Question

我有一个WPF应用程序，它挂钩到我也在编写的DLL中。 DLL扫描第三方应用程序的数据文件夹并处理其中的所有数据解释。 WPF将提供一个很好的GUI;我将它们分开了，因为将来可能还需要为它编写命令行界面。

扫描数据文件夹需要一些时间，因此我想保存对象的状态（存储库），并在数据文件夹被扫描并保持相同的“上次修改”状态时打开它。我已将Repository对象标记为[Serializable]但是当我尝试保存状态（来自WPF或DLL）时，我得到一个异常，即WPF MainWindow不是[Serializable]。

如果我读取了创建的.dat文件，那么它确实有一些（不确定的话）全部信息。

我不明白为什么会尝试保存有关WPF窗口的任何信息。我试图将窗口标记为[Serializable]只是为了尝试但该类不允许它。在网上搜索让我看着AppDomains，因为我正在加载DLL和应用程序，但这有点过头了。以下是我目前正在尝试实施它的方式。编辑：对序列化的调用位于WPF代码的底部。

我应该提一下，我在WPF命名空间中创建了一个内联类，并且能够成功地将其序列化为文件。

感谢任何帮助。

这是DLL：

namespace HPOO_XML_Parser
{
[Serializable]
public class HPOORepository
{

    string _version;
    string _path;
    string _library;
    string _uuid;


    [NonSerialized]
    BackgroundWorker bWorker = new BackgroundWorker();
    [NonSerialized]
    XElement _xmlRepo;      


    int _nodeCount;
    List<Node> nodes;
    ...
    Rest of properties and methods
}

WPF称之为

namespace HPOO_Repository_Scanner
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    HPOORepository repo;

    public MainWindow()
    {
        InitializeComponent();
        StatusVisibility(); // Simply hides progress bar/cancel button
    }

    private void OpenRepository(object sender, RoutedEventArgs e)
    {

        string ooHome;
        using (FolderBrowserDialog browser = new FolderBrowserDialog())
        {
            ooHome = Environment.GetEnvironmentVariable("ICONCLUDE_HOME");
            if (ooHome != null)
            {
                browser.SelectedPath = ooHome;
            }
            browser.ShowNewFolderButton = false;
            browser.Description = "Select a repository to open...";

            if (browser.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                try
                {
                    repo = new HPOORepository(browser.SelectedPath);
                }
                catch (Exception ex)
                {
                    System.Windows.MessageBox.Show(ex.Message, "Invalid Repository Selected", MessageBoxButton.OK, MessageBoxImage.Error);

                }
            }
            repo.ProgressChanged += new ProgressChangedEventHandler(repo_ProgressChanged);

            prgStatus.Maximum = 100;

            repo.ReadRepository();

        }

    }
private void mnuSave_Click(object sender, RoutedEventArgs e)
    {
        SaveRepo(repo);
    }

    public void SaveRepo(object repository)
    {
        BinaryFormatter binFormat = new BinaryFormatter();

        using (Stream fStream = new FileStream("test" + ".dat",
            FileMode.Create, FileAccess.Write, FileShare.None))
        {
            binFormat.Serialize(fStream, repository);
        }
    }

编辑：最后是例外：

System.Runtime.Serialization.SerializationException was unhandled
Message=Type 'HPOO_Repository_Scanner.MainWindow' in Assembly 'HPOO Repository Scanner, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
Source=mscorlib
StackTrace:


    at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type)
       at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
       at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
       at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
       at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
       at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)
       at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
       at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
       at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
       at HPOO_Repository_Scanner.MainWindow.SaveRepo(Object repository) in \\tsclient\D\Dropbox\_Work\Visual Studio Projects\HPOO Repository Scanner\HPOO Repository Scanner\HPOO Repository Scanner\MainWindow.xaml.cs:line 179
       at HPOO_Repository_Scanner.MainWindow.mnuSave_Click(Object sender, RoutedEventArgs e) in \\tsclient\D\Dropbox\_Work\Visual Studio Projects\HPOO Repository Scanner\HPOO Repository Scanner\HPOO Repository Scanner\MainWindow.xaml.cs:line 168
       at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
       at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
       at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
       at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
       at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.DispatcherOperation.InvokeImpl()
       at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
       at System.Threading.ExecutionContext.runTryCode(Object userData)
       at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Windows.Threading.DispatcherOperation.Invoke()
       at System.Windows.Threading.Dispatcher.ProcessQueue()
       at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
       at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
       at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
       at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
       at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
       at System.Windows.Threading.Dispatcher.Run()
       at System.Windows.Application.RunDispatcher(Object ignore)
       at System.Windows.Application.RunInternal(Window window)
       at System.Windows.Application.Run(Window window)
       at System.Windows.Application.Run()
       at HPOO_Repository_Scanner.App.Main() in \\tsclient\D\Dropbox\_Work\Visual Studio Projects\HPOO Repository Scanner\HPOO Repository Scanner\HPOO Repository Scanner\obj\x86\Debug\App.g.cs:line 0
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

Answer 1

我假设您正在使用XML序列化程序。您应该显示序列化代码。此外，在获取异常时，显示异常和堆栈跟踪。使用此信息确定上下文要容易得多。

如果是这样，您必须使用[XmlIgnore]而不是[NonSerialized]属性。

Answer 2

我觉得自己像个白痴;今天早上我能够弄明白。

我不得不从我的repo对象中分离ProgressChanged事件处理程序。

它是在创建对象时附加的

repo.ProgressChanged += new ProgressChangedEventHandler(repo_ProgressChanged);

现在在保存对象状态之前删除了

private void mnuSave_Click(object sender, RoutedEventArgs e)
{
  repo.ProgressChanged -= repo_ProgressChanged;
  SaveRepo(repo);
}

希望能帮助遇到同样问题的其他人。

c＃Serializable类 - 发生WPF MainWindow异常

2 个答案: