WPF对绑定的ComboBox进行正确的编程绑定

我正在使用wpf应用程序，目前正在实现属性网格框，类似于您在Visual Studio的属性窗口中可能看到的框 .

当我使用反射选择应用程序中的项目时，我会动态填充此属性窗口，但这意味着我必须动态创建输入方法 . （文本框，复选框，组合框），具体取决于属性的类型 .

由于这是动态生成的，因此我不得不以编程方式创建这些项目 .

我有以下代码，用于确定是从属性生成文本框还是组合框，然后绑定组合框 .

var attribute = (PropertyWindowAttribute) attributes[i];
           if (attribute.Enumerated)
           {
             var combo = new ComboBox();
             var binding = CreatePropertyBinding(Model.component, attribute.PropertyName);
             combo.SetBinding(Selector.SelectedItemProperty, binding);
             var enumValues =  Enum.GetNames(Model.component.GetType().GetProperty(attribute.PropertyName).PropertyType);
             foreach (var e in enumValues)
             {
                    var item = new ComboBoxItem();
                     item.Content = e;
                    combo.Items.Add(item);
             }
             propertyList.Add(new PropertyElement(attribute.DisplayName, combo));
          }
          else
          {
               var binding = CreatePropertyBinding(Model.component, attribute.PropertyName);
               var box = new TextBox();
               box.SetBinding(TextBox.TextProperty, binding);
               propertyList.Add(new PropertyElement(attribute.DisplayName, box));
                    }
         }

我也有这个实用方法被引用

private static Binding CreatePropertyBinding(Component component, string path)
    {
        Binding binding = new Binding();
        binding.Path = new PropertyPath(path);
        binding.Mode = BindingMode.TwoWay;
        binding.Source = component;

        return binding;

    }

我遇到的问题是当我转到我的应用程序，并尝试更改组合框的值时，我在我的应用程序中得到以下错误输出

System.Windows.Data Error: 23 : Cannot convert 'System.Windows.Controls.ComboBoxItem: Stretch' from type 'ComboBoxItem' to type 'System.Windows.HorizontalAlignment' for 'en-US' culture with default conversions; consider using Converter property of Binding. NotSupportedException:'System.NotSupportedException: EnumConverter cannot convert from System.Windows.Controls.ComboBoxItem.
   at System.ComponentModel.TypeConverter.GetConvertFromException(Object value)
   at System.ComponentModel.TypeConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
   at System.ComponentModel.EnumConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
   at MS.Internal.Data.DefaultValueConverter.ConvertHelper(Object o, Type destinationType, DependencyObject targetElement, CultureInfo culture, Boolean isForward)'
System.Windows.Data Error: 7 : ConvertBack cannot convert value 'System.Windows.Controls.ComboBoxItem: Stretch' (type 'ComboBoxItem'). BindingExpression:Path=ComponentHorizontalAlignment; DataItem='TextFieldComponent' (HashCode=31097589); target element is 'ComboBox' (Name=''); target property is 'SelectedItem' (type 'Object') NotSupportedException:'System.NotSupportedException: EnumConverter cannot convert from System.Windows.Controls.ComboBoxItem.
   at MS.Internal.Data.DefaultValueConverter.ConvertHelper(Object o, Type destinationType, DependencyObject targetElement, CultureInfo culture, Boolean isForward)
   at MS.Internal.Data.ObjectTargetConverter.ConvertBack(Object o, Type type, Object parameter, CultureInfo culture)
   at System.Windows.Data.BindingExpression.ConvertBackHelper(IValueConverter converter, Object value, Type sourceType, Object parameter, CultureInfo culture)'

绑定到组合框的值来自枚举，但我不确定这是什么修复 .