Convert.ToString(length)+"字节", gettime(f.LastWriteTime), ViewState["rootpath"].ToString()+"/"+f.Name);
 86        }
 87        //然后将表添加到内存数据库里， 绑定出来
 88        DataSet ds = new DataSet();
 89        ds.Tables.Add(DT);
 90        this.GridView1.DataKeyNames = new string[]...{ "filename" };
 91        this.GridView1.DataSource = ds;
 92        this.GridView1.DataBind();
 93        DT.Clear();
 94        if(msgtext=="")
 95            msgtext += this.GridView1.Rows.Count < 1 ? "<br />没有任何文件和文件夹" : "";
 96        this.msg.Text = msgtext;
 97        this.msg.Visible = msgtext != "" ? true : false;
 98    }
 99    private string gettime(DateTime sj)
100    ...{
101        return sj.Year + "/" + sj.Month + "/" + sj.Day + "　" + sj.Hour + "：" + sj.Minute;
102    }
103
104    //建立文件夹操作
105    protected void Button1_Click(object sender, EventArgs e)
106    ...{
107        Directory.CreateDirectory(ViewState["rootpath"].ToString() + "/" + this.TextBox1.Text);
108        bindgv();
109    }
110
111    //当点击了GridView1的删除操作
112    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
113    ...{
114        string path = ViewState["rootpath"].ToString() + "/" + this.GridView1.DataKeys[e.RowIndex].Value.ToString();
115        if (Directory.Exists(path))
116            if (Directory.GetDirectories(path).Length < 1 && Directory.GetFiles(path).Length < 1)
117                Directory.Delete(path);
118            else msgtext = "目录不是空的";
119        else File.Delete(path);
120        bindgv();
121    }
122
123    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
124    ...{
125        this.GridView1.EditIndex = e.NewEditIndex;
126        bindgv();
127    }
128    protected void LinkButton3_Click(object sender, EventArgs e)
129    ...{
130        this.GridView1.EditIndex = -1;
131        bindgv();
132    }
133    protected void save_Click(object sender, EventArgs e)
134    ...{
135        string path1 = this.GridView1.DataKeys[this.GridView1.EditIndex].Value.ToString();//取得文件或路径原名
136        string path2 = ((TextBox)this.GridView1.Rows[this.GridView1.EditIndex].FindControl("TextBox2")).Text;//取得文件或路径修改后的名称
137        if (Directory.Exists(ViewState["rootpath"].ToString() + "/" + path1))
138            Directory.Move(ViewState["rootpath"].ToString() + "/" + path1, ViewState["rootpath"].ToString() + "/" + path2);
139        else File.Move(ViewState["rootpath"].ToString() + "/" + path1, ViewState["rootpath"].ToString() + "/" + path2);
140        this.GridView1.EditIndex = -1;
141        bindgv();
142    }
143    protected void LinkButton2_Command(object sender, CommandEventArgs e)
144    ...{
145        string path = ViewState["rootpath"].ToString() + "/" + e.CommandArgument.ToString();
146        if (Directory.Exists(path)) ViewState["rootpath"] = path;
147        bindgv();
148    }
149    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
150    ...{
151        ViewState["root"] = ViewState["rootpath"] = Server.MapPath("./" + this.DropDownList1.SelectedValue + "/" + ViewState["username"]);
152        bindgv();
153    }
154    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
155    ...{
156        if (ViewState["root"].ToString() != ViewState["rootpath"].ToString())
157        ...{
158            string pathstr = ViewState["rootpath"].ToString();
159            ViewState["rootpath"] = Directory.GetParent(ViewState["rootpath"].ToString());//Path.GetDirectoryName(ViewState["rootpath"].ToString());
160            bindgv();
161        }
162        else
163        ...{
164            msgtext = "目前位置是根目录";
165            this.msg.Text = msgtext;
166            this.msg.Visible = true;
167        }
168        //Response.Write(" r o ot路径是:" + ViewState["root"].ToString() + "<br /> rootpath路径是" + ViewState["rootpath"].ToString() + "<br />");
169    }
170
171    //组建文件路径信息,这步有点麻烦.不过细心点就行
172    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
173    ...{
174        string fname="";
175        if (e.Row.RowType == DataControlRowType.DataRow)
176        ...{
177            try
178            ...{
179                fname = ((LinkButton)e.Row.FindControl("LinkButton2")).CommandArgument.ToString();
180            }
181            catch (Exception)
182            ...{
183                fname = ((TextBox)e.Row.FindControl("TextBox2")).Text;
184            }
185            HyperLink hl = ((HyperLink)e.Row.FindControl("HyperLink1"));
186            HyperLink bj = ((HyperLink)e.Row.FindControl("bianji"));
187            LinkButton lb = ((LinkButton)e.Row.FindControl("LinkButton2"));
188            string path = ViewState["rootpath"].ToString() + "/" + fname;
189            if (Directory.Exists(path))
190            ...{
191                hl.Text = "";
192                lb.Text = fname;
193                bj.Text = "";
194            }
195            else
196            ...{
197                string url = Request.Url.AbsoluteUri;
198                url = url.Replace("admin.aspx", "");
199                hl.Target = "_blank";
200                int wz = path.IndexOf("public");
201                if (wz == -1) wz = path.IndexOf("private");
202                path = path.Replace("\\", "/");
203                string urlpath = path.Substring(wz);
204                hl.NavigateUrl = url + urlpath;
205                bj.NavigateUrl = "edit.aspx?" +urlpath;
206                bj.Target = "_blank";
207                lb.Text = "";
208            }
209        }
210    }
211    protected void Button2_Click(object sender, EventArgs e)
212    ...{
213        StreamWriter sw = File.CreateText(ViewState["rootpath"].ToString() + "\\" + this.filename.Text);
214        sw.Close();//必须先关闭才可编辑
215        bindgv();
216        this.msgtext = "文件创建成功";
217    }
218}
219