如何在C＃中打开带有身份验证的文件夹？

**This code works, it is passed the parameters by constructor, but it can be adapted to call it a method**

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using System;
    using System.Runtime.InteropServices;
    using System.Threading;
    namespace pepe(ejemplo)
    {`enter code here`
        public class NetworkAuthentication
        {

            public string Dom { get; set; }
            public string User { get; set; }
            public string Pwd { get; set; }

            public NetworkAuthentication(string dom, string user, string pwd) {
                this.Dom = dom;
                this.User = user;
                this.Pwd = pwd;
            }

            const int RESOURCETYPE_DISK = 0x00000001;
            const int RESOURCEDISPLAYTYPE_FILE = 0x00000004;

            const int CONNECT_INTERACTIVE = 0x00000008;
            const int CONNECT_PROMPT = 0x00000010;
            const int CONNECT_UPDATE_PROFILE = 0x00000001;


            #region Constantes recursos - comentados
            /*
            const int RESOURCE_CONNECTED = 0x00000001;
            const int RESOURCE_GLOBALNET = 0x00000002;
            const int RESOURCE_REMEMBERED = 0x00000003;
            const int RESOURCETYPE_ANY = 0x00000000;
            const int RESOURCETYPE_PRINT = 0x00000002;
            const int RESOURCEDISPLAYTYPE_GENERIC = 0x00000000;
            const int RESOURCEDISPLAYTYPE_DOMAIN = 0x00000001;
            const int RESOURCEDISPLAYTYPE_SERVER = 0x00000002;
            const int RESOURCEDISPLAYTYPE_SHARE = 0x00000003;
            const int RESOURCEDISPLAYTYPE_GROUP = 0x00000005;
            const int RESOURCEUSAGE_CONNECTABLE = 0x00000001;
            const int RESOURCEUSAGE_CONTAINER = 0x00000002;
            const int CONNECT_REDIRECT = 0x00000080;
            const int CONNECT_COMMANDLINE = 0x00000800;
            const int CONNECT_CMD_SAVECRED = 0x00001000;
            const int CONNECT_LOCALDRIVE = 0x00000100;
             */
            #endregion

            #region Errors - Comentada

            /*
            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
            {
                public int num;
                public string message;
                public ErrorClass(int num, string message)
                {
                    this.num = num;
                    this.message = message;
                }
            }

            // Created with excel formula:
  // ="new ErrorClass("&A1&", """&PROPER(SUBSTITUTE(MID(A1,7,LEN(A1)-6), _","))&"""), "
            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)
            {
                foreach (ErrorClass er in ERROR_LIST)
                {
                    if (er.num == errNum) return er.message;
                }
                return "Error: Unknown, " + errNum;
            }
             */
            #endregion



            [DllImport("Mpr.dll")]
            private static extern int WNetUseConnection(
                IntPtr hwndOwner,
                NETRESOURCE lpNetResource,
                string lpPassword,
                string lpUserID,
                int dwFlags,
                string lpAccessName,
                string lpBufferSize,
                string lpResult
                );
            [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 = "";
                public string lpRemoteName = "";
                public string lpComment = "";
                public string lpProvider = "";
            }

            public string connectToRemote()
            {
                NETRESOURCE nr = new NETRESOURCE();
                nr.dwType = RESOURCETYPE_DISK;
                nr.lpRemoteName = this.Dom;
                //          nr.lpLocalName = "F:";
                int ret = WNetUseConnection(IntPtr.Zero, nr, this.Pwd, this.User, 0, null, null, null);           
                //Chequear en la region de errores si el retorno es distinto de cero a que corresponde
                if (ret == 0) return null;
                return "Error";
            }
            public string disconnectRemote()
            {
                int ret = WNetCancelConnection2(this.Dom, CONNECT_UPDATE_PROFILE, false);
                //Chequear en la region de errores si el retorno es distinto de cero a que corresponde
                if (ret == 0) return null;
                return "Error";

            }
        }
    }