nbsp;    //1:RESOURCETYPE_ANY
 
myNetResource.dwDisplayType = 3; //3:RESOURCEDISPLAYTYPE_GENERIC
myNetResource.dwUsage = 1;       //1: RESOURCEUSAGE_CONNECTABLE
myNetResource.LocalName = localDriveName;
myNetResource.RemoteName = remoteNetworkPath;
myNetResource.Provider = null;
uint nret = WNetAddConnection2(myNetResource, password, userName, 0);
if (nret == 0)
return true;
else
return false;
}
// localDriveName format:     @"E:"
public static bool DeleteMap(string localDriveName)
{
uint nret = WNetCancelConnection2(localDriveName, 1, true);
if (nret == 0)
return true;
else
return false;
}
public void test()
{
// 注意：
// remote、local、username的格式一定要正确，否则可能出现错误
string remote = @"\192.168.1.48generals";
string local = @"P:";
string username = @"DomainUserName";
string password = @"Password";
bool ret = MyMap.CreateMap(username, password, remote, local);
if (ret)
{
//do what you want:
// ...
//File.Copy("q:\test.htm", "c:\test.htm");
MyMap.DeleteMap(local);
}
}
}
}
三、使用WebClient类
由于WebClient类可以上传下载文件，并且支持以http:、https:和file:开头的URI，所以可以用WebClient类来传输文件。
添加System.Net命名空间后使用如下代码下载文件：
private void Test1()
{
try
{
WebClient client = new WebClient();
NetworkCredential cred = new NetworkCredential("username", "password", "172.16.0.222");
client.Credentials = cred;
client.DownloadFile("file://172.16.0.222/test/111.txt", "111.txt");
}
catch (Exception ex)
{
// 如果网络很慢，而文件又很大，这时可能有超时异常（Time out）。
}
}
public void Test2()
{
try
{
WebClient client = new WebClient();
NetworkCredential cred = new NetworkCredential("username", "password", "domain");
client.Credentials = cred;
client.DownloadFile("file://172.16.0.222/test/111.txt", "111.txt");
}
catch (Exception ex)
{
// 如果网络很慢，而文件又很大，这时可能有超时异常（Time out）。
}
}
类似的还可以试试WebRequest、FileWebRequest等：
WebRequest req = WebRequest.Create("file://138.12.12.14/generals/test.htm");
NetworkCredential cred = new NetworkCredential("username", "password", "IP");
req.Credentials = cred;
WebResponse response = req.GetResponse();
Stream strm = response.GetResponseStream();
StreamReader r = new StreamReader(strm);
... ...
四、角色模拟
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Se