超额属性网格- [RefreshProperties(RefreshProperties. all)]属性不工作

本文关键字：属性 RefreshProperties 工作 all 网格 | 更新日期: 2023-09-27 18:01:16

我有一个具有属性的类，基于选择组合框属性中的一个项目，其他属性将显示或隐藏。我使用[RefreshProperties(RefreshProperties. all)]作为组合框属性。类，该类绑定到属性grid:

[TypeConverter(typeof(PropertySubsetConverter<FileSystemOperation>))]
 public class FileSystemOperation : IPropertySubsetObject
 { 
    [Description("File system operations like Copy, Move, Delete & Check file.")]
    [Category("Mandatory")]
    [RefreshProperties(RefreshProperties.All)]
    public Op Operation { get; set; }
 public enum Op
{
  /// <summary>
  /// Copy file
  /// </summary>
  CopyFile,
  /// <summary>
  /// Move file
  /// </summary>
  MoveFile,
  /// <summary>
  /// Delete file
  /// </summary>
  DeleteFile,
  /// <summary>
  /// Delete directory
  /// </summary>
  DeleteDirectory,
  /// <summary>
  /// Check if file exists
  /// </summary>
  ExistFile
}
 }

如果用户选择'DeleteDirectory'，下面的属性应该显示，其他属性应该隐藏

[AppliesTo(Op.DeleteDirectory)]
public bool Recursive { get; set; }
我的Xaml

: 

<xctk:PropertyGrid x:Name="pk"  HorizontalAlignment="Stretch"  VerticalAlignment="Stretch" FontWeight="ExtraBold" IsEnabled="{Binding PropertyGridIsEnabled}"  SelectedObject="{Binding SelectedElement, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Background="#FF4A5D80" Foreground="White"/>

这适用于Winform属性网格，但不适用于Xceed wpf属性网格。需要帮助，如果我缺少任何属性设置。

超额属性网格- [RefreshProperties(RefreshProperties. all)]属性不工作

我在修改属性的ReadOnly属性时遇到了同样的问题。WinForm PropertyGrid工作，Xceed PropertyGrid没有。也许付费的Plus版本会起作用。它有一个DependsOn属性。

我用PropertyGrid的PropertyValueChanged事件解决了这个问题。

private void propertyGrid_PropertyValueChanged(object sender, PropertyValueChangedEventArgs e)
{
    // get the descriptor of the changed property
    PropertyDescriptor propDesc = ((PropertyItem)e.OriginalSource).PropertyDescriptor;
    // try to get the RefreshPropertiesAttribute
    RefreshPropertiesAttribute attr
        = (RefreshPropertiesAttribute)propDesc.Attributes[typeof(RefreshPropertiesAttribute)];
    // if the attribute exists and it is set to All
    if (attr != null && attr.RefreshProperties == RefreshProperties.All)
    {
        // invoke PropertyGrid.UpdateContainerHelper
        MethodInfo updateMethod = propertyGrid.GetType().GetMethod(
            "UpdateContainerHelper", BindingFlags.NonPublic | BindingFlags.Instance);
        updateMethod.Invoke(propertyGrid, new object[0]);
    }
}
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