remove item from xml

[IgorM]

Hi

I'm using the code below to allow user to browse through some xml document.

System.IO.StreamReader sr = new System.IO.StreamReader(currentPath);

System.Xml.XmlTextReader xr = new System.Xml.XmlTextReader(sr);

System.Xml.XmlDocument addresses = new System.Xml.XmlDocument();

addresses.Load(xr);

addressesItems = addresses.SelectNodes("addresses/customer");

tbEntrySought.Text =
addressesItems.Item(NodeNo).SelectSingleNode("uniq ueaddressline").InnerText;

tbMatchingEntry.Text =
addressesItems.Item(NodeNo).SelectSingleNode("addr ess_line1").InnerText +
"\r\n";

User has the ability to click a Delete button to delete a current item form
xml. How can I do that using Item number?

Kind regards

IgorM

[IgorM]

Hi

I tried this

//XmlNode deleteNode = addresses.SelectSingleNode("addresses/customer");
//addressesItems = addresses.SelectNodes("addresses/customer");

//Create FileStream fs

FileStream fs = new FileStream(currentPath, FileMode.Open, FileAccess.Read,
FileShare.ReadWrite);
//Create new XmlDocument

System.Xml.XmlDocument xmldoc = new System.Xml.XmlDocument();
//Load the contents of the filestream into the XmlDocument (xmldoc)

xmldoc.Load(fs);
//close the fs filestream

fs.Close();
//Remove the xml node

xmldoc.DocumentElement.RemoveChild(xmldoc.Document Element.ChildNodes[nodeNo]);
// Create the filestream for saving

FileStream WRITER = new FileStream(currentPath, FileMode.Truncate,
FileAccess.Write, FileShare.ReadWrite);
// Save the xmldocument

xmldoc.Save(WRITER);
//Close the writer filestream

WRITER.Close();

But I get exception on line FileStream WRITER = new FileStream(currentPath,
FileMode.Truncate, FileAccess.Write, FileShare.ReadWrite);
U¿ytkownik "IgorM" <ig***@live.comnapisa³ w wiadomo¶ci
news:uP*************@TK2MSFTNGP02.phx.gbl...

Hi

I'm using the code below to allow user to browse through some xml
document.

System.IO.StreamReader sr = new System.IO.StreamReader(currentPath);

System.Xml.XmlTextReader xr = new System.Xml.XmlTextReader(sr);

System.Xml.XmlDocument addresses = new System.Xml.XmlDocument();

addresses.Load(xr);

addressesItems = addresses.SelectNodes("addresses/customer");

tbEntrySought.Text =
addressesItems.Item(NodeNo).SelectSingleNode("uniq ueaddressline").InnerText;

tbMatchingEntry.Text =
addressesItems.Item(NodeNo).SelectSingleNode("addr ess_line1").InnerText +
"\r\n";

User has the ability to click a Delete button to delete a current item
form xml. How can I do that using Item number?

Kind regards

IgorM

[Martin Honnen]

IgorM wrote:

I tried this

//XmlNode deleteNode = addresses.SelectSingleNode("addresses/customer");
//addressesItems = addresses.SelectNodes("addresses/customer");

//Create FileStream fs

FileStream fs = new FileStream(currentPath, FileMode.Open, FileAccess.Read,
FileShare.ReadWrite);
//Create new XmlDocument

System.Xml.XmlDocument xmldoc = new System.Xml.XmlDocument();
//Load the contents of the filestream into the XmlDocument (xmldoc)

xmldoc.Load(fs);
//close the fs filestream

fs.Close();
//Remove the xml node

xmldoc.DocumentElement.RemoveChild(xmldoc.Document Element.ChildNodes[nodeNo]);
// Create the filestream for saving

FileStream WRITER = new FileStream(currentPath, FileMode.Truncate,
FileAccess.Write, FileShare.ReadWrite);
// Save the xmldocument

xmldoc.Save(WRITER);
//Close the writer filestream

WRITER.Close();

But I get exception on line FileStream WRITER = new FileStream(currentPath,
FileMode.Truncate, FileAccess.Write, FileShare.ReadWrite);

Which exception exactly do you get?

On the other hand I am not sure why you deal with those file streams
explicitly, XmlDocument.Load and Save can deal with a file name/path so
doing
XmlDocument doc = new XmlDocument();
doc.Load(currentPath);

doc.DocumentElement.RemoveChild(xmldoc.DocumentEle ment.ChildNodes[nodeNo]);
doc.Save(currentPath);
should suffice.

--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

[IgorM]

The error I get is:

IOException was caught
The process cannot access the file 'D:\addressbook.xml' because it is being
used by another process.
"Martin Honnen" <ma*******@yahoo.dewrote in message
news:eg**************@TK2MSFTNGP06.phx.gbl...

IgorM wrote:

>I tried this

//XmlNode deleteNode = addresses.SelectSingleNode("addresses/customer");
//addressesItems = addresses.SelectNodes("addresses/customer");

//Create FileStream fs

FileStream fs = new FileStream(currentPath, FileMode.Open,
FileAccess.Read, FileShare.ReadWrite);
//Create new XmlDocument

System.Xml.XmlDocument xmldoc = new System.Xml.XmlDocument();
//Load the contents of the filestream into the XmlDocument (xmldoc)

xmldoc.Load(fs);
//close the fs filestream

fs.Close();
//Remove the xml node

xmldoc.DocumentElement.RemoveChild(xmldoc.Documen tElement.ChildNodes[nodeNo]);
// Create the filestream for saving

FileStream WRITER = new FileStream(currentPath, FileMode.Truncate,
FileAccess.Write, FileShare.ReadWrite);
// Save the xmldocument

xmldoc.Save(WRITER);
//Close the writer filestream

WRITER.Close();

But I get exception on line FileStream WRITER = new
FileStream(currentPath, FileMode.Truncate, FileAccess.Write,
FileShare.ReadWrite);

Which exception exactly do you get?

On the other hand I am not sure why you deal with those file streams
explicitly, XmlDocument.Load and Save can deal with a file name/path so
doing
XmlDocument doc = new XmlDocument();
doc.Load(currentPath);

doc.DocumentElement.RemoveChild(xmldoc.DocumentEle ment.ChildNodes[nodeNo]);
doc.Save(currentPath);
should suffice.

--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/