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 + '] ); }