将二维数组【序号，文本，颜色】保存到XML文件中，怎么写？
例如 public ButtonStyle[] PlcStyles
{
get { return m_styles; }
set { m_styles = value; }
}
public class ButtonStyle
{
int m_value = 0;
String m_text = "@";
Color m_clrBK = Color.Transparent;

[XmlElement]
public int Value
{
get { return m_value; }
set { m_value = value; }
}

[XmlElement]
public Color BackColor
{
get { return m_clrBK; }
set { m_clrBK = value; }
}

[XmlElement]
public String Text
{
get { return m_text; }
set { m_text = value; }
}

public ButtonStyle()
{

}

public override string ToString()
{
return m_text + "," + m_value + "," + m_clrBK;
}

internal void FromString(string val)
{
throw new NotImplementedException();
}
｝
将数组中是内容保存到XML文件中，