Hi guys,

I am learning Windows Forms in C#.NET 2008 and i want to build a class to work with SIMPLE xml files (config file like INI files), but i just need a simple class (open, getvalue, setvalue, creategroup, save and close functions), to substitute of ini files.

I already did something and it is working but I am having trouble when I need to create different groups, something like this:

<?xml version="1.0" encoding="utf-8"?>
<CONFIG>
  <General>
    <Field1>192.168.0.2</Field1>
  </General>
  <Data>
    <Field1>Joseph</Field1>
    <Field2>Locked</Field2>
  </Data>
</CONFIG>

how can i specify that i want to read the field1 of [data] group? note that i have same field name in both groups (Field1)!

I am using System.Linq, something like this:

To open document:

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(FilePath);

To save document:

xmlDoc.Save(FilePath);

To get value:

public string getValue(string Field)
{
    string result = "";
    try
    {
        XmlNodeList xmlComum = xmlDoc.GetElementsByTagName(Field);
        if (xmlComum.Item(0) == null)
            result = "";
        else
            result = xmlComum.Item(0).InnerText;
    }
    catch (Exception ex)
    {
        return "";
    }
    return result;
}

To set value:

public void setValue(string Group, string Field, string FieldValue)
{
    try
    {
        XmlNodeList xmlComum = xmlDoc.GetElementsByTagName(Field);
        if (xmlComum.Item(0) == null)
        {
            xmlComum = xmlDoc.GetElementsByTagName(Group);
            if (xmlComum.Item(0) == null)
            {
                // create group
                createGroup(Group);
                xmlComum = xmlDoc.GetElementsByTagName(Group);
            }
            XmlElement xmlE = xmlDoc.CreateElement(Field);
            XmlText xmlT = xmlDoc.CreateTextNode(FieldValue);
            xmlE.AppendChild(xmlT);
            xmlComum.Item(0).AppendChild(xmlE);
        }
        else
        {
            // item already exists, just change its value
            xmlComum.Item(0).InnerText = Value;
        }
        xmlDoc.Save(FilePath);
    }
    catch (Exception ex)
    {
    }
}

The CreateGroup code:

public void createGroup(string Group)
{
    try
    {
        XmlElement xmlComum = xmlDoc.CreateElement(Group);
        xmlDoc.DocumentElement.AppendChild(xmlComum);
        xmlDoc.Save(FilePath);
    }
    catch (Exception ex)
    {
    }
}

Thank You!