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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Xml;
  4.  
  5. public class Test
  6. {
  7. 	public static void Main()
  8. 	{
  9. 		var document = new XmlDocument();
  10.             document.LoadXml(@"<Root>
  11.       <Main Name=""Install"">
  12.         <Details>Success</Details>
  13.         <Maintain>Install period</Maintain>
  14.       </Main>
  15.     <Main Name=""Uninstall"">
  16.         <Details>failure</Details>
  17.         <Maintain>uninstall period</Maintain>
  18.       </Main>
  19.      <Main Name= ""Discard"" >
  20.         <Details>failure</Details>
  21.         <Maintain>discard period</Maintain>
  22.       </Main>
  23.      <Main Name= ""Install"" >
  24.         <Details>Done</Details>
  25.         <Maintain>Got Output</Maintain>
  26.       </Main>
  27.     </Root>");
  28.  
  29. 	    Dictionary<string, bool> used = new Dictionary<string, bool>();
  30.  
  31. 	    var allNodes = document.SelectNodes("Root/Main");
  32.  
  33. 	    for (int i = allNodes.Count - 1; i >= 0; i--)
  34. 	    {
  35. 	        var name = ((XmlElement)allNodes[i]).GetAttribute("Name");
  36.  
  37. 	        if (used.ContainsKey(name))
  38. 	        {
  39. 	            allNodes[i].ParentNode.RemoveChild(allNodes[i]);
  40. 	        }
  41. 	        else
  42. 	        {
  43. 	            used.Add(name, true);
  44. 	        }
  45. 	    }
  46.  
  47. 	    Console.WriteLine(document.OuterXml);
  48. 	}
  49. }
Success #stdin #stdout 0.15s 24624KB
comments (?)
stdin 
Standard input is empty
stdout 
<Root><Main Name="Uninstall"><Details>failure</Details><Maintain>uninstall period</Maintain></Main><Main Name="Discard"><Details>failure</Details><Maintain>discard period</Maintain></Main><Main Name="Install"><Details>Done</Details><Maintain>Got Output</Maintain></Main></Root>
https://ideone.com/B11Sh3
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
secret

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