C# XML tag finder

[weicheong]

Hi guys, I'm new to the forum ^^
I'm suppose to create a simple program which will actually decrypt and encrypt XML file using RijndaelManaged 256 bits...so nw i need to know how to find the start and end of a XML tag such tat i can actually find the part of ciphertext and replace with the normal text...Thanks in adv^^

[tlhintoq]

Homework assignments

I'm suppose to [...]

Hint 1: Try hitting Google with terms of your programming language and primary terms of what you want to do. For example "C# custom events" or "VB datagrid Excel". I've found this to be a very effective tool.
Hint 2: Your text book
Hint 3: Your instructor
Hint 4: Posting guidelines regarding homework assignments.

[PRR]

You will have to specify the element name for encryption... Take a look at Encrypt XML Elements with Symmetric Keys and
Decrypt XML Elements with Symmetric Keys
You can encrypt webconfig for ASP.NET web app too...

[sammartin]

use something like this,

try
{
doc.LoadXml(you rXmlStringStrin g);
XmlNode node = doc.SelectSingl eNode("root_doc ument_node/myfirstnode);
if (node != null)
{ // node.InnerText contain the contents of the node
}
}
catch {}

xml example:
<root_document_ node><myfirstno de>stuff here</myfirstnode></root_document_n ode>

HTH
Sam

[sammartin]

Note: missing double quote from end of first parameter of SelectSingleNod e