ASP.Net writing to files on a different server

[Helen]

How can I write a file to a mapped drive on a different
server, from an ASP.Net application?

Thanks

Helen

[Tian Min Huang]

Hi Helen,

Thanks for your post. As I understand, your server with IIS has a drive
mapped to a different server. Now you want to write to a file in the mapped
drive in your ASP .NET application on the server. Please correct me if
there is any misunderstanding. I now share the following information with
you:

1. As you know, the codebehind of .aspx page are server side code that will
be executed on your IIS server. As in this case, you can use File class in
..NET class library to access the file in the mapped drive. Please refer to
MSDN documentation on File class:

File Class
http://msdn.microsoft.com/library/de...us/cpref/html/
frlrfSystemIOFileClassTopic.asp

2. In addition, please make sure that your ASPNET account have enough
permissions to access the mapped folder and file. If not, you can either
set the folder's security properties manually or impersonate another user
account which has enough prevelidges in your ASP .NET Web application.

INFO: Implementing Impersonation in an ASP.NET Application
http://support.microsoft.com/?id=306158

Hope this helps.

Regards,

HuangTM
Microsoft Online Partner Support
MCSE/MCSD

Get Secure! -- www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.

[Helen]

Hi Huang,
Thanks for that. I've tried changing the user id and
password in the machine.config, to an account that
definitely has access to read and write to the mapped
drive, as I can use it no problem from windows explorer,
but I'm still having problems.

My code works fine when I write the file to a local
directory, but when I change to the mapped directory the
error I'm getting is:

[DirectoryNotFoundException: Could not find a part of the
path "Y:\Sreqimport\Websitesreq.xml".]
System.IO.__Error.WinIOError(Int32 errorCode, String
str) +287
System.IO.FileStream..ctor(String path, FileMode mode,
FileAccess access, FileShare share, Int32 bufferSize,
Boolean useAsync, String msgPath, Boolean bFromProxy) +859
System.IO.FileStream..ctor(String path, FileMode mode,
FileAccess access, FileShare share) +45
System.Xml.XmlTextWriter..ctor(String filename,
Encoding encoding)
System.Xml.XmlDOMTextWriter..ctor(String filename,
Encoding encoding)
System.Xml.XmlDocument.Save(String filename)
FlareCityCouncil.XMLAdapter.FlareEntity.Save() in
c:\inetpub\wwwroot\flare\flarecitycouncil\xmladapt er\flaree
ntity.cs:91

FlareCityCouncil.ServiceRequests.SRAdd.Submit1_Ser verClick
(Object sender, EventArgs e) in
c:\inetpub\wwwroot\flare\flarecitycouncil\servicer equests\s
radd.aspx.cs:93
System.Web.UI.HtmlControls.HtmlInputButton.OnServe rClick
(EventArgs e)

System.Web.UI.HtmlControls.HtmlInputButton.System. Web.UI.IP
ostBackEventHandler.RaisePostBackEvent(String
eventArgument)
System.Web.UI.Page.RaisePostBackEvent
(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent
(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain()
Any other thoughts?

Thanks ..
Helen

-----Original Message-----
Hi Helen,

Thanks for your post. As I understand, your server with IIS has a drivemapped to a different server. Now you want to write to a file in the mappeddrive in your ASP .NET application on the server. Please correct me ifthere is any misunderstanding. I now share the following information withyou:

1. As you know, the codebehind of .aspx page are server side code that willbe executed on your IIS server. As in this case, you can use File class in.NET class library to access the file in the mapped drive. Please refer toMSDN documentation on File class:

File Class
http://msdn.microsoft.com/library/default.asp? url=/library/en-us/cpref/html/frlrfSystemIOFileClassTopic.asp

2. In addition, please make sure that your ASPNET account have enoughpermissions to access the mapped folder and file. If not, you can eitherset the folder's security properties manually or impersonate another useraccount which has enough prevelidges in your ASP .NET Web application.
INFO: Implementing Impersonation in an ASP.NET Application
http://support.microsoft.com/?id=306158

Hope this helps.

Regards,

HuangTM
Microsoft Online Partner Support
MCSE/MCSD

Get Secure! -- www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.
.

[Tian Min Huang]

Hello Helen,

Thanks for your response.

Based on my experience, you should also give the file share FullTrust
permission as described in the MSDN article below and check whether or the
problem still exists.

http://msdn.microsoft.com/library/de...us/vsintro7/ht
ml/vxurfprojectfoldernotsecuredialogbox.asp

I look forward to your result.

Have a nice day!

Regards,

HuangTM
Microsoft Online Partner Support
MCSE/MCSD

Get Secure! -- www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.