C#磁盘大小管理操作类

继续备忘。。

/***************************************************************************************************
 * Filename:            DriveInfoLibrary.cs
 * Module:              磁盘管理操作类
 * Copyright:           2008 穗联软件 版权所有
 * Author:              周林郁
 * Created Date:        2008-10-20
 * Last Modified Data:  
 * Description:          
***************************************************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace MonitorService.IOLibrary
{
    /// <summary>
    /// 磁盘驱动器信息实体
    /// </summary>
    public class DriveInfoModel
    {
        /// <summary>
        /// 磁盘名称
        /// </summary>
        public string DriveName{get;set;}
        /// <summary>
        /// 磁盘总容量
        /// </summary>
        public string DriveSize { get; set; }
        /// <summary>
        /// 磁盘剩余空间
        /// </summary>
        public string DriveFree { get; set; }
        /// <summary>
        /// 磁盘已使用空间
        /// </summary>
        public string DriveSpent { get; set; }
        /// <summary>
        /// 磁盘格式FAT,FAT32,NTFS
        /// </summary>
        public string DriveFormat{get;set;}
    }
    public class IOInfo
    {
        /// <summary>
        /// 获取所有磁盘驱动器信息
        /// </summary>
        /// <returns></returns>
        public static IList<DriveInfoModel> GetAllDrive()
        {

            IList<DriveInfoModel> models = new List<DriveInfoModel>();                      //实例化列表
            DriveInfo[] dis = DriveInfo.GetDrives();                                        //获取当前所有磁盘信息
            foreach (DriveInfo di in dis)                                                   //叠代分析当前磁盘
            {
                if (di.DriveType == DriveType.Fixed && di.IsReady)                          //只找硬盘磁盘
                {
                    DriveInfoModel model = new DriveInfoModel();
                    model.DriveFormat = di.DriveFormat;                                     //磁盘格式
                    model.DriveName = di.Name;                                              //磁盘名称
                    //string.Format("{0:0,00}",a);// 12,345,678
                    //model.DriveSize = (di.TotalSize / 1024 / 1024).ToString("n") + "MB";         //磁盘大小计算

                    //model.DriveSize = string.Format("{0:0,00}",di.TotalSize / 1024 / 1024) + " MB";         //磁盘大小计算
                    //model.DriveFree = string.Format("{0:0,00}",di.TotalFreeSpace / 1024 / 1024) + " MB";
                    //model.DriveSpent = string.Format("{0:0,00}", (di.TotalSize - di.TotalFreeSpace) / 1024 / 1024) + " MB";
                    
                    model.DriveSize = (di.TotalSize / 1024 / 1024).ToString();         //磁盘大小计算
                    model.DriveFree = (di.TotalFreeSpace / 1024 / 1024).ToString();
                    model.DriveSpent = ((di.TotalSize - di.TotalFreeSpace) / 1024 / 1024).ToString();
                    
                    models.Add(model);
                }
            }
            return models;
        }
        public static DriveInfoModel GetDrive(string DriveName)
        {
            DriveInfo[] dis = DriveInfo.GetDrives();
            foreach (DriveInfo di in dis)
            {
                if (di.DriveType == DriveType.Fixed && di.IsReady && di.Name.Substring(0, 1).ToUpper() == DriveName.ToUpper())
                {
                    DriveInfoModel model = new DriveInfoModel();
                    model.DriveFormat = di.DriveFormat;                                     //磁盘格式
                    model.DriveName = di.Name;                                              //磁盘名称
                    //string.Format("{0:0,00}",a);// 12,345,678
                    //model.DriveSize = (di.TotalSize / 1024 / 1024).ToString("n") + "MB";         //磁盘大小计算
                    model.DriveSize = (di.TotalSize / 1024 / 1024).ToString();         //磁盘大小计算
                    model.DriveFree = (di.TotalFreeSpace / 1024 / 1024).ToString();
                    model.DriveSpent = ((di.TotalSize - di.TotalFreeSpace) / 1024 / 1024).ToString();
                    return model;
                }
            }
            return null;
        }
        /// <summary>
        /// 获取指定文件夹的大小
        /// </summary>
        /// <param name="path">目录路径 C:\\VideoStream\\</param>
        /// <returns>Null则表示文件夹不存在</returns>
        public static string  GetDirectorySize(string path)
        {
            //取得目录大小
            long l=getDirectorySize(path);
            if (l == -1)
                //目录无效
                return null;
            else
            {
                //根据大小返回不同单位
                if ((l / 1024) < 1024)
                {
                    return (l / 1024).ToString() + "KB";
                }
                else
                {
                    return (l / 1024 / 1024).ToString()+"MB";
                }
            }
                
        }
        /// <summary>
        /// 获取指定文件夹的大小
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        private  static long getDirectorySize(string path)
        {
            long result = 0;
            DirectoryInfo info = new DirectoryInfo(path);
            //目录无效
            if (!info.Exists) return -1;
            foreach (FileInfo fi in info.GetFiles())
            {
                //累加当前文件的大小
                result += fi.Length;
            }
            foreach (DirectoryInfo di in info.GetDirectories())
            {
                //累加当前文件夹大小，递归
                result+=getDirectorySize(di.FullName);
            }
            return result;   
        }
        /// <summary>
        /// 删除指定的文件夹
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public static bool DeleteDirectory(string path)
        {
            DirectoryInfo info = new DirectoryInfo(path);
            //目录无效
            if (!info.Exists) return false;
            bool result = false;
            try
            {
                info.Delete(true);//删除动作
                result = true;
            }
            catch
            {
                result = false;
            }
            return result;
        }
        /// <summary>
        /// 清除指定文件夹里面的文件，文件夹
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public static bool ClearDirectory(string path)
        {
            DirectoryInfo info = new DirectoryInfo(path);
            //目录无效
            if (!info.Exists) return false;
            bool result = false;
            try
            {

                foreach (DirectoryInfo di in info.GetDirectories())
                {//删除指定文件夹下面的所有文件夹
                    di.Delete(true);
                }
                foreach (FileInfo fi in info.GetFiles())
                {//删除指定文件夹下面的所有文件
                    fi.Delete();
                }
                result = true;
            }
            catch
            {
                result = false;
            }

            return result;
        }
    }
}