URGENT:::XML Question

Question

Hi Guys, I have an xmlfile www.abc.com " enable="Yes"> www.abc1.com " enable="Yes"> I want to write code using System.XML namespace to delete node name="abc". Please help.. I will highly appreciate your help... Thanks

Peter Petrov · Answer

1) Your XML input file is not quite ok Use this: www.abc.com " enable="Yes" /> www.abc1.com " enable="Yes" /> 2) Your C# code has some bugs. When calling SelectSingleNode for example you shouldn't start the XPath string with / (forward slash) ... Remove that slash. Just start with the name of the sub-node. You can compare your code with this code: using System; using System.Xml; using System.IO; namespace TestXML { class MainProg { [STAThread] static void Main( string [] args) { XmlDataDocument xmlDoc = new XmlDataDocument(); string dataFile = "test_input.xml"; string cboURLName = "abc"; xmlDoc.Load(dataFile); XmlNodeList list = xmlDoc.GetElementsByTagName("data"); foreach (XmlNode node in list) { Console.WriteLine("/data/website[name='" + cboURLName + "']"); node.RemoveChild(node.SelectSingleNode("website[@name='" + cboURLName + "']")); } xmlDoc.Save( new System.IO.FileStream( "test_output.xml", FileMode.Append, FileAccess.Write) ); } } } 3) Make sure you have the test_input.xml file in the folder where your EXE is before you run the EXE. Then check the output file test_output.xml which will be created by the program when you start it.

asdklj kljasd · Answer

I am getting an error.. "Object reference not set to an instance of an object." XmlDataDocument xmlDoc = new XmlDataDocument (); xmlDoc.Load(dataFile); foreach ( XmlNode node in xmlDoc.GetElementsByTagName( "website" )) { node.RemoveChild(node.SelectSingleNode( "/website[@name='" + this .cboURLName.Text + "']" )); Console .WriteLine( "/data/website[name='" + this .cboURLName.Text + "']" ); }