473,548 Members | 2,604 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

FileStream and XmlTextReader Question

It is my understanding that I can create an XmlTextReader from a variety of
sources, including a stream object. I am developing a web application that
reads some data from an Xml file. Everything works fine if I use the
XmlTextReader to open the file (i.e. pass it the file name):

Dim reader As XmlTextReader = New XmlTextReader(" <file_name>")

But I get an access error if I try to open the file using a FileStream
object and then passing the FileStream object to the XmlTextReader
constructor:

Dim fs As FileStream = New FileStream("<fi le_name>", FileMode.Open)
Dim reader As XmlTextReader = New XmlTextReader(f s)

PS: assume that the file_name used has been properly mapped using
Server.MapPath

Can anyone explain why this happens?
Jul 26 '07 #1
2 4058
Mischa wrote:
But I get an access error if I try to open the file using a FileStream
object and then passing the FileStream object to the XmlTextReader
constructor:

Dim fs As FileStream = New FileStream("<fi le_name>", FileMode.Open)
Dim reader As XmlTextReader = New XmlTextReader(f s)
What is the exact error you get? It is probably just an issue with
FileAccess and FileShare modes that you did not specify explicitly.
--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/
Jul 27 '07 #2
What is the exact error you get? It is probably just an issue with
FileAccess and FileShare modes that you did not specify explicitly.
Thanks, I will check that
Jul 28 '07 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
1194
by: Gustaf Liljegren | last post by:
I shall make a make a function that will read an XML file, looking for elements like this <context id="A1"> <period> <instant>2001-01-01</instant> </period> </context> or this
4
11355
by: Andy Neilson | last post by:
I've run across a strange behaviour with XmlSerializer that I'm unable to explain. I came across this while trying to use XmlSerializer to deserialize from a the details of a SoapException. This should have worked fine since the class in question was already being serialized and deserialized as part of a Web service interface. What I found was...
5
9195
by: Geoff Bennett | last post by:
While parsing an XML document, my TextReader instance skips nodes. For example, in this fragment: <Person Sex="Male" FirstHomeBuyer="No" YearsInCurrentProfession="14"> <RelatedEntityRef RelatedID="118"/> <PersonName> <NameTitle Value="Mr"/> <FirstName>Clint</FirstName> <OtherName/> <AlsoKnownAs>Mr C Eastwood</AlsoKnownAs>
7
4883
by: SQLScott | last post by:
I have a Web Service in which I am trying to pass an XMLDocument as a parameter to one of the methods. I would like to use the XMLTextReader to read the XML but I am getting the following error: Value of type System.xml.xmldocument cannot be converted to System.IO.textreader. I would think this is possible to do. Code snippet is below:
3
3750
by: Newton | last post by:
Hi, I receive XML document from input and I would like to read it several times... My declaration is XmlTextReader XMLInputReader = new XmlTextReader(fileImport.PostedFile.InputStream); I am reading it like this
1
2244
by: SHC | last post by:
Hi all, I did the "Build" on the attached code in my VC++ .NET 2003 - Windows XP Pro PC. On the c:\ screen, I got the following: Microsoft Development Environment An unhandled exception of type 'System.Xml.XmlException' occured in system.xml.dll Addtional Information: System error |Break| |Continue| I clicked on the |Continue| and I got...
1
275
by: Raed Sawalha | last post by:
I have the following XML i do the following to extract the name information XmlTextReader Reader = new XmlTextReader("C:\\names.xml"); while(tempReader.Read() ) { if(tempReader.Name.ToLower() == "name ") { //My problem here how to get firstname and last for the current name node by other words get the childs information from parent
9
5839
by: Tom | last post by:
I am working with the this object as oppose to the StreamReader object becuase I need to access a file (to find the contents) while an external application is updating the file. When I was working with the StreamReader object I got a deadlock when I tried reading the file while my external application was writing to it. So far I am able...
1
1275
by: Nick | last post by:
Hi All, if i have the following code: StringReader stringReader = new StringReader(c_XML); XmlTextReader xmlReader = new XmlTextReader(stringReader); If I call 'xmlReader.Close();' I take it the under lying stringReader close method is called, is this correct? Thanks, Nick
0
7438
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language...
1
7466
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
0
7803
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the...
0
6036
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
1
5362
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...
0
5082
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert...
0
3495
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...
0
3475
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
1926
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.