xml check element
have the following working.
but when the "node" has element that does not exist in the xml string, it fails.
How to add validation check if the element node is not existed? then it can just return string.empty?
but when the "node" has element that does not exist in the xml string, it fails.
How to add validation check if the element node is not existed? then it can just return string.empty?
public string GetXMLInformation(string node, string xmlString)
{
string returnValue = string.Empty;
#region all fields
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xmlString);
XmlNodeList tempNodeList = null;
foreach (XmlNode item in xmlDoc.SelectNodes("//Surety"))
{
tempNodeList = item.ChildNodes;
foreach (XmlNode tempNode in tempNodeList)
{
if (tempNode.Name == node)
{
returnValue = tempNode.InnerText;
}
}
}
#endregion
return returnValue;
}
It's not clear what you're trying to solve here, but what does "fails" mean?
If the node content does not exists as element, then the result is string.Empty. If the content of xmlString is invalid, then the procedure throws an exception.
But searching for the nodes content is much simple than using loops:
If the node content does not exists as element, then the result is string.Empty. If the content of xmlString is invalid, then the procedure throws an exception.
But searching for the nodes content is much simple than using loops:
public bool ReadNodeContents(string xmlString, string node, out nodeContent string)
{
bool result = false;
XmlDocument document = new XmlDocument();
document.LoadXml(xmlString);
nodeContent = string.Empty;
foreach (XmlNode item in document.SelectNodes("//Surety/" + node))
{
nodeContent += item.InnerText;
}
return result;
}ASKER
failed - mean the node element i am looking for does not exist
Yup, Minor typo, just wrote that down as an outline...
namespace ConsoleCS
{
using System;
using System.Xml;
public class Program
{
public static void Main(string[] args)
{
bool result;
string nodeContents;
result = ReadNodeContents("<Surety><element>value</element></Surety>", "element", out nodeContents);
Console.WriteLine($"Result: {result}; Node contents: '{nodeContents}'");
result = ReadNodeContents("<Surety><element>value</element></Surety>", "anotherElement", out nodeContents);
Console.WriteLine($"Result: {result}; Node contents: '{nodeContents}'");
Console.WriteLine("\nDone.");
Console.ReadLine();
}
public static bool ReadNodeContents(string xmlString, string node, out string nodeContents )
{
bool result = false;
XmlDocument document = new XmlDocument();
document.LoadXml(xmlString);
nodeContents = string.Empty;
foreach (XmlNode item in document.SelectNodes("//Surety/" + node))
{
nodeContents += item.InnerText;
result = true;
}
return result;
}
}
}ASKER
But my example asks for return string not bool
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