C# 获取磁盘空间信息

1.获取本机磁盘用度

A.DriveInfo

public void GetDriver()
{
long lsum = 0, ldr = 0;
long gb = 1024 * 1024 * 1024;

foreach (DriveInfo drive in DriveInfo.GetDrives())
{
//判断是否是固定磁盘
if (drive.DriveType == DriveType.Fixed)
{
lsum = drive.TotalSize / gb;
ldr = drive.TotalFreeSpace / gb;
richTextBox1.Text += drive.Name + ": 总空间=" + lsum.ToString() + " 剩余空间=" + ldr.ToString()+"\n\r";
}
}
//progressBar1.Value = int.Parse((lsum - ldr).ToString());
//progressBar1.Maximum = int.Parse(lsum.ToString());
//lbMsg.Text = "磁盘" + disksrc + "的可用空间为" + ldr + "GB！";
}

B.ManagementObjectSearcher

需引入命名空间：using System.Management;（同时在项目中，通过添加引用方式添加）

public void GetDriveInfoDetail(string driveName)
{
WqlObjectQuery wqlObjectQuery = new WqlObjectQuery(string.Format("SELECT * FROM Win32_LogicalDisk WHERE DeviceID = '{0}'", driveName.Substring(0, 2)));

ManagementObjectSearcher managerSearch = new ManagementObjectSearcher(wqlObjectQuery);

List<ulong> driveInfoList = new List<ulong>(2);

foreach (ManagementObject mobj in managerSearch.Get())
{
richTextBox1.Text += "Description: " + mobj["Description"] + "\r\n";
richTextBox1.Text += "File system: " + mobj["FileSystem"] + "\r\n";
richTextBox1.Text += "Free disk space: " + mobj["FreeSpace"] + "\r\n";
richTextBox1.Text += "Size: " + mobj["Size"] + "\r\n";
}

}

调用示例：<pre name="code" class="csharp">GetDriveInfoDetail("D:");//注意盘符后要有:号

2.获取远程服务器磁盘用度

private void button2_Click(object sender, EventArgs e)
{
string ip = textBoxSrcPath.Text;//"172.16.5.214";

string disksrc = textBoxDirPath.Text + ":";//"D:";

string username = txtUsername.Text;//"Administrator"; //

string password = txtPassword.Text;//"password";

long freesize = 0, size = 0;

long gb = 1024 * 1024 * 1024;

ConnectionOptions connectionOptions = new ConnectionOptions();

connectionOptions.Username = username;

connectionOptions.Password = password;

connectionOptions.Timeout = new TimeSpan(1, 1, 1, 1);//连接时间

//ManagementScope 的服务器和命名空间。

string path = string.Format("\\\\{0}\\root\\cimv2", ip);

//表示管理操作的范围（命名空间）,使用指定选项初始化ManagementScope 类的、表示指定范围路径的新实例。

ManagementScope scope = new ManagementScope(path, connectionOptions);

scope.Connect();

//查询字符串，某磁盘上信息

string strQuery = string.Format("select * from Win32_LogicalDisk where deviceid='{0}'", disksrc);

ObjectQuery query = new ObjectQuery(strQuery);

//查询ManagementObjectCollection返回结果集
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);

foreach (ManagementObject m in searcher.Get())
{
if (m["Name"].ToString() == disksrc)
{   //通过m["属性名"]
freesize = Convert.ToInt64(m["FreeSpace"]) / gb;
size = Convert.ToInt64(m["Size"]) / gb;
}
}
txtdr.Text = freesize.ToString();
if (freesize <= 20)
{
lbMsg.ForeColor = Color.Red;
lbMsg.Text = "磁盘" + disksrc + "的可用空间为" + freesize + "GB,请及时清理！";
}

progressBar1.Maximum = int.Parse(size.ToString());
progressBar1.Value = int.Parse((size - freesize).ToString());

lbMsg.Text = "磁盘" + disksrc + "的可用空间为" + freesize + "GB！";
}