Converting Xpath from java to c#

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hey guys pls I need your help.
1. I am not really sure what this piece of code does
2. how do I rewrite this is c#, since XpathApi does not exist in the c# library.

Java

Node objRecorNode;
Node objCurrentField = null;


public boolean setToFirstRecord() {
  try {
       objCurrentField = XPathAPI.selectSingleNode(objRecordNode,"./FIELD");
       if(objCurrentField==null)
       return false;
    else
       return true;
      } catch(Exception e) {
      System.out.println("Error in setToFirstRecord of RecordObject "  + e.getMessage());
       return false;
    }

}

thanks for the help, very greatful

Posted 19-Sep-13 9:59am

rudolph098

Updated 19-Sep-13 10:05am

Richard C Bishop

v2

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phil.o · Answer 1 · 2013-09-19T10:25:00

XPath expressions are supported in .NET through the use of XmlDocument class.

You could start here:
XPath Syntax[^]
XmlDocument Class[^]

Hope this helps.

[EDIT] Added example with XmlNode

As I say in my comment, the SelectSingleNode method also exists for XmlNode class.

A (rough) translation of the java code could be:

C#

XmlNode objRecordNode;
XmlNode objCurrentField;

public bool SetToFirstRecord()
{
   try {
      objCurrentField = objRecordNode.SelectSingleNode("./FIELD");
      return (objCurrentField != null);
   }
   catch (Exception ex) {
      Debug.WriteLine(string.Format("Error in setToFirstRecord of RecordObject {0}", e.Message()));
      return false;
   }
}

(rough because I do not use XML documents so often ; but I hope you got the idea)

[/EDIT]