鉴于以下每个输入，我想在该位置获得可用空间。类似的东西
long GetFreeSpace(string path)
输入：
c:
c:\
c:\temp
\\server
\\server\C\storage
【问题讨论】：
这对我有用...
using System.IO;
private long GetTotalFreeSpace(string driveName)
{
foreach (DriveInfo drive in DriveInfo.GetDrives())
{
if (drive.IsReady && drive.Name == driveName)
{
return drive.TotalFreeSpace;
}
}
return -1;
}
祝你好运！
【讨论】：
drive.TotalFreeSpace 不适合我，但drive.AvailableFreeSpace 可以
AvailableFreeSpace，正如@knocte 所说。 AvailableFreeSpace 列出了用户实际可用的数量（由于报价）。 TotalFreeSpace 列出磁盘上可用的内容，无论用户可以使用什么。
使用来自 RichardOD 链接的GetDiskFreeSpaceEx 的工作代码 sn-p。
// Pinvoke for API function
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
public static bool DriveFreeBytes(string folderName, out ulong freespace)
{
freespace = 0;
if (string.IsNullOrEmpty(folderName))
{
throw new ArgumentNullException("folderName");
}
if (!folderName.EndsWith("\\"))
{
folderName += '\\';
}
ulong free = 0, dummy1 = 0, dummy2 = 0;
if (GetDiskFreeSpaceEx(folderName, out free, out dummy1, out dummy2))
{
freespace = free;
return true;
}
else
{
return false;
}
}
【讨论】：
... if (!GetDiskFreeSpaceEx(folderName, out free, out total, out dummy)) throw new Win32Exception(Marshal.GetLastWin32Error());。反正在这里找代码挺方便的。
"\\"结尾。它可以是任何现有的目录路径，甚至只是C:。这是我的代码版本：stackoverflow.com/a/58005966/964478
DriveInfo 将帮助您解决其中的一些问题（但它不适用于 UNC 路径），但实际上我认为您需要使用 GetDiskFreeSpaceEx。您可能可以使用 WMI 实现一些功能。 GetDiskFreeSpaceEx 看起来是您的最佳选择。
您可能需要清理路径才能使其正常工作。
【讨论】：
using System;
using System.IO;
class Test
{
public static void Main()
{
DriveInfo[] allDrives = DriveInfo.GetDrives();
foreach (DriveInfo d in allDrives)
{
Console.WriteLine("Drive {0}", d.Name);
Console.WriteLine(" Drive type: {0}", d.DriveType);
if (d.IsReady == true)
{
Console.WriteLine(" Volume label: {0}", d.VolumeLabel);
Console.WriteLine(" File system: {0}", d.DriveFormat);
Console.WriteLine(
" Available space to current user:{0, 15} bytes",
d.AvailableFreeSpace);
Console.WriteLine(
" Total available space: {0, 15} bytes",
d.TotalFreeSpace);
Console.WriteLine(
" Total size of drive: {0, 15} bytes ",
d.TotalSize);
}
}
}
}
/*
This code produces output similar to the following:
Drive A:\
Drive type: Removable
Drive C:\
Drive type: Fixed
Volume label:
File system: FAT32
Available space to current user: 4770430976 bytes
Total available space: 4770430976 bytes
Total size of drive: 10731683840 bytes
Drive D:\
Drive type: Fixed
Volume label:
File system: NTFS
Available space to current user: 15114977280 bytes
Total available space: 15114977280 bytes
Total size of drive: 25958948864 bytes
Drive E:\
Drive type: CDRom
The actual output of this code will vary based on machine and the permissions
granted to the user executing it.
