private string ComputeDisplayName()
{
#if VS2008
var displayName = PropertyDescriptor.DisplayName;
#else
var displayAttribute = PropertyGridUtilities.GetAttribute <DisplayAttribute>(PropertyDescriptor);
var displayName = (displayAttribute != null) ? displayAttribute.GetName() : PropertyDescriptor.DisplayName;
#endif
var attribute = PropertyGridUtilities.GetAttribute <ParenthesizePropertyNameAttribute>(PropertyDescriptor);
if ((attribute != null) && attribute.NeedParenthesis)
{
displayName = "(" + displayName + ")";
}
return(displayName);
}
private List <PropertyItem> GetObjectProperties(object instance)
{
var propertyItems = new List <PropertyItem>();
if (instance == null)
{
return(propertyItems);
}
try
{
PropertyDescriptorCollection descriptors = PropertyGridUtilities.GetPropertyDescriptors(instance);
if (!AutoGenerateProperties)
{
List <PropertyDescriptor> specificProperties = new List <PropertyDescriptor>();
foreach (PropertyDefinition pd in PropertyDefinitions)
{
foreach (PropertyDescriptor descriptor in descriptors)
{
if (descriptor.Name == pd.Name)
{
specificProperties.Add(descriptor);
break;
}
}
}
descriptors = new PropertyDescriptorCollection(specificProperties.ToArray());
}
foreach (PropertyDescriptor descriptor in descriptors)
{
if (descriptor.IsBrowsable)
{
propertyItems.