Question

我是WPF新手，我正在使用xceed属性网格，在我的课程中我有一个自定义集合编辑器。根据xceed，我发现我必须实现＆＃34; Xceed.Wpf.Toolkit.PropertyGrid.Editors.ITypeEditor＆＃34;，我已经实现了它，但是在尝试设置绑定时出错。错误消息：＆＃39;双向绑定需要Path或XPath＆＃39;。下面是c＃类，其中定义了属性：

 /// <summary>
/// The expected assembly versions.
/// </summary>
[DescriptionAttribute("The expected assembly versions.")]
[Category("Mandatory")]
[ExpandableObject]
[Editor(typeof(Assembly), typeof(Assembly))]
public Assembly[] ExpectedAssemblyVersions
{
  get;
  set;
}
   /// <summary>
/// To verify assembly and there versions
/// </summary>
[TypeConverterAttribute(typeof(ExpandableObjectConverter))]
public class Assembly : Xceed.Wpf.Toolkit.PropertyGrid.Editors.ITypeEditor
{
  /// <summary>
  /// Assembly Name
  /// </summary>
  public string Name { get; set; }
  /// <summary>
  /// Assembly versions
  /// </summary>
  public string[] Versions { get; set; }

  #region Implementation of ITypeEditor
  /// <summary>
  /// 
  /// </summary>
  /// <param name="propertyItem"></param>
  /// <returns></returns>
  public FrameworkElement ResolveEditor(PropertyItem propertyItem)
  {
    TextBox textBox = new TextBox();
    var _binding = new Binding(Name);
    _binding.Source = propertyItem;
    _binding.ValidatesOnExceptions = true;
    _binding.ValidatesOnDataErrors = true;
    _binding.Mode = propertyItem.IsReadOnly ? BindingMode.OneWay : BindingMode.TwoWay;
    BindingOperations.SetBinding(textBox, TextBox.TextProperty, _binding);
    return textBox;
  }
  #endregion
}

Xaml绑定：

<xctk:PropertyGrid Name="pk" Foreground="{Binding SelectedTheme.FontShade}" HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" FontWeight="ExtraBold"  Background="{Binding SelectedTheme.DarkShade}" SelectedObject="{Binding SelectedElement,UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"/>

实施＆＃39; ResolveEditor＆＃39;不完整，我需要帮助解决这个问题。

Answer 1

你的意思是这样的：

class Properties
{
    private List<Assembly> assemblies = new List<Assembly>();

    [DisplayName("ExpectedAssemblyVersions")]
    [Description("The expected assembly versions.")]
    [Category("Mandatory")]
    [Editor(typeof(CollectionEditor), typeof(CollectionEditor))]
    public List<Assembly> Assemblies
    {
        get
        {
            return assemblies;
        }
        set
        {
            assemblies = value;
        }
    }
}

class Assembly
{
    public string Name { get; set; }

    public string Version { get; set; }
}

Xceed WPF propertyGrid自定义集合编辑器

1 个答案: