Exception WPF Designer lors de l'édition de l'interface utilisateur dans Visual studio 2008

Question

J'ai VS2008 avec .net 3.5 SP1 installé sur ma machine, j'ai écrit une application simple avec deux listviews et databinding, Mon application se compile bien et je suis capable de l'exécuter, mais quand j'essaie d'ouvrir le designer pour éditer les contrôles, j'obtiens l'erreur suivante. Je ne comprends pas pourquoi cela se produit. Une idée...voir xaml sous ce message d'erreur

Le type 'MS.Internal.Permissions.UserInitiatedNavigationPermission' de l'assemblage 'PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' n'est pas marqué comme sérialisable. 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.Remoting.Channels.CrossAppDomainSerializer.SerializeObject(Object obj, MemoryStream stm) à System.AppDomain.Serialize(Object o) at System.AppDomain.MarshalObject(Object o) at System.Threading.CompressedStack.GetDomainCompressedStack(SafeCompressedStackHandle compressedStack, Int32 index) at System.Security.PermissionListSet.CreateCompressedState(CompressedStack cs, CompressedStack innerCS) at System.Threading.CompressedStack.CompleteConstruction(CompressedStack innerCS) at System.Threading.CompressedStack.GetCompressedStack(StackCrawlMark& stackMark) at System.Security.SecurityContext.Capture(ExecutionContext currThreadEC, StackCrawlMark& stackMark) at System.Threading.ExecutionContext.Capture(StackCrawlMark& stackMark) at System.Threading.ExecutionContext.Capture() at System.Windows.Threading.Dispatcher.BeginInvokeImpl(DispatcherPriority priority, Delegate method, Object args, Boolean isSingleParameter) at System.Windows.Threading.Dispatcher.BeginInvoke(DispatcherPriority priority, Delegate method, Object arg) at System.Windows.Input.CommandManager.RaiseRequerySuggested() à System.Windows.Input.CommandManager.InvalidateRequerySuggested() at Microsoft.Windows.Design.Interaction.Tool.TaskCollection.InsertItem(Int32 index, Task item) at System.Collections.ObjectModel.Collection`1.Add(T item) at Microsoft.Windows.Design.Interaction.SelectionTool..ctor() at MS.Internal.Providers.VSActiveToolProvider.SelectionToolFactory.TryCreateTool[T](T& tool) at MS.Internal.Host.ToolSubsystem.ActivateTool(ToolFactory toolFactory) at MS.Internal.Host.ToolSubsystem..ctor(EditingContext editingContext, DesignerContext designerContext) at MS.Internal.Host.Designer.Load() at MS.Internal.Designer.VSDesigner.Load() at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedView.Load() at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedDesignerFactory.Load(IsolatedView view) at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory, IsolatedView view) at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view) à MS.Internal.Host.Isolation.IsolatedDesigner.Load() at MS.Internal.Designer.DesignerPane.LoadDesignerView()

XAML :

<Grid Name="pngrid_Base" Height="auto" Width="auto" Background="Beige">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="auto" MinWidth="221"></ColumnDefinition>
        <ColumnDefinition Width="auto" MinWidth="1" MaxWidth="1"></ColumnDefinition>
        <ColumnDefinition Width="auto"></ColumnDefinition>
    </Grid.ColumnDefinitions>
        <Grid Name="pngrid_BaseForAll" Grid.Column="0" Width="auto" HorizontalAlignment="Left" Background="#FFD8E4F8">
     <Grid.RowDefinitions>
        <RowDefinition Height="30*"/>
        <RowDefinition Height="164*" />
        <RowDefinition Height="35*" />
        <RowDefinition Height="164*" />
        <RowDefinition Height="40*" />
    </Grid.RowDefinitions>
        <ListView  Name="lstview_Unack" Grid.Row="1" Margin="2,0,0,0" SelectionMode="Extended"  LostFocus="lstview_Unack_LostFocus" 
                                                                                                MouseRightButtonDown="lstview_Unack_MouseRightButtonDown">

            <ListView.ItemContainerStyle>
                <Style TargetType="ListViewItem">
                    <Setter Property="IsSelected" Value="{Binding Path=IsSelected, Mode=TwoWay}" />
                </Style>
            </ListView.ItemContainerStyle>
        </ListView>
        <Button Grid.Row="2" HorizontalAlignment="Left" Margin="24,14,0,5" Name="btnFreeze">Freeze</Button>
            <Button Grid.Row="2" HorizontalAlignment="Left" Margin="12,7,0,5" Name="btnAcknowledge" Width="96">Acknowledge</Button>
        <ListView  Name = "lstview_Ack" Grid.Row="3" Margin="2,1,0,0" LostFocus="lstview_Ack_LostFocus" SelectionMode="Extended" MouseRightButtonDown="lstview_Ack_MouseRightButtonDown">
            <ListView.ItemContainerStyle>
                <Style TargetType="ListViewItem">
                    <Setter Property="IsSelected" Value="{Binding Path=IsSelected, Mode=TwoWay}" />                            
                </Style>
            </ListView.ItemContainerStyle>
        </ListView>

        <Button Grid.Row="4" HorizontalAlignment="Left" Margin="16,12,0,7" Name="Clear" Width="78">Clear</Button>
    <TextBox Margin="110,6,32,5" Name="FilterText" TextChanged="FilterText_TextChanged" />
    <ComboBox HorizontalAlignment="Left" Margin="14,5,0,4" Name="comboColumnList" Width="94" />
</Grid>
    <GridSplitter Grid.Column="1" Name="gridSplitter1" Width="2" HorizontalContentAlignment="Center" VerticalContentAlignment="Stretch" HorizontalAlignment="Left" Background="Azure" />
    <Grid Name="pnGridForTreeView" Grid.Column="2" Width="200" Grid.ColumnSpan="2">
        <my:TrinityDeviceTree  x:Name ="m_objDeviceTree" Height="auto" Width="auto">

        </my:TrinityDeviceTree>
    </Grid>

</Grid>

Answer 1

J'ai testé votre code dans VS2008 avec .NET 3.5 SP1 et si je supprime la déclaration pour TrinityDeviceTree, cela fonctionne bien avec le designer. Peut-être que vous devriez vérifier ce UserControl et chercher des erreurs. Essayez également de nettoyer votre projet et de le reconstruire, parfois cela fonctionne pour les problèmes du concepteur visuel.