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• Download source code / example - 34 Kb

What does it do?

This is a class for interfacing with windows map network drive API's.

Introduction to the class...

• Getting started

  Add the class file "cNetworkDrives0015.cs" to your project / solution.
  Add the "using" definition to your form, etc.
  

  using aejw.Network;

• Example (Mapping a network drive)

   NetworkDrive oNetDrive = new aejw.Network.NetworkDrive();
   try{
      oNetDrive.LocalDrive = "m:";
      oNetDrive.ShareName = "\\ComputerName\Share"
      oNetDrive.MapDrive();
   }catch(Exception err){
      MessageBox.Show(this,"Error: "+err.Message);
   }
   oNetDrive = null;

• Example (Unmapping a network drive)

   NetworkDrive oNetDrive = new aejw.Network.NetworkDrive();
   try{
      oNetDrive.LocalDrive = "m:";
      oNetDrive.UnMapDrive();
   }catch(Exception err){
      MessageBox.Show(this,"Error: "+err.Message);
   }
   oNetDrive = null;

Username and Password functions...

     cNetworkDrive oNetDrive = new cNetworkDrive();

• Mapping a network drive

  • //Map drive with current user credentials
    
    oNetDrive.LocalDrive = "m:";
    oNetDrive.ShareName = "\\ComputerName\Share1"
    oNetDrive.MapDrive();

  • //Map drive with specified user credentials
    
    oNetDrive.LocalDrive = "m:";
    oNetDrive.ShareName = "\\ComputerName\Share1"
    oNetDrive.MapDrive("Bob_Username","Bob_Password");

  • //Map drive with and prompt user for credentials
    
    oNetDrive.LocalDrive = "m:";
    oNetDrive.ShareName = "\\ComputerName\Share1"
    oNetDrive.PromptForCredentials = true;
    oNetDrive.MapDrive();

  • //Map drive using a persistent connection
    
    oNetDrive.LocalDrive = "m:";
    oNetDrive.Persistent = true;
    oNetDrive.SaveCredentials = true;
    oNetDrive.ShareName = "\\ComputerName\Share1"
    oNetDrive.MapDrive("Bob_Username","Bob_Password");

• Unmapping a network drive

  • //Unmap a network connection
    
    oNetDrive.LocalDrive = "m:";
    oNetDrive.ShareName = "\\ComputerName\Share1"
    oNetDrive.UnMapDrive();

  • //Unmap a network connection ignoring network related errors
    
    oNetDrive.LocalDrive = "m:";
    oNetDrive.Force = true;
    oNetDrive.ShareName = "\\ComputerName\Share1"
    oNetDrive.UnMapDrive();

• Other functions

  • //Display windows connection dialog
    
    oNetDrive.ShowConnectDialog(this);
    //Display windows disconnection dialog
    
    oNetDrive.ShowDisconnectDialog(this);

  • //Restore all persistent connections
    
    oNetDrive.RestoreDrives();

History

• 14th May 2004 - build0015
  • LocalDrive and ShareName are now properties.
  • Dialog functions now use a form object instead of a window handle.
  • Renaming scheme for public functions and properties, MapNetworkDrive(...) is now MapDrive(...), etc...
  • Added Persistant option, Used for reconnecting a drive at logon.
  • Added SaveCredentials option, Allows windows to remember the user credentials when reconnecting a persistent connection.
  • Added Force option, for MapDrive calls, if a drive is connected it will disconnect that drive then reconnect to the new share.
  • Added PromptForCredintals option, for MapDrive calls, windows will ask for a username and password to use with the connection.
  • Added RestoreDrives function that restores persistent connections.
• 30th April 2004 - build0012
  • Code refinements and tidying, added comments to the class.
• 27th April 2004 - build0011
  • Adjusted declare tags, tidied class and article
• 26th April 2004 - build0010
  • First version posted online

