获取磁盘信息？

Question

 strDriveText = drv.VolumeLabel.Trim() == ""?"本地磁盘" : drv.VolumeLabel.Trim();这句老是显示，设备未就绪，IOException was unhandle.这是怎么回事啊

Answer 1

磁盘有专门的类的，和FIle一眼的，但名称忘了

Answer 2

光驱用switch case语句分开读的，

Answer 3

DriveType  :  CDRom(光驱)、Fixed(固定磁盘)
判断一下类型，如果是光驱，就不要读卷标了，没有盘放进去，卷标是没有的。

Answer 4

http://blog.csdn.net/fengyarongaa/archive/2011/06/16/6547840.aspxusing System;   
using System.Runtime.InteropServices;   
using System.Management;   
namespace Hardware   
{   
/// <summary>   
/// Hardware_Mac 的摘要说明。   
/// </summary>   
public class HardwareInfo   
{   
//取机器名   
public string GetHostName()   
{   
return System.Net.Dns.GetHostName();   
}   
//取CPU编号   
public String GetCpuID()   
{   
try   
{   
ManagementClass mc = new ManagementClass("Win32_Processor");   
ManagementObjectCollection moc = mc.GetInstances();   
String strCpuID = null ;   
foreach( ManagementObject mo in moc )   
{   
strCpuID = mo.Properties["ProcessorId"].Value.ToString();   
break;   
}   
return strCpuID;   
}   
catch   
{   
return "";   
}   
}//end method   
//取第一块硬盘编号   
public String GetHardDiskID()   
{   
try   
{   
ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");   
String strHardDiskID = null ;   
foreach(ManagementObject mo in searcher.Get())   
{   
strHardDiskID = mo["SerialNumber"].ToString().Trim();   
break;   
}   
return strHardDiskID ;   
}   
catch   
{   
return "";   
}   
}//end   
public enum NCBCONST   
{   
NCBNAMSZ =16, /* absolute length of a net name */   
MAX_LANA =254, /* lana's in range 0 to MAX_LANA inclusive */   
NCBENUM =0x37, /* NCB ENUMERATE LANA NUMBERS */   
NRC_GOODRET =0x00, /* good return */   
NCBRESET =0x32, /* NCB RESET */   
NCBASTAT =0x33, /* NCB ADAPTER STATUS */   
NUM_NAMEBUF =30, /* Number of NAME's BUFFER */   
}   
[StructLayout(LayoutKind.Sequential)]   
public struct ADAPTER_STATUS   
{   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=6)]   
public byte[] adapter_address;   
public byte rev_major;   
public byte reserved0;   
public byte adapter_type;   
public byte rev_minor;   
public ushort duration;   
public ushort frmr_recv;   
public ushort frmr_xmit;   
public ushort iframe_recv_err;   
public ushort xmit_aborts;   
public uint xmit_success;   
public uint recv_success;   
public ushort iframe_xmit_err;   
public ushort recv_buff_unavail;   
public ushort t1_timeouts;   
public ushort ti_timeouts;   
public uint reserved1;   
public ushort free_ncbs;   
public ushort max_cfg_ncbs;   
public ushort max_ncbs;   
public ushort xmit_buf_unavail;   
public ushort max_dgram_size;   
public ushort pending_sess;   
public ushort max_cfg_sess;   
public ushort max_sess;   
public ushort max_sess_pkt_size;   
public ushort name_count;   
}   
[StructLayout(LayoutKind.Sequential)]   
public struct NAME_BUFFER   
{   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)]   
public byte[] name;   
public byte name_num;   
public byte name_flags;   
}   
[StructLayout(LayoutKind.Sequential)]   
public struct NCB   
{   
public byte ncb_command;   
public byte ncb_retcode;   
public byte ncb_lsn;   
public byte ncb_num;   
public IntPtr ncb_buffer;   
public ushort ncb_length;   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)]   
public byte[] ncb_callname;   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)]   
public byte[] ncb_name;   
public byte ncb_rto;   
public byte ncb_sto;   
public IntPtr ncb_post;   
public byte ncb_lana_num;   
public byte ncb_cmd_cplt;   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=10)]   
public byte[] ncb_reserve;   
public IntPtr ncb_event;   
}   
[StructLayout(LayoutKind.Sequential)]   
public struct LANA_ENUM   
{   
public byte length;   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.MAX_LANA)]   
public byte[] lana;   
}   
[StructLayout(LayoutKind.Auto)]   
public struct ASTAT   
{   
public ADAPTER_STATUS adapt;   
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NUM_NAMEBUF)]   
public NAME_BUFFER[] NameBuff;   
}   
public class Win32API   
{   
[DllImport("NETAPI32.DLL")]   
public static extern char Netbios(ref NCB ncb);   
}   
public string GetMacAddress()   
{   
string addr="";   
try   
{   
int cb;   
ASTAT adapter;   
NCB Ncb=new NCB();   
char uRetCode;   
LANA_ENUM lenum;   
Ncb.ncb_command = (byte)NCBCONST.NCBENUM;   
cb = Marshal.SizeOf(typeof(LANA_ENUM));   
Ncb.ncb_buffer = Marshal.AllocHGlobal(cb);   
Ncb.ncb_length = (ushort)cb;   
uRetCode = Win32API.Netbios(ref Ncb);   
lenum = (LANA_ENUM)Marshal.PtrToStructure(Ncb.ncb_buffer, typeof(LANA_ENUM));   
Marshal.FreeHGlobal(Ncb.ncb_buffer);   
if(uRetCode != (short)NCBCONST.NRC_GOODRET)   
return "";   
for(int i=0; i < lenum.length ;i++)   
{   
Ncb.ncb_command = (byte)NCBCONST.NCBRESET;   
Ncb.ncb_lana_num = lenum.lana[i];   
uRetCode = Win32API.Netbios(ref Ncb);   
if(uRetCode != (short)NCBCONST.NRC_GOODRET)   
return "";   
Ncb.ncb_command = (byte)NCBCONST.NCBASTAT;   
Ncb.ncb_lana_num = lenum.lana[i];   
Ncb.ncb_callname[0]=(byte)'*';   
cb = Marshal.SizeOf(typeof(ADAPTER_STATUS)) + Marshal.SizeOf(typeof(NAME_BUFFER))*(int)NCBCONST.NUM_NAMEBUF;   
Ncb.ncb_buffer = Marshal.AllocHGlobal(cb);   
Ncb.ncb_length = (ushort)cb;   
uRetCode = Win32API.Netbios(ref Ncb);   
adapter.adapt = (ADAPTER_STATUS)Marshal.PtrToStructure(Ncb.ncb_buffer, typeof(ADAPTER_STATUS));   
Marshal.FreeHGlobal(Ncb.ncb_buffer);   
if (uRetCode == (short)NCBCONST.NRC_GOODRET)   
{   
if(i>0)   
addr += ":";   
addr = string.Format("{0,2:X}{1,2:X}{2,2:X}{3,2:X}{4,2:X}{5,2:X}",   
adapter.adapt.adapter_address[0],   
adapter.adapt.adapter_address[1],   
adapter.adapt.adapter_address[2],   
adapter.adapt.adapter_address[3],   
adapter.adapt.adapter_address[4],   
adapter.adapt.adapter_address[5]);   
}   
}   
}   
catch   
{}   
return addr.Replace(' ', '0');   
}   
}   
}   

Answer 5

太感谢你们了，呵呵，这几天没来得及看，真对不住，sorry啦

Answer 6

http://blog.csdn.net/fengyarongaa/article/details/6547840

Answer 7

这个其实是一个资源管理器，循环读的代码如下
 foreach (DriveInfo drv in DriveInfo.GetDrives())
            {
                TreeNode tnDrive = new TreeNode();
                tnDrive.Name = drv.Name;
                switch (drv.DriveType)
                {
                    case DriveType.CDRom:
                        tnDrive.ImageIndex = 2;
                        strDriveText = "CDRom";
                        break;
                    //case DriveType.Fixed:
                    //    break;
                    //case DriveType.Network:
                    //    break;
                    //case DriveType.NoRootDirectory:
                    //    break;
                    //case DriveType.Ram:
                    //    break;
                    //case DriveType.Removable:
                    //    break;
                    //case DriveType.Unknown:
                    //    break;
                    default:
                        tnDrive.ImageIndex = 1;
                        strDriveText = drv.VolumeLabel.Trim() == "" ? "本地磁盘" : drv.VolumeLabel.Trim();（这句显示IO设备未就绪，编译时出现drv成员下{A:/}）
                        break;
                }
                strDriveText += "(" + drv.Name.Substring(0, 2) + ")";
                tnDrive.Text = strDriveText;
                tnDrive = GetNextDirectory(drv.Name, tnDrive);
                tnTop.Nodes.Add(tnDrive);
            }
            treeView1.Nodes.Add(tnTop);