find value by tag name in xml

How can I find value by tag name in xml file? using C#.net 2.0

There are just 10 distinct nodes in my xmldocument.

I dont want to write xpath. I think there is an auto find prop开发者_Python百科erty.

I have solved my problem with this scneirao:

XmlNodeList nl = xdoc.GetElementsByTagName("CustomerID"); sb.Append(nl[0].InnerXml);

Simple example:

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(someRawData);
XmlNodeList yourNodes = xmlDoc.GetElementsByTagName("YourTagName");

Then you can iterate through yourNodes and takes the values.

Can't remember the exact syntax, but write an Xpath query and then use XPathNavigator.Select to find it.

Edit: Just remember, I think it's something like //@tagname, so if you do XPathNavigator.Select("//@tagname") I think it would work. Assuming that with tag you mean an attribute, if you're looking for elements it should just be //tagname.

see this complete function get node value as well as attribute value from xml file...

public string GetXmlNodeValue(string xmlfilePath, string TagName, string Attribute)
{
    XmlDocument objXML = new XmlDocument();
    bool IsNodeValuefound = false;
    string Value = string.Empty;
    try
    {
        if (File.Exists(xmlfilePath))
        {
            objXML.Load(xmlfilePath);

            XmlNode xNode = objXML.DocumentElement.FirstChild;
            while (xNode != null)
            {
                if (string.Compare(xNode.Name, TagName, true) == 0)
                {
                    if (!string.IsNullOrEmpty(Attribute))
                    {
                        if (xNode.Attributes.GetNamedItem(Attribute) != null)
                        {
                            IsNodeValuefound = true;
                            Value = xNode.Attributes.GetNamedItem(Attribute).Value;
                        }
                    }
                    else
                    {
                        IsNodeValuefound = true;
                        Value = xNode.InnerText.Trim();
                    }
                }
                xNode = xNode.NextSibling;
            }
        }
        if (IsNodeValuefound)
            return Value;
        else
            return string.Empty;
    }
    catch (XmlException xmlEx)
    {
        throw xmlEx;
    }
    catch (Exception ex)
    {
        throw ex;
    }
    finally
    {
        objXML = null;
    }
}     

Firt, get XmlDocument by this code:

XmlDocument infodoc = new XmlDocument();
infodoc.LoadXml(xmlString);

In case the your tag look like:

<directory value="D:/BACKUPS"></directory>

get value of 'directory' tag by following:

var directory = infodoc.GetElementsByTagName("directory")[0].Attributes["value"].Value;

In case the your tag look like:

<directory>D:/BACKUPS</directory>

get value of 'directory' tag by following:

var directory = infodoc.GetElementsByTagName("directory")[0].InnerXml;