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This is an old version yrodrigu 16:33 4 Nov '09   Note that he is up to build 28 (this is 15) on his site. It claims to correct some bugs. His site is down but the google cached copy is there. Sign In·View Thread·PermaLink LPT bug dmageiras 2:09 11 Jun '09   Hi! Great article! Theres a tiny bug in LPT1 mapping. If you try to map LPT1: your code converts it to the L drive letter... A quick and dirty fix is the following: public string LocalDrive { get { return (ls_Drive); } set { if (value.ToUpper() == "LPT1:" || value.ToUpper() == "LPT1") { ls_Drive = "LPT1:"; } else if (value.Length >= 1) { ls_Drive = value.Substring(0, 1) + ":"; } else { ls_Drive = ""; } } } I guess there's a better way but it works for me. Greetings, DM Sign In·View Thread·PermaLink Thank you Josh Andy 22:16 27 May '09   Looking for just like thing 5 Sign In·View Thread·PermaLink New patch makes it doesn't work any more on Windows 2003 songkai 0:50 13 May '09   http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.windowsupdate&tid=06a5a488-7646-4cfe-befa-d9e63a726f58&cat=&lang=&cr=&sloc=&p=1[^] I believe i can fly! Sign In·View Thread·PermaLink Server OS 2003 Member 4563279 12:00 11 May '09   Hi just recently moved these codes to my server 2003 and i'm getting these errors. Any ideas how i can fix this problem?? "This network connection does not exist" [Win32Exception (0x80004005): This network connection does not exist] aejw.Network.NetworkDrive.zUnMapDrive(Boolean pfForce) +373 aejw.Network.NetworkDrive.UnMapDrive() +50 EyeModInfo._Default.img1btn_Click(Object sender, ImageClickEventArgs e) +1315 System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +98 System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +161 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981 Sign In·View Thread·PermaLink Your website is down AEJW.com mm777 23:20 7 May '09   FYI: Tried to get the latest from your website but it's been down for at least a week or so. "failed to init xml file 'aejw/data/portal.config' - Root element is missing. " I'm sure you know about it. Is it on purpose? Sign In·View Thread·PermaLink Server O/S mbaocha 17:14 4 May '09   There appears to be problem having this to work in server Operating system(Windows Server 2003). I was wondering if somehow it was meant just to work on XP. _____________________________________________ Digital Map Nigeria | Street Level Map of Lagos Abuja Nigeria |GIS company in Nigeria Sign In·View Thread·PermaLink Attempt to access invalid address Member 3652203 20:21 14 Dec '08   The code works correctly on my WinXP development workstation. When I copy the compiled exe to a Windows 2003 Server machine, I get the following exception: System.ComponentModel.Win32Exception: Attempt to access invalid address Is there something that I need to register on my server machine? Sign In·View Thread·PermaLink Re: Attempt to access invalid address aejw 21:19 14 Dec '08   This error tends to occur when the drive letter set is already in use or set incorrectly. - aejw.com Sign In·View Thread·PermaLink Re: Attempt to access invalid address Member 3652203 7:01 15 Dec '08   Thanks. Sign In·View Thread·PermaLink Do it once or everytime? What is the latest version? King-----Kong 20:39 27 Nov '08   Do I have to map the drive on every page that needs access? Can I just map once for a server? If so, where/how do I do it? I have just downloaded and it says Build 015 Modified 14/05/2004. Is this the latest? Thanks. --kk Sign In·View Thread·PermaLink Re: Do it once or everytime? What is the latest version? aejw 20:59 14 Dec '08   If you set the persistant flag, you only need to map the drive once. If you dont, for every time you boot windows... Sorry need to update, the latest version is aejw.com - aejw.com Sign In·View Thread·PermaLink Vista : Access denied Pierre Liétar 1:08 12 Nov '08   Hi, I tried the code using XP, it works great! I tried it using Vista to map a server shared folder, it works great! I tried it using Vista to map a network HD with a public shared folder, it fails (Access denied). I so tried to check "ask credentials". I fullfil the credentials when asked. I works! I then tried to uncheck "ask credentials" and give credentials in the form. It failed... Does anyone have an idea of what's happening? I tried using the windows vista interface to make my network drive. There's no problem. I tried to make it using the "net use" function, the same problem as the code provided occured : "access denied" (Note : the same command works great on XP) The network HD is a linux based interface. Does it change anything? Any help would be really appreciate. ----- Pierre Liétar Sign In·View Thread·PermaLink Re: Vista : Access denied aejw 12:13 13 Nov '08   Well im quite lost for a solution without a linux share to test with. I assume you have tried passing the domain name, if not in a domain, try passing the machine name, or try not passing the domain and setting the username to "machinename\username"? - aejw.com Sign In·View Thread·PermaLink problem using in an aspx button raziel78 1:58 2 Oct '08   Hello I have caught the CNEtworkdrive class in an web application, i use the same code that you in a aspx button but do me nothing,Do you Know what is the problem.Thanks and best Regards Sign In·View Thread·PermaLink Works on Windows XP Home? Hugo Tomas 3:51 10 Jul '08   Is this work on Windows XP Home? Hugo Tomas Sign In·View Thread·PermaLink Re: Works on Windows XP Home? aejw 15:58 20 Jul '08   Yes it should... - aejw.com Sign In·View Thread·PermaLink How do you install program chris guajardo 11:50 18 Jun '08   How you install the program? Sign In·View Thread·PermaLink Re: How do you install program [modified] aejw 12:59 19 Jun '08   This is an code sample, not an application... You could however should you wish, get Microsoft Visual Studio.net, compile the application, use NSIS or Install Shield, etc to package the application into an installer and then install it. There are applications about which are installable applications for network drives. One application even uses my code todo this, its called NetPlace (Network Place Manager) http://sourceforge.net/projects/netplace/[^]. (aejw) modified on Friday, June 20, 2008 5:39 AM Sign In·View Thread·PermaLink Multiple connections Exception NickKa 11:32 21 May '08   How do I handle the below exception when I call MapDrive? Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again. Sign In·View Thread·PermaLink Re: Multiple connections Exception aejw 0:38 20 Jun '08   You have the following options.... 1. Disconnect your previous connection to the resource first 2. Have your code use the same username and password as your previous connection This error comes from Windows and as far as I know, there is no way around it. (aejw) Sign In·View Thread·PermaLink Re: Multiple connections Exception Josh Andy 0:15 1 Jun '09   To gain one more mapped drive, connect it to the IP of the server not the name and to gain another one too, give your DNS an alias and connect throught the alias not the server name Check this http://support.microsoft.com/kb/173199/[^] Hope this help Sign In·View Thread·PermaLink Map netdriver error. [modified] Paul Zhang 17:24 16 Mar '08   Thanks to aejw's work. I usesd it in my project, but unluckly my testers found it failed to map for one time and they could not reproduce it any more. It said the user has already mapped a network dirver for the same path. What a pitty! I think maybe it will be perfect if the function WNetGetConnection is added to detect whether that network path has been mapped as a driver or not. modified on Sunday, March 16, 2008 10:37 PM Sign In·View Thread·PermaLink Re: Map netdriver error. aejw 12:52 17 Mar '08   Sorry... I have been meaning to update this code (when i get the time) from my site (http://www.aejw.com/) where there is a later version posted. Should it not fix the issue with the later version, it sounds like a logic fault from the calling application... You should read back if the drive is in use or try using "try{ }catch{ }". (aejw) Sign In·View Thread·PermaLink 3.50/5 Re: http webdrive (webdav) possible ? Matterz 2:09 11 Nov '07   This would be really great ! I'm looking forward to it. Will this also be done on version on your site VB and C# ? If help is needs, just yell Sign In·View Thread·PermaLink

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