C# 获取硬盘空间信息 盘符总大小、剩余空间、已用空间

1.如图，项目首先要添加对 System.Management 的引用

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2.新建hardDiskPartition.cs 盘符信息类

///
/// 盘符信息
///
public class HardDiskPartition
{
#region Data
private string _PartitionName;
private double _FreeSpace;
private double _SumSpace;
#endregion //Data

#region Properties
///
/// 空余大小
///
public double FreeSpace
{
get { return _FreeSpace; }
set { this._FreeSpace = value; }
}
///
/// 使用空间
///
public double UseSpace
{
get { return _SumSpace - _FreeSpace; }
}
///
/// 总空间
///
public double SumSpace
{
get { return _SumSpace; }
set { this._SumSpace = value; }
}
///
/// 分区名称
///
public string PartitionName
{
get { return _PartitionName; }
set { this._PartitionName = value; }
}
///
/// 是否主分区
///
public bool IsPrimary
{
get
{
//判断是否为系统安装分区
if (System.Environment.GetEnvironmentVariable("windir").Remove(2) == this._PartitionName)
{
return true;
}
else
{
return false;
}
}
}
#endregion //Properties
}

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3.获取盘符空间信息：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Management;
using System.IO;
namespace ExPortToExcel
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btnStart_Click(object sender, EventArgs e)
{
try
{
List<HardDiskPartition> listInfo = GetDiskListInfo();
if (listInfo != null && listInfo.Count > 0)
{
listBox1.Items.Clear();
foreach(HardDiskPartition disk in listInfo)
{
listBox1.Items.Add(string.Format("{0}  总空间：{1} GB,剩余:{2} GB", disk.PartitionName, ManagerDoubleValue(disk.SumSpace,1), ManagerDoubleValue(disk.FreeSpace,1)));
}
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 处理Double值，精确到小数点后几位
/// </summary>
/// <param name="_value">值</param>
/// <param name="Length">精确到小数点后几位</param>
/// <returns>返回值</returns>
private double ManagerDoubleValue(double _value,int Length)
{
if (Length < 0)
{
Length = 0;
}
return System.Math.Round(_value, Length);
}
/// <summary>
/// 获取硬盘上所有的盘符空间信息列表
/// </summary>
/// <returns></returns>
private List<HardDiskPartition> GetDiskListInfo()
{
List<HardDiskPartition> list = null;
//指定分区的容量信息
try
{
SelectQuery selectQuery = new SelectQuery("select * from win32_logicaldisk");

ManagementObjectSearcher searcher = new ManagementObjectSearcher(selectQuery);

ManagementObjectCollection diskcollection = searcher.Get();
if (diskcollection != null && diskcollection.Count > 0)
{
list = new List<HardDiskPartition>();
HardDiskPartition harddisk = null;
foreach (ManagementObject disk in searcher.Get())
{
int nType = Convert.ToInt32(disk["DriveType"]);
if (nType != Convert.ToInt32(DriveType.Fixed))
{
continue;
}
else
{
harddisk = new HardDiskPartition();
harddisk.FreeSpace = Convert.ToDouble(disk["FreeSpace"]) / (1024 * 1024 * 1024);
harddisk.SumSpace = Convert.ToDouble(disk["Size"]) / (1024 * 1024 * 1024);
harddisk.PartitionName = disk["DeviceID"].ToString();
list.Add(harddisk);
}
}
}
}
catch (Exception)
{

}
return list;
}
}
}

源码金山快盘下载地址：http://www.kuaipan.cn/index.php?ac=file&oid=18034395877212172

原文连接：/article/5749563.html