Question

在我正在处理的代码中，有一些序列化的属性。就我所见，所有这些都能正常工作，但其中一个。这是代码：

    // Fields that the properties use.
    private bool _useAlertColors = false;
    private List<Int32> _colorArgb = new List<Int32>(new Int32[]{Color.White.ToArgb(), Color.Yellow.ToArgb(), Color.Red.ToArgb()});

    // The one that does not work.
    public List<Color> AlertColors
    {
        get
        {
            List<Color> alertColors = new List<Color>();

            foreach (Int32 colorValue in _colorArgb)
            {
                alertColors.Add(Color.FromArgb(colorValue));
            }

            return alertColors;
        }

        set
        {
            // If there's any difference in colors
            // then add the new color
            for (int i = 0; i < _colorArgb.Count; i++)
            {
                if (_colorArgb[i] != value[i].ToArgb())
                {
                    _colorArgb[i] = value[i].ToArgb();
                    HasChanged = true;
                }

            }
        }
    }

    // One of those that work.
    public bool UseAlertColors
    {
        get
        {
            return _useAlertColors;
        }

        set
        {
            if (_useAlertColors != value)
            {
                _useAlertColors = value;
                HasChanged = true;
            }
        }
    }

    // Serializing method.
    public bool Serialize(string filePath)
    {
        if (string.IsNullOrEmpty(filePath))
        {
            Logger.Log("Can't save settings, empty or null file path.");

            return false;
        }

        FileStream fileStream = null;

        try
        {
            fileStream = new FileStream(filePath, FileMode.Create);
            FilePath = filePath;
            System.Xml.Serialization.XmlSerializerFactory xmlSerializerFactory =
                new XmlSerializerFactory();
            System.Xml.Serialization.XmlSerializer xmlSerializer =
                xmlSerializerFactory.CreateSerializer(typeof(Settings));

            xmlSerializer.Serialize(fileStream, this);

            Logger.Log("Settings have been saved successfully to the file " + filePath);
        }
        catch (ArgumentException argumentException)
        {
            Logger.Log("Error while saving the settings. " + argumentException.Message);

            return false;
        }
        catch (IOException iOException)
        {
            Logger.Log("Error while saving the settings. " + iOException.Message);

            return false;
        }
        finally
        {
            if (fileStream != null)
                fileStream.Close();
        }

        return true;
    }

序列化后，这就是我最终的结果：

  <UseAlertColors>true</UseAlertColors>
  <AlertColors>
    <Color />
    <Color />
    <Color />
  </AlertColors>

AlertColors属性有什么问题？为什么不序列化？

修改：我已相应地更改了AlertColors属性，但仍然无效：

    public List<int> AlertColors
    {
        get
        {
            return _colorArgb;
        }

        set
        {
            // If there's any difference in colors
            // then add the new color
            for (int i = 0; i < _colorArgb.Count; i++)
            {
                if (_colorArgb[i] != value[i])
                {
                    _colorArgb[i] = value[i];
                    HasChanged = true;
                }

            }
        }
    }

我在.xml文件中得到的是：

  <AlertColors>
    <int>-1</int>
    <int>-8355840</int>
    <int>-65536</int>
  </AlertColors>

初始化_colorArgb字段时设置的第一个值。我可以在程序执行期间看到字段更改，但是当覆盖属性被序列化时，它会使用基础字段的初始值进行序列化。

导致问题的原因是什么？

Answer 1

XMLSerializer在序列化时仅使用类的公共属性 - Color Class没有。

这是一个如何绕过它的好例子：http://www.codeproject.com/Articles/2309/NET-XML-Serialization-a-settings-class

XML Serializer不处理属性

1 个答案: