public virtual void PrepareChildrenPropertyItem(PropertyItemBase propertyItem, object item)
{
// Initialize the parent node
propertyItem.ParentNode = PropertyContainer;
PropertyGrid.RaisePreparePropertyItemEvent((UIElement)PropertyContainer, propertyItem, item);
}
public override Binding CreateChildrenDefaultBinding(PropertyItemBase propertyItem)
{
Binding binding = new Binding("Value");
binding.Mode = (((PropertyItem)propertyItem).IsReadOnly) ? BindingMode.OneWay : BindingMode.TwoWay;
return(binding);
}
private static void OnIsSelectedChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
PropertyItemBase propertyItem = o as PropertyItemBase;
if (propertyItem != null)
{
propertyItem.OnIsSelectedChanged((bool)e.OldValue, (bool)e.NewValue);
}
}
public override void ClearChildrenPropertyItem(PropertyItemBase propertyItem, object item)
{
if (propertyItem.Editor != null &&
ContainerHelperBase.GetIsGenerated(propertyItem.Editor))
{
propertyItem.Editor = null;
}
base.ClearChildrenPropertyItem(propertyItem, item);
}
public override object ItemFromContainer(PropertyItemBase container)
{
// Since this call is only used to update the PropertyGrid.SelectedProperty property,
// return the PropertyName.
var propertyItem = container as PropertyItem;
if (propertyItem == null)
{
return(null);
}
return(propertyItem.PropertyDescriptor.Name);
}
protected virtual void OnSelectedPropertyItemChanged(PropertyItemBase oldValue, PropertyItemBase newValue)
{
if (oldValue != null)
{
oldValue.IsSelected = false;
}
if (newValue != null)
{
newValue.IsSelected = true;
}
this.SelectedProperty = (newValue != null) ? _containerHelper.ItemFromContainer(newValue) : null;
RaiseEvent(new RoutedPropertyChangedEventArgs <PropertyItemBase>(oldValue, newValue, PropertyGrid.SelectedPropertyItemChangedEvent));
}
private void OnItemSelectionChanged(object sender, RoutedEventArgs args)
{
PropertyItemBase item = (PropertyItemBase)args.OriginalSource;
if (item.IsSelected)
{
SelectedPropertyItem = item;
}
else
{
if (object.ReferenceEquals(item, SelectedPropertyItem))
{
SelectedPropertyItem = null;
}
}
}
public override void PrepareChildrenPropertyItem(PropertyItemBase propertyItem, object item)
{
_isPreparingItemFlag = true;
base.PrepareChildrenPropertyItem(propertyItem, item);
if (propertyItem.Editor == null)
{
FrameworkElement editor = this.GenerateChildrenEditorElement((PropertyItem)propertyItem);
if (editor != null)
{
// Tag the editor as generated to know if we should clear it.
ContainerHelperBase.SetIsGenerated(editor, true);
propertyItem.Editor = editor;
}
}
_isPreparingItemFlag = false;
}
public abstract Binding CreateChildrenDefaultBinding(PropertyItemBase propertyItem);
public abstract object ItemFromContainer(PropertyItemBase container);
protected FrameworkElement CreateCustomEditor(EditorDefinitionBase customEditor, PropertyItemBase propertyItem)
{
return((customEditor != null)
? customEditor.GenerateEditingElementInternal(propertyItem)
: null);
}
protected FrameworkElement GenerateCustomEditingElement(object definitionKey, PropertyItemBase propertyItem)
{
return((PropertyContainer.EditorDefinitions != null)
? this.CreateCustomEditor(PropertyContainer.EditorDefinitions[definitionKey], propertyItem)
: null);
}
protected FrameworkElement GenerateCustomEditingElement(Type definitionKey, PropertyItemBase propertyItem)
{
return((PropertyContainer.EditorDefinitions != null)
? this.CreateCustomEditor(PropertyContainer.EditorDefinitions.GetRecursiveBaseTypes(definitionKey), propertyItem)
: null);
}
public virtual void ClearChildrenPropertyItem(PropertyItemBase propertyItem, object item)
{
propertyItem.ParentNode = null;
PropertyGrid.RaiseClearPropertyItemEvent((UIElement)PropertyContainer, propertyItem, item);
}
private void RaiseClearPropertyItemEvent(PropertyItemBase propertyItem, object item)
{
this.RaiseEvent(new PropertyItemEventArgs(PropertyItemsControl.ClearPropertyItemEvent, this, propertyItem, item));
}
public PropertyItemEventArgs(RoutedEvent routedEvent, object source, PropertyItemBase propertyItem, object item)
: base(routedEvent, source)
{
this.PropertyItem = propertyItem;
this.Item = item;
}
internal static void RaiseClearPropertyItemEvent(UIElement source, PropertyItemBase propertyItem, object item)
{
source.RaiseEvent(new PropertyItemEventArgs(PropertyGrid.ClearPropertyItemEvent, source, propertyItem, item));
}