Font中的Properties都是readonly,并且Font不能被继承,所以序列化和反序列化Font会相对麻烦一点。
需要写一个FontSerializer类来实现Font序列化和反序列化。先写测试代码:
[TestMethod()] public void FontSerializationTest() { const string _anyFileName = @"D:/FontSerializerTest.xml"; XmlTextWriter writer = new XmlTextWriter(_anyFileName, null); writer.Formatting = Formatting.Indented; string name = "Font"; Font font = new Font("Arial", 9, FontStyle.Bold | FontStyle.Italic | FontStyle.Strikeout | FontStyle.Underline);; FontSerializer.WriteXml(writer, name, font); writer.Close(); font.Dispose(); XmlTextReader reader = new XmlTextReader(_anyFileName); font = FontSerializer.ReadXml(reader, name); reader.Close(); Assert.AreEqual(font.Name, _anyFont.Name); Assert.AreEqual(font.Size, _anyFont.Size); Assert.AreEqual(font.Style, _anyFont.Style); font.Dispose(); }
再写实现代码。
using System.Drawing; using System.Globalization; using System.Xml; namespace CommonLib { public static class FontSerializer { #region Methods public static Font ReadXml(XmlReader reader, string name) { reader.ReadToFollowing(name); reader.ReadStartElement(); string familyName = reader.ReadElementString("Name"); float size = float.Parse(reader.ReadElementString("Size"), CultureInfo.InvariantCulture); bool bold = bool.Parse(reader.ReadElementString("Bold")); bool italic = bool.Parse(reader.ReadElementString("Italic")); bool strikeout = bool.Parse(reader.ReadElementString("Strikeout")); bool underline = bool.Parse(reader.ReadElementString("Underline")); reader.ReadEndElement(); FontStyle fontStyle = FontStyle.Regular; if (bold) fontStyle |= FontStyle.Bold; if (italic) fontStyle |= FontStyle.Italic; if (strikeout) fontStyle |= FontStyle.Strikeout; if (underline) fontStyle |= FontStyle.Underline; Font font = new Font(familyName, size, fontStyle); return font; } public static void WriteXml(XmlWriter writer, string name, Font font) { writer.WriteStartElement(name); writer.WriteElementString("Name", font.Name); writer.WriteElementString("Size", font.Size.ToString(CultureInfo.InvariantCulture)); writer.WriteElementString("Bold", font.Bold.ToString()); writer.WriteElementString("Italic", font.Italic.ToString()); writer.WriteElementString("Strikeout", font.Strikeout.ToString()); writer.WriteElementString("Underline ", font.Underline.ToString()); writer.WriteEndElement(); } #endregion } }
见人用过Stream和BinaryFormatter序列化和反序列化Font,但不能在XML文件中任意节点序列化Font。以上实现可以解决这个问题。