C # XML creation parsing, XML formatting,

C # XML creation parsing, XML formatting,

Import namespace:

VS needs to add reference system. XML to the project; add using System. XML and using System. IO to the Code;

 

XML example:

<? Xml version = "1.0" encoding = "UTF-8"?> <MSG> <HEADINFO> <TYPE> ValidFlight </TYPE> </HEADINFO> <ValidFlight> <Flight> <Runway> 3 </Runway> <Stand> 27 </Stand> <FlightID> 436179 </FlightID> </Flight> <Flight> <Runway> 3 </Runway> <FlightID> 436180 </FlightID> </Flight> </ValidFlight> </MSG>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XML parsing:

Method 1:

XmlNode rootNode = XDoc. SelectSingleNode ("/MSG/ValidFlight ");

Foreach (XmlNode Xnode in rootNode. ChildNodes)
{
Int FlightId = Convert. ToInt32 (Xnode. SelectSingleNode ("FlightID"). InnerText );

String RunWay = Xnode. SelectSingleNode ("Runway") = null? Null: Xnode. SelectSingleNode ("Runway"). InnerText;

String Stand = Xnode. SelectSingleNode ("Stand") = null? Null: Xnode. SelectSingleNode ("Stand"). InnerText;
}

Method 2:

XmlNode nodelist = XDoc. SelectSingleNode ("MSG/ValidFlight ");

Foreach (XmlNode Xnode in nodelist)
{
Int FlightId = Convert. ToInt32 (Xnode ["FlightID"]. InnerText );

String RunWay = Xnode ["Runway"] = null? Null: Xnode. Xnode ["Runway"]. InnerText;

String Stand = Xnode ["Stand"] = null? Null: Xnode ["Stand"]. InnerText;
}

XML Creation

XmlDocument xmlDoc = new XmlDocument ();

// Create the root node

XmlDoc. LoadXml ("<? Xml version = '1. 0' encoding = 'utf-8'?> <MSG> </MSG> ");

XmlElement root = xmlDoc. DocumentElement;

// Create a level-1 Node

XmlElement flight = xmlDoc. CreateElement ("flight ");

// Create the second-level node

XmlElement flightPlan = xmlDoc. CreateElement ("flightPlan ");

XmlElement fpid = xmlDoc. CreateElement ("fpid ");

Fpid. InnerText = 32;

FlightPlan. AppendChild (fpid );

// Create the second node

XmlElement fpflag = xmlDoc. CreateElement ("fpflag ");
Fpflag. InnerText = 1;

Fpflag. SetAttribute ("name", "fpflag ");

FlightPlan. AppendChild (fpflag );

Flight. AppendChild (flightPlan );

Root. AppendChild (flight );

XML format

Private static string formatXml (XmlDocument xml)
{
XmlDocument xd = xml as XmlDocument;
StringBuilder sb = new StringBuilder ();
StringWriter sw = new StringWriter (sb );
XmlTextWriter xtw = null;
Try
{
Xtw = new XmlTextWriter (sw );
Xtw. Formatting = Formatting. Indented;
Xtw. Indentation = 1;
Xtw. IndentChar = '\ T ';
Xd. WriteTo (xtw );
}
Finally
{
If (xtw = null)
Xtw. Close ();
}
Return sb. ToString ();
}