将对象转换为 XML 字符串

Here are conversion method for both ways. this = instance of your class

public string ToXML()
{
using(var stringwriter = new System.IO.StringWriter())
{
var serializer = new XmlSerializer(this.GetType());
serializer.Serialize(stringwriter, this);
return stringwriter.ToString();
}
}


public static YourClass LoadFromXMLString(string xmlText)
{
using(var stringReader = new System.IO.StringReader(xmlText))
{
var serializer = new XmlSerializer(typeof(YourClass ));
return serializer.Deserialize(stringReader) as YourClass ;
}
}

I realize this is a very old post, but after looking at L.B's response I thought about how I could improve upon the accepted answer and make it generic for my own application. Here's what I came up with:

public static string Serialize<T>(T dataToSerialize)
{
try
{
var stringwriter = new System.IO.StringWriter();
var serializer = new XmlSerializer(typeof(T));
serializer.Serialize(stringwriter, dataToSerialize);
return stringwriter.ToString();
}
catch
{
throw;
}
}


public static T Deserialize<T>(string xmlText)
{
try
{
var stringReader = new System.IO.StringReader(xmlText);
var serializer = new XmlSerializer(typeof(T));
return (T)serializer.Deserialize(stringReader);
}
catch
{
throw;
}
}

These methods can now be placed in a static helper class, which means no code duplication to every class that needs to be serialized.

    public static string Serialize(object dataToSerialize)
{
if(dataToSerialize==null) return null;


using (StringWriter stringwriter = new System.IO.StringWriter())
{
var serializer = new XmlSerializer(dataToSerialize.GetType());
serializer.Serialize(stringwriter, dataToSerialize);
return stringwriter.ToString();
}
}


public static T Deserialize<T>(string xmlText)
{
if(String.IsNullOrWhiteSpace(xmlText)) return default(T);


using (StringReader stringReader = new System.IO.StringReader(xmlText))
{
var serializer = new XmlSerializer(typeof(T));
return (T)serializer.Deserialize(stringReader);
}
}

This is my solution, for any list object you can use this code for convert to xml layout. KeyFather is your principal tag and KeySon is where start your Forech.

public string BuildXml<T>(ICollection<T> anyObject, string keyFather, string keySon)
{
var settings = new XmlWriterSettings
{
Indent = true
};
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(typeof(T));
StringBuilder builder = new StringBuilder();
using (XmlWriter writer = XmlWriter.Create(builder, settings))
{
writer.WriteStartDocument();
writer.WriteStartElement(keyFather);
foreach (var objeto in anyObject)
{
writer.WriteStartElement(keySon);
foreach (PropertyDescriptor item in props)
{
writer.WriteStartElement(item.DisplayName);
writer.WriteString(props[item.DisplayName].GetValue(objeto).ToString());
writer.WriteEndElement();
}
writer.WriteEndElement();
}
writer.WriteFullEndElement();
writer.WriteEndDocument();
writer.Flush();
return builder.ToString();
}
}

 public static class XMLHelper
{
/// <summary>
/// Usage: var xmlString = XMLHelper.Serialize<MyObject>(value);
/// </summary>
/// <typeparam name="T">Kiểu dữ liệu</typeparam>
/// <param name="value">giá trị</param>
/// <param name="omitXmlDeclaration">bỏ qua declare</param>
/// <param name="removeEncodingDeclaration">xóa encode declare</param>
/// <returns>xml string</returns>
public static string Serialize<T>(T value, bool omitXmlDeclaration = false, bool omitEncodingDeclaration = true)
{
if (value == null)
{
return string.Empty;
}
try
{
var xmlWriterSettings = new XmlWriterSettings
{
Indent = true,
OmitXmlDeclaration = omitXmlDeclaration, //true: remove <?xml version="1.0" encoding="utf-8"?>
Encoding = Encoding.UTF8,
NewLineChars = "", // remove \r\n
};


var xmlserializer = new XmlSerializer(typeof(T));


using (var memoryStream = new MemoryStream())
{
using (var xmlWriter = XmlWriter.Create(memoryStream, xmlWriterSettings))
{
xmlserializer.Serialize(xmlWriter, value);
//return stringWriter.ToString();
}


memoryStream.Position = 0;
using (var sr = new StreamReader(memoryStream))
{
var pureResult = sr.ReadToEnd();
var resultAfterOmitEncoding = ReplaceFirst(pureResult, " encoding=\"utf-8\"", "");
if (omitEncodingDeclaration)
return resultAfterOmitEncoding;
return pureResult;
}
}
}
catch (Exception ex)
{
throw new Exception("XMLSerialize error: ", ex);
}
}


private static string ReplaceFirst(string text, string search, string replace)
{
int pos = text.IndexOf(search);


if (pos < 0)
{
return text;
}


return text.Substring(0, pos) + replace + text.Substring(pos + search.Length);
}
}