asp.net 獲取指定文件夾下所有子目錄及文件(樹形)

#region 獲取指定文件夾下所有子目錄及文件(樹形)
        /****************************************
         * 函數名稱：GetFoldAll(string Path)
         * 功能說明：獲取指定文件夾下所有子目錄及文件(樹形)
         * 參    數：Path:詳細路徑
         * 調用示列：
         *           string strDirlist = Server.MapPath("templates");       
         *           this.Literal1.Text = EC.FileObj.GetFoldAll(strDirlist);  
        *****************************************/
        /// <summary>
        /// 獲取指定文件夾下所有子目錄及文件
        /// </summary>
        /// <param name="Path">詳細路徑</param>
        public static string GetFoldAll(string Path)
        {

            string str = "";
            DirectoryInfo thisOne = new DirectoryInfo(Path);
            str = ListTreeShow(thisOne, 0, str);
            return str;

        }

        /// <summary>
        /// 獲取指定文件夾下所有子目錄及文件函數
        /// </summary>
        /// <param name="theDir">指定目錄</param>
        /// <param name="nLevel">默認起始值,調用時,一般為0</param>
        /// <param name="Rn">用于迭加的傳入值,一般為空</param>
        /// <returns></returns>
        public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn)//遞歸目錄 文件
        {
            DirectoryInfo[] subDirectories = theDir.GetDirectories();//獲得目錄
            foreach (DirectoryInfo dirinfo in subDirectories)
            {

                if (nLevel == 0)
                {
                    Rn += "├";
                }
                else
                {
                    string _s = "";
                    for (int i = 1; i <= nLevel; i++)
                    {
                        _s += "│ ";
                    }
                    Rn += _s + "├";
                }
                Rn += "<b>" + dirinfo.Name.ToString() + "</b><br />";
                FileInfo[] fileInfo = dirinfo.GetFiles();   //目錄下的文件
                foreach (FileInfo fInfo in fileInfo)
                {
                    if (nLevel == 0)
                    {
                        Rn += "│ ├";
                    }
                    else
                    {
                        string _f = "";
                        for (int i = 1; i <= nLevel; i++)
                        {
                            _f += "│ ";
                        }
                        Rn += _f + "│ ├";
                    }
                    Rn += fInfo.Name.ToString() + " <br />";
                }
                Rn = ListTreeShow(dirinfo, nLevel + 1, Rn);

            }
            return Rn;
        }

 

        /****************************************
         * 函數名稱：GetFoldAll(string Path)
         * 功能說明：獲取指定文件夾下所有子目錄及文件(下拉框形)
         * 參    數：Path:詳細路徑
         * 調用示列：
         *            string strDirlist = Server.MapPath("templates");      
         *            this.Literal2.Text = EC.FileObj.GetFoldAll(strDirlist,"tpl","");
        *****************************************/
        /// <summary>
        /// 獲取指定文件夾下所有子目錄及文件(下拉框形)
        /// </summary>
        /// <param name="Path">詳細路徑</param>
        ///<param name="DropName">下拉列表名稱</param>
        ///<param name="tplPath">默認選擇模板名稱</param>
        public static string GetFoldAll(string Path,string DropName,string tplPath)
        {
            string strDrop = "<select name=\"" + DropName + "\" id=\"" + DropName + "\"><option value=\"\">--請選擇詳細模板--</option>";
            string str = "";
            DirectoryInfo thisOne = new DirectoryInfo(Path);
            str = ListTreeShow(thisOne, 0, str,tplPath);
            return strDrop+str+"</select>";

        }

        /// <summary>
        /// 獲取指定文件夾下所有子目錄及文件函數
        /// </summary>
        /// <param name="theDir">指定目錄</param>
        /// <param name="nLevel">默認起始值,調用時,一般為0</param>
        /// <param name="Rn">用于迭加的傳入值,一般為空</param>
        /// <param name="tplPath">默認選擇模板名稱</param>
        /// <returns></returns>
        public static string ListTreeShow(DirectoryInfo theDir, int nLevel, string Rn,string tplPath)//遞歸目錄 文件
        {
            DirectoryInfo[] subDirectories = theDir.GetDirectories();//獲得目錄

            foreach (DirectoryInfo dirinfo in subDirectories)
            {

                Rn += "<option value=\"" + dirinfo.Name.ToString() + "\"";
                if (tplPath.ToLower() == dirinfo.Name.ToString().ToLower())
                {
                    Rn += " selected ";
                }
                Rn += ">";

                if (nLevel == 0)
                {
                    Rn += "┣";
                }
                else
                {
                    string _s = "";
                    for (int i = 1; i <= nLevel; i++)
                    {
                        _s += "│ ";
                    }
                    Rn += _s + "┣";
                }
                Rn += "" + dirinfo.Name.ToString() + "</option>";

                FileInfo[] fileInfo = dirinfo.GetFiles();   //目錄下的文件
                foreach (FileInfo fInfo in fileInfo)
                {
                    Rn += "<option value=\"" + dirinfo.Name.ToString()+"/"+fInfo.Name.ToString() + "\"";
                    if (tplPath.ToLower() == fInfo.Name.ToString().ToLower())
                    {
                        Rn += " selected ";
                    }
                    Rn += ">";

                    if (nLevel == 0)
                    {
                        Rn += "│ ├";
                    }
                    else
                    {
                        string _f = "";
                        for (int i = 1; i <= nLevel; i++)
                        {
                            _f += "│ ";
                        }
                        Rn += _f + "│ ├";
                    }
                    Rn += fInfo.Name.ToString() + "</option>";
                }
                Rn = ListTreeShow(dirinfo, nLevel + 1, Rn, tplPath);

            }
            return Rn;
        }
        #endregion

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