*/
【讨论】：
这是@sasha_gud 答案的重构和简化版本：
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
public static ulong GetDiskFreeSpace(string path)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path");
}
ulong dummy = 0;
if (!GetDiskFreeSpaceEx(path, out ulong freeSpace, out dummy, out dummy))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return freeSpace;
}
【讨论】：
检查一下（这对我来说是一个可行的解决方案）
public long AvailableFreeSpace()
{
long longAvailableFreeSpace = 0;
try{
DriveInfo[] arrayOfDrives = DriveInfo.GetDrives();
foreach (var d in arrayOfDrives)
{
Console.WriteLine("Drive {0}", d.Name);
Console.WriteLine(" Drive type: {0}", d.DriveType);
if (d.IsReady == true && d.Name == "/data")
{
Console.WriteLine("Volume label: {0}", d.VolumeLabel);
Console.WriteLine("File system: {0}", d.DriveFormat);
Console.WriteLine("AvailableFreeSpace for current user:{0, 15} bytes",d.AvailableFreeSpace);
Console.WriteLine("TotalFreeSpace {0, 15} bytes",d.TotalFreeSpace);
Console.WriteLine("Total size of drive: {0, 15} bytes \n",d.TotalSize);
}
longAvailableFreeSpaceInMB = d.TotalFreeSpace;
}
}
catch(Exception ex){
ServiceLocator.GetInsightsProvider()?.LogError(ex);
}
return longAvailableFreeSpace;
}
【讨论】：
未经测试：
using System;
using System.Management;
ManagementObject disk = new
ManagementObject("win32_logicaldisk.deviceid="c:"");
disk.Get();
Console.WriteLine("Logical Disk Size = " + disk["Size"] + " bytes");
Console.WriteLine("Logical Disk FreeSpace = " + disk["FreeSpace"] + "
bytes");
顺便说一句，c:\temp 上可用磁盘空间的结果是什么？您将获得没有 c:\
的空间【讨论】：
我正在寻找以 GB 为单位的大小，所以我只是通过以下更改改进了上面超人的代码：
public double GetTotalHDDSize(string driveName)
{
foreach (DriveInfo drive in DriveInfo.GetDrives())
{
if (drive.IsReady && drive.Name == driveName)
{
return drive.TotalSize / (1024 * 1024 * 1024);
}
}
return -1;
}
【讨论】：
long 但函数返回 double。
看到这个article！
通过搜索“:”的索引来识别 UNC par 或本地驱动器路径
如果它是 UNC 路径，您可以映射 UNC 路径
执行驱动器名称的代码是映射驱动器名称
using System.IO;
private long GetTotalFreeSpace(string driveName)
{
foreach (DriveInfo drive in DriveInfo.GetDrives())
{
if (drive.IsReady && drive.Name == driveName)
{
return drive.TotalFreeSpace;
}
}
return -1;
}
完成要求后取消映射。
【讨论】：
正如this answer 和@RichardOD 建议的那样，你应该这样做：
[DllImport("kernel32.dll", SetLastError=true, CharSet=CharSet.Auto)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
ulong FreeBytesAvailable;
ulong TotalNumberOfBytes;
ulong TotalNumberOfFreeBytes;
bool success = GetDiskFreeSpaceEx(@"\\mycomputer\myfolder",
out FreeBytesAvailable,
out TotalNumberOfBytes,
out TotalNumberOfFreeBytes);
if(!success)
throw new System.ComponentModel.Win32Exception();
Console.WriteLine("Free Bytes Available: {0,15:D}", FreeBytesAvailable);
Console.WriteLine("Total Number Of Bytes: {0,15:D}", TotalNumberOfBytes);
Console.WriteLine("Total Number Of FreeBytes: {0,15:D}", TotalNumberOfFreeBytes);
【讨论】：
我想为我的项目使用类似的方法，但在我的情况下，输入路径来自本地磁盘卷或集群存储卷 (CSV)。所以 DriveInfo 类对我不起作用。 CSV 在另一个驱动器下有一个挂载点，通常是 C:\ClusterStorage\Volume*。请注意，C: 将是与 C:\ClusterStorage\Volume1 不同的卷
这是我最终想到的：
public static ulong GetFreeSpaceOfPathInBytes(string path)
{
if ((new Uri(path)).IsUnc)
{
throw new NotImplementedException("Cannot find free space for UNC path " + path);
}
ulong freeSpace = 0;
int prevVolumeNameLength = 0;
foreach (ManagementObject volume in
new ManagementObjectSearcher("Select * from Win32_Volume").Get())
{
if (UInt32.Parse(volume["DriveType"].ToString()) > 1 && // Is Volume monuted on host
volume["Name"] != null && // Volume has a root directory
path.StartsWith(volume["Name"].ToString(), StringComparison.OrdinalIgnoreCase) // Required Path is under Volume's root directory
)
{
// If multiple volumes have their root directory matching the required path,
// one with most nested (longest) Volume Name is given preference.
// Case: CSV volumes monuted under other drive volumes.
