C # XML Summary 1

C # operation XML Summary 1 many articles on the Internet that use C # To operate XML, but all of them work together to complicate the simple problem and leave it blank for reference. If you copy the hard cover, it will not only fail to reach the goal, but will waste time. I have previously done XML operations, but I forgot to do so. So I checked it online this afternoon. It really makes me sad. The solution on the internet is complicated and not very useful, and it makes me very shameless. I decided to sort it out for your reference tonight.
XmlDocument and XmlNode are mainly used. XML is enough for these two classes. We recommend that you do not use the XmlElement class because the XmlElement class requires you to define the XML document structure, this is completely unnecessary for general simple applications, and cannot be used without definition.
Take a simple example:
XML document content
<? Xml version = "1.0" encoding = "UTF-8"?>
<SDEConfig>
<SDEServer> APPL_GW_SERVER </SDEServer>
<SDEUser> RelicImg </SDEUser>
<SDEPassWord> gw2008 </SDEPassWord>
<SDEDatabase> GW </SDEDatabase>
</SDEConfig>

C # Read the source code of XML

Using System. Xml;

# Region link SDE information Definition variable
// Server
Private string m_SDEServer = "";
// User
Private string m_SDEUser = "";
// Password
Private string m_SDEPassWord = "";
// Database
Private string m_SDEDatabase = "";

# Endregion

/// <Summary>
/// Initialize SDE configuration information
/// </Summary>
Private void InitSDEConfiguration ()
{
String outPut = string. Empty;
Try
{
String xmlpath = Application. StartupPath + "\ sdeconfig. xml ";
If (! System. IO. File. Exists (xmlpath ))
{
MessageBox. Show ("the SDE configuration file is missing! "," Reading SDE configuration information ", MessageBoxButtons. OK, MessageBoxIcon. Warning );
Return;
}
XmlDocument doc = new XmlDocument ();
Doc. Load (xmlpath );

XmlNode node = doc. SelectSingleNode ("SDEConfig/SDEServer ");
This. m_SDEServer = node. InnerText;
// User
This. m_SDEUser = doc. SelectSingleNode ("SDEConfig/SDEUser"). InnerText;
// Password
This. m_SDEPassWord = doc. SelectSingleNode ("SDEConfig/SDEPassWord"). InnerText;
// Database
This. m_SDEDatabase = doc. SelectSingleNode ("SDEConfig/SDEDatabase"). InnerText;
}
Catch (Exception ex)
{
MessageBox. Show ("failed to read SDE configuration information! "," Reading SDE configuration information ", MessageBoxButtons. OK, MessageBoxIcon. Warning );
}
}

If you want to readProperty Information, <SDEServer Name = "wm"> APPL_GW_SERVER </SDEServer>
Yes
XmlNode xmlnode = doc. SelectSingleNode ("SDEConfig/SDEServer ");
// Read the attribute value
String strAttributeName = xmlnode. Attributes ["Name"]. Value. ToString ();