C# XamlWriter.Save会丢失列表框中的ItemsSource绑定

我有一个自定义的ContentControl

public class DataControl : ContentControl
{
    public List<DataItem> Options
    {
        get { return (List<DataItem>)GetValue(OptionsProperty); }
        set { SetValue(OptionsProperty, value); }
    }

    public static readonly DependencyProperty OptionsProperty =
        DependencyProperty.Register("Options", typeof(List<DataItem>), typeof(DataControl));

    public DataControl()
    {
        Options = new List<DataItem>();
    }

    public string Label
    {
        get { return (string)GetValue(LabelProperty); }
        set { SetValue(LabelProperty, value); }
    }

    // Using a DependencyProperty as the backing store for Label.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty LabelProperty =
        DependencyProperty.Register("Label", typeof(string), typeof(DataControl));
}

public class DataItem
{
    public DataItem(string key, string value)
    {
        Key = key;
        Value = value;
    }

    public string Key { get; set; }

    public string Value { get; set; }
}

有没有办法确保ItemsSource绑定被正确序列化，或者轻松地将其添加回去

当试图从另一个项目的ResourceDictionary中获取样式时，也会发生这种情况，例如

ResourceDictionary styles = new ResourceDictionary();
styles.Source = new Uri(String.Format("pack://application:,,,/StyleCopyTest;component/Styles/{0}Styles.xaml", type));
return styles;

---

在WPF源代码中，ItemsSource定义为

[Bindable(true), CustomCategory("Content"),     DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public IEnumerable ItemsSource { get; set; }

因此，XamlWriter无法序列化此文件

因此，您必须编写自己的序列化程序或使用前面提到的方法

我找到了这个类，它可以帮助您序列化ItemsControl属性绑定：

using System;
using System.Linq;
using System.ComponentModel;

namespace GUIKonfigurator
{
    using System.Windows.Controls;

    public class ItemsControlTypeDescriptionProvider:TypeDescriptionProvider
    {
        private static readonly TypeDescriptionProvider defaultTypeProvider = TypeDescriptor.GetProvider(typeof(ItemsControl));

        public ItemsControlTypeDescriptionProvider(): base(defaultTypeProvider)
        {
        }

        public static void Register()
        {
            TypeDescriptor.AddProvider(new ItemsControlTypeDescriptionProvider(), typeof(ItemsControl));
        }

        public override ICustomTypeDescriptor GetTypeDescriptor(Type objectType,object instance)
        {
            ICustomTypeDescriptor defaultDescriptor = base.GetTypeDescriptor(objectType, instance);
            return instance == null ? defaultDescriptor: new ItemsControlCustomTypeDescriptor(defaultDescriptor);
        }
    }

    internal class ItemsControlCustomTypeDescriptor: CustomTypeDescriptor
    {
        public ItemsControlCustomTypeDescriptor(ICustomTypeDescriptor parent): base(parent)
        {
        }

        public override PropertyDescriptorCollection GetProperties()
        {
            PropertyDescriptorCollection pdc = new PropertyDescriptorCollection(base.GetProperties().Cast<PropertyDescriptor>().ToArray());
            return ConvertPropertys(pdc);
        }

        public override PropertyDescriptorCollection GetProperties(Attribute[] attributes)
        {
            PropertyDescriptorCollection pdc = new PropertyDescriptorCollection(base.GetProperties(attributes).Cast<PropertyDescriptor>().ToArray());
            return ConvertPropertys(pdc);
        }

        private PropertyDescriptorCollection ConvertPropertys(PropertyDescriptorCollection pdc)
        {
            PropertyDescriptor pd = pdc.Find("ItemsSource", false);
            if (pd != null)
            {
                PropertyDescriptor pdNew = TypeDescriptor.CreateProperty(typeof(ItemsControl), pd, new Attribute[]
                                                                                                       {
                                                                                                           new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible),
                                                                                                           new DefaultValueAttribute("")
                                                                                                       });
                pdc.Add(pdNew);
                pdc.Remove(pd);
            }
            return pdc;
        }
    }
}

这里是结果Xaml，包括ItemsSource绑定：

<ComboBox Width="100" Height="20" ItemsSource="{Binding Path=Model.Activity}" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" />

---

希望这有帮助，我仍然需要花一些时间来理解它，但到目前为止似乎正在工作…

您是否尝试了中的解决方案？我尝试了，但它没有解决问题。.Net 4.0解决方案没有保留ItemsSource绑定，更糟糕的是，它会丢失ListBox.ItemTemplate中标签上的内容绑定。创建ExpressionConverter会修复内容绑定，但仍不会保存ItemsSource绑定。

using System;
using System.Linq;
using System.ComponentModel;

namespace GUIKonfigurator
{
    using System.Windows.Controls;

    public class ItemsControlTypeDescriptionProvider:TypeDescriptionProvider
    {
        private static readonly TypeDescriptionProvider defaultTypeProvider = TypeDescriptor.GetProvider(typeof(ItemsControl));

        public ItemsControlTypeDescriptionProvider(): base(defaultTypeProvider)
        {
        }

        public static void Register()
        {
            TypeDescriptor.AddProvider(new ItemsControlTypeDescriptionProvider(), typeof(ItemsControl));
        }

        public override ICustomTypeDescriptor GetTypeDescriptor(Type objectType,object instance)
        {
            ICustomTypeDescriptor defaultDescriptor = base.GetTypeDescriptor(objectType, instance);
            return instance == null ? defaultDescriptor: new ItemsControlCustomTypeDescriptor(defaultDescriptor);
        }
    }

    internal class ItemsControlCustomTypeDescriptor: CustomTypeDescriptor
    {
        public ItemsControlCustomTypeDescriptor(ICustomTypeDescriptor parent): base(parent)
        {
        }

        public override PropertyDescriptorCollection GetProperties()
        {
            PropertyDescriptorCollection pdc = new PropertyDescriptorCollection(base.GetProperties().Cast<PropertyDescriptor>().ToArray());
            return ConvertPropertys(pdc);
        }

        public override PropertyDescriptorCollection GetProperties(Attribute[] attributes)
        {
            PropertyDescriptorCollection pdc = new PropertyDescriptorCollection(base.GetProperties(attributes).Cast<PropertyDescriptor>().ToArray());
            return ConvertPropertys(pdc);
        }

        private PropertyDescriptorCollection ConvertPropertys(PropertyDescriptorCollection pdc)
        {
            PropertyDescriptor pd = pdc.Find("ItemsSource", false);
            if (pd != null)
            {
                PropertyDescriptor pdNew = TypeDescriptor.CreateProperty(typeof(ItemsControl), pd, new Attribute[]
                                                                                                       {
                                                                                                           new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Visible),
                                                                                                           new DefaultValueAttribute("")
                                                                                                       });
                pdc.Add(pdNew);
                pdc.Remove(pd);
            }
            return pdc;
        }
    }
}

EditorHelper.Register<BindingExpression, BindingConvertor>();
ItemsControlTypeDescriptionProvider.Register();

ComboBox cb = new ComboBox();
cb.Width = 100;
cb.Height = 20;
Binding b = new Binding("Model.Activity");
b.Source = this.DataContext;
cb.SetBinding(ComboBox.ItemsSourceProperty, b);
string xaml = _Serializer.SerializeControlToXaml(cb);

<ComboBox Width="100" Height="20" ItemsSource="{Binding Path=Model.Activity}" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" />