|
只好自己写了：
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.IO;
using System.Management;
using System.Data;
namespace Kimbanx.ExplorerControls
{
#region 定义事件参数
class DriveAddedEventArgs : EventArgs
{
private string _name;
private string _label;
public DriveAddedEventArgs(string name,string label)
{
this._name = name;
this._label = label;
}
public string Name
{
get { return _name; }
}
public string Label
{
get { return _label; }
}
}
class DriveChangedEventArgs : EventArgs
{
private string _name;
private string _label;
public DriveChangedEventArgs( string name, string label)
{
this._name = name;
this._label = label;
}
public string Name
{
get { return _name; }
}
public string Label
{
get { return _label; }
}
}
class DriveRemovedEventArgs:EventArgs
{
private string _name;
public DriveRemovedEventArgs(string name)
{
this._name = name;
}
public string Name
{
get { return _name; }
}
}
#endregion
#region 定义委托
public delegate void DriveAdded(object sender,DriveAddedEventArgs e);
public delegate void DriveChanged(object sender,DriveChangedEventArgs e);
public delegate void DriveRemoved(object sender,DriveRemovedEventArgs e);
#endregion
class LogicalDriveWatcher
{
private static long interval = 10000;
private static LogicalDriveWatcher _watcher=new LogicalDriveWatcher ();
private Timer _timer;
private DataTable _lastscan;
private DataTable _thisscan;
private List <string> _serialnumbers;
public event DriveAdded DriveAdded;
public event DriveChanged DriveChanged;
public event DriveRemoved DriveRemoved;
private LogicalDriveWatcher()
{
if (Environment.OSVersion.Platform == System.PlatformID.Win32Windows)
return;
_serialnumbers = new List <string>();
InitDataTable();
_timer = new Timer(new TimerCallback(StartWatch), null, 0, interval);
}
private void InitDataTable()
{
_lastscan = new DataTable();
_lastscan.Columns.Add("name");
_lastscan.Columns.Add("serialnumber");
_lastscan.Columns.Add("label");
_thisscan = new DataTable();
_thisscan.Columns.Add("name");
_thisscan.Columns.Add("serialnumber");
_thisscan.Columns.Add("label");
ManagementClass mcHD = new ManagementClass("win32_logicaldisk");
ManagementObjectCollection mocHD = mcHD.GetInstances();
foreach (ManagementObject m in mocHD)
{
DataRow dr = _lastscan.NewRow();
dr["name"] = m["DeviceId"].ToString();
dr["serialnumber"] = m["VolumeSerialNumber"].ToString();
dr["label"] = m["VolumeName"].ToString();
_lastscan.Rows.Add(dr);
if (!_serialnumbers.Contains(dr["serialnumber"].ToString()))
_serialnumbers.Add(dr["serialnumber"].ToString());
}
}
public static LogicalDriveWatcher GetLogicalDriveWatcher()
{
return _watcher;
}
private void StartWatch(object state)
{
ManagementClass mcHD = new ManagementClass("win32_logicaldisk");
ManagementObjectCollection mocHD = mcHD.GetInstances();
DataRow[] lastfoundrows;
DataRow[] thisfoundrows;
_thisscan.Rows.Clear();
foreach (ManagementObject m in mocHD)
{
DataRow dr = _thisscan.NewRow();
dr["name"] = m["DeviceId"].ToString();
dr["serialnumber"] = m["VolumeSerialNumber"].ToString();
dr["label"] = m["VolumeName"].ToString();
_thisscan.Rows.Add(dr);
if (!_serialnumbers.Contains(dr["serialnumber"].ToString()))
_serialnumbers.Add(dr["serialnumber"].ToString ());
}
List <string> needtoremoved = new List <string>();
foreach (string sn in _serialnumbers)
{
lastfoundrows = _lastscan.Select("serialnumber=\'" + sn + "'","name ASC");
thisfoundrows = _thisscan.Select("serialnumber=\'" + sn + "'","name ASC");
foreach (DataRow ld in lastfoundrows)
{
bool found = false;
foreach (DataRow td in thisfoundrows)
{
if (ld["name"].ToString () == td["name"].ToString ())
{
if (ld["label"].ToString () != td["label"].ToString ())
{
OnDriveChanged(new DriveChangedEventArgs(td["name"].ToString (), td["label"].ToString ()));
}
found = true;
break;
}
}
if (found == false)
{
OnDriveRemoved(new DriveRemovedEventArgs(ld["name"].ToString ()));
}
}
foreach (DataRow td in thisfoundrows)
{
bool found = false;
foreach (DataRow ld in lastfoundrows)
{
if (ld["name"].ToString () == td["name"].ToString ())
{
found = true;
break;
}
}
if (found == false)
{
OnDriveAdded(new DriveAddedEventArgs(td["name"].ToString(),td["label"].ToString()));
}
}
if (thisfoundrows.Length == 0)
{
needtoremoved.Add(sn);
}
}
foreach (string ds in needtoremoved)
{
_serialnumbers.Remove(ds);
}
_lastscan.Rows.Clear();
_lastscan = _thisscan.Copy();
}
private void OnDriveAdded(DriveAddedEventArgs e)
{
if (this.DriveAdded != null)
DriveAdded(this, e);
}
private void OnDriveRemoved(DriveRemovedEventArgs e)
{
if (this.DriveRemoved != null)
DriveRemoved(this, e);
}
private void OnDriveChanged(DriveChangedEventArgs e)
{
if (this.DriveChanged != null)
DriveChanged(this, e);
}
}
}
| 
