//引入命名空间//using System.Runtime.InteropServices;public class NetworkShareConnect    {        #region WNetUseConnection枚举参数        //dwScope        const int RESOURCE_CONNECTED = 0x00000001;        const int RESOURCE_GLOBALNET = 0x00000002;        const int RESOURCE_REMEMBERED = 0x00000003;        //dwType        const int RESOURCETYPE_ANY = 0x00000000;        const int RESOURCETYPE_DISK = 0x00000001;        const int RESOURCETYPE_PRINT = 0x00000002;        //dwDisplayType        const int RESOURCEDISPLAYTYPE_GENERIC = 0x00000000;        const int RESOURCEDISPLAYTYPE_DOMAIN = 0x00000001;        const int RESOURCEDISPLAYTYPE_SERVER = 0x00000002;        const int RESOURCEDISPLAYTYPE_SHARE = 0x00000003;        const int RESOURCEDISPLAYTYPE_FILE = 0x00000004;        const int RESOURCEDISPLAYTYPE_GROUP = 0x00000005;        //dwUsage        const int RESOURCEUSAGE_CONNECTABLE = 0x00000001;        const int RESOURCEUSAGE_CONTAINER = 0x00000002;        //dwFlags        const int CONNECT_INTERACTIVE = 0x00000008;        const int CONNECT_PROMPT = 0x00000010;        const int CONNECT_REDIRECT = 0x00000080;        const int CONNECT_UPDATE_PROFILE = 0x00000001;        const int CONNECT_COMMANDLINE = 0x00000800;        const int CONNECT_CMD_SAVECRED = 0x00001000;        const int CONNECT_LOCALDRIVE = 0x00000100;        #endregion        #region Errors参数        const int NO_ERROR = 0;        const int ERROR_ACCESS_DENIED = 5;        const int ERROR_ALREADY_ASSIGNED = 85;        const int ERROR_BAD_DEVICE = 1200;        const int ERROR_BAD_NET_NAME = 67;        const int ERROR_BAD_PROVIDER = 1204;        const int ERROR_CANCELLED = 1223;        const int ERROR_EXTENDED_ERROR = 1208;        const int ERROR_INVALID_ADDRESS = 487;        const int ERROR_INVALID_PARAMETER = 87;        const int ERROR_INVALID_PASSWORD = 1216;        const int ERROR_MORE_DATA = 234;        const int ERROR_NO_MORE_ITEMS = 259;        const int ERROR_NO_NET_OR_BAD_PATH = 1203;        const int ERROR_NO_NETWORK = 1222;        const int ERROR_BAD_PROFILE = 1206;        const int ERROR_CANNOT_OPEN_PROFILE = 1205;        const int ERROR_DEVICE_IN_USE = 2404;        const int ERROR_NOT_CONNECTED = 2250;        const int ERROR_OPEN_FILES = 2401;        private struct ErrorClass        {            //定义错误类结构体            public int num;            public string message;            public ErrorClass(int num, string message)            {                this.num = num;                this.message = message;            }        }        //连接失败信息汇总        private static ErrorClass[] ERROR_LIST = new ErrorClass[] {            new ErrorClass(ERROR_ACCESS_DENIED, "Error: Access Denied"),             new ErrorClass(ERROR_ALREADY_ASSIGNED, "Error: Already Assigned"),             new ErrorClass(ERROR_BAD_DEVICE, "Error: Bad Device"),             new ErrorClass(ERROR_BAD_NET_NAME, "Error: Bad Net Name"),             new ErrorClass(ERROR_BAD_PROVIDER, "Error: Bad Provider"),             new ErrorClass(ERROR_CANCELLED, "Error: Cancelled"),             new ErrorClass(ERROR_EXTENDED_ERROR, "Error: Extended Error"),             new ErrorClass(ERROR_INVALID_ADDRESS, "Error: Invalid Address"),             new ErrorClass(ERROR_INVALID_PARAMETER, "Error: Invalid Parameter"),             new ErrorClass(ERROR_INVALID_PASSWORD, "Error: Invalid Password"),             new ErrorClass(ERROR_MORE_DATA, "Error: More Data"),             new ErrorClass(ERROR_NO_MORE_ITEMS, "Error: No More Items"),             new ErrorClass(ERROR_NO_NET_OR_BAD_PATH, "Error: No Net Or Bad Path"),             new ErrorClass(ERROR_NO_NETWORK, "Error: No Network"),             new ErrorClass(ERROR_BAD_PROFILE, "Error: Bad Profile"),             new ErrorClass(ERROR_CANNOT_OPEN_PROFILE, "Error: Cannot Open Profile"),             new ErrorClass(ERROR_DEVICE_IN_USE, "Error: Device In Use"),             new ErrorClass(ERROR_EXTENDED_ERROR, "Error: Extended Error"),             new ErrorClass(ERROR_NOT_CONNECTED, "Error: Not Connected"),             new ErrorClass(ERROR_OPEN_FILES, "Error: Open Files"),         };        private static string getErrorForNumber(int errNum)        {            //遍历获得错误代码            foreach (ErrorClass er in ERROR_LIST)            {                if (er.num == errNum) return er.message;            }            return "Error: Unknown, " + errNum;        }        #endregion        //调用系统函数WNetUseConnection        //用于连接共享        [DllImport("Mpr.dll")]        private static extern int WNetUseConnection(            IntPtr hwndOwner,            NETRESOURCE lpNetResource,            string lpPassword,            string lpUserID,            int dwFlags,            string lpAccessName,            string lpBufferSize,            string lpResult            );        //用于删除连接        [DllImport("Mpr.dll")]        private static extern int WNetCancelConnection2(            string lpName,            int dwFlags,            bool fForce            );        [StructLayout(LayoutKind.Sequential)]        private class NETRESOURCE        {            public int dwScope = 0;            public int dwType = 0;            public int dwDisplayType = 0;            public int dwUsage = 0;            public string lpLocalName = "";//映射到本地的盘符，如"Z:"。不做驱动器映射，可为空            public string lpRemoteName = "";//共享的网络路径            public string lpComment = "";            public string lpProvider = "";        }        /// 
        /// 连接共享        /// 
        /// 共享网络路径        /// 登录用户名        /// 密码        /// 
             public static string connectToShare(string remoteUNC, string username, string password)        {            return connectToRemote(remoteUNC, username, password, false);        }        /// 
        /// 没用户密码连接        /// 
        /// 共享网络路径        /// 
             public static string connectToShare(string remoteUNC)        {            return connectToRemote(remoteUNC, "", "", true);        }        private static string connectToRemote(string remoteUNC, string username, string password, bool promptUser)        {            NETRESOURCE nr = new NETRESOURCE            {                dwType = RESOURCETYPE_DISK,                lpRemoteName = remoteUNC            };            int ret;            if (promptUser)                ret = WNetUseConnection(IntPtr.Zero, nr, "", "", CONNECT_INTERACTIVE | CONNECT_PROMPT, null, null, null);            else                ret = WNetUseConnection(IntPtr.Zero, nr, password, username, 0, null, null, null);            if (ret == NO_ERROR) return null;            return getErrorForNumber(ret);        }        public static string disconnectRemote(string remoteUNC)        {            int ret = WNetCancelConnection2(remoteUNC, CONNECT_UPDATE_PROFILE, false);            if (ret == NO_ERROR) return null;            return getErrorForNumber(ret);        }    }