int currVolumeNameLength = volume["Name"].ToString().Length;
if ((prevVolumeNameLength == 0 || currVolumeNameLength > prevVolumeNameLength) &&
volume["FreeSpace"] != null
)
{
freeSpace = ulong.Parse(volume["FreeSpace"].ToString());
prevVolumeNameLength = volume["Name"].ToString().Length;
}
}
}
if (prevVolumeNameLength > 0)
{
return freeSpace;
}
throw new Exception("Could not find Volume Information for path " + path);
}
【讨论】：
你可以试试这个：
var driveName = "C:\\";
var freeSpace = DriveInfo.GetDrives().Where(x => x.Name == driveName && x.IsReady).FirstOrDefault().TotalFreeSpace;
祝你好运
【讨论】：
我遇到了同样的问题，我看到 waruna manjula 给出了最好的答案。 然而，在控制台上写下来并不是你想要的。 要从 al 信息中获取字符串，请使用以下命令
第一步：在开始时声明值
//drive 1
public static string drivename = "";
public static string drivetype = "";
public static string drivevolumelabel = "";
public static string drivefilesystem = "";
public static string driveuseravailablespace = "";
public static string driveavailablespace = "";
public static string drivetotalspace = "";
//drive 2
public static string drivename2 = "";
public static string drivetype2 = "";
public static string drivevolumelabel2 = "";
public static string drivefilesystem2 = "";
public static string driveuseravailablespace2 = "";
public static string driveavailablespace2 = "";
public static string drivetotalspace2 = "";
//drive 3
public static string drivename3 = "";
public static string drivetype3 = "";
public static string drivevolumelabel3 = "";
public static string drivefilesystem3 = "";
public static string driveuseravailablespace3 = "";
public static string driveavailablespace3 = "";
public static string drivetotalspace3 = "";
第 2 步：实际代码
DriveInfo[] allDrives = DriveInfo.GetDrives();
int drive = 1;
foreach (DriveInfo d in allDrives)
{
if (drive == 1)
{
drivename = String.Format("Drive {0}", d.Name);
drivetype = String.Format("Drive type: {0}", d.DriveType);
if (d.IsReady == true)
{
drivevolumelabel = String.Format("Volume label: {0}", d.VolumeLabel);
drivefilesystem = String.Format("File system: {0}", d.DriveFormat);
driveuseravailablespace = String.Format("Available space to current user:{0, 15} bytes", d.AvailableFreeSpace);
driveavailablespace = String.Format("Total available space:{0, 15} bytes", d.TotalFreeSpace);
drivetotalspace = String.Format("Total size of drive:{0, 15} bytes ", d.TotalSize);
}
drive = 2;
}
else if (drive == 2)
{
drivename2 = String.Format("Drive {0}", d.Name);
drivetype2 = String.Format("Drive type: {0}", d.DriveType);
if (d.IsReady == true)
{
drivevolumelabel2 = String.Format("Volume label: {0}", d.VolumeLabel);
drivefilesystem2 = String.Format("File system: {0}", d.DriveFormat);
driveuseravailablespace2 = String.Format("Available space to current user:{0, 15} bytes", d.AvailableFreeSpace);
driveavailablespace2 = String.Format("Total available space:{0, 15} bytes", d.TotalFreeSpace);
drivetotalspace2 = String.Format("Total size of drive:{0, 15} bytes ", d.TotalSize);
}
drive = 3;
}
else if (drive == 3)
{
drivename3 = String.Format("Drive {0}", d.Name);
drivetype3 = String.Format("Drive type: {0}", d.DriveType);
if (d.IsReady == true)
{
drivevolumelabel3 = String.Format("Volume label: {0}", d.VolumeLabel);
drivefilesystem3 = String.Format("File system: {0}", d.DriveFormat);
driveuseravailablespace3 = String.Format("Available space to current user:{0, 15} bytes", d.AvailableFreeSpace);
driveavailablespace3 = String.Format("Total available space:{0, 15} bytes", d.TotalFreeSpace);
drivetotalspace3 = String.Format("Total size of drive:{0, 15} bytes ", d.TotalSize);
}
drive = 4;
}
if (drive == 4)
{
drive = 1;
}
}
//part 2: possible debug - displays in output
//drive 1
Console.WriteLine(drivename);
Console.WriteLine(drivetype);
Console.WriteLine(drivevolumelabel);
Console.WriteLine(drivefilesystem);
Console.WriteLine(driveuseravailablespace);
Console.WriteLine(driveavailablespace);
Console.WriteLine(drivetotalspace);
//drive 2
Console.WriteLine(drivename2);
Console.WriteLine(drivetype2);
Console.WriteLine(drivevolumelabel2);
Console.WriteLine(drivefilesystem2);
Console.WriteLine(driveuseravailablespace2);
Console.WriteLine(driveavailablespace2);
Console.WriteLine(drivetotalspace2);
//drive 3
Console.WriteLine(drivename3);
Console.WriteLine(drivetype3);
Console.WriteLine(drivevolumelabel3);
Console.WriteLine(drivefilesystem3);
Console.WriteLine(driveuseravailablespace3);
Console.WriteLine(driveavailablespace3);
Console.WriteLine(drivetotalspace3);
我想指出你可以让所有的控制台写行注释代码，但我认为你测试它会很好。 如果您将所有这些一个接一个地显示，您将获得与 waruna majuna 相同的列表
驱动器 C:\ 驱动类型：固定 体积标识： 文件系统：NTFS 当前用户可用空间：134880153600 字节 总可用空间：134880153600 字节 驱动器总大小：499554185216 字节
驱动器 D:\ 驱动器类型：光驱
驱动器 H:\ 驱动类型：固定 卷标：硬盘 文件系统：NTFS 当前用户的可用空间：2000010817536 字节 总可用空间：2000010817536 字节 驱动器总大小：2000263573504 字节
但是您现在可以访问字符串中的所有松散信息
【讨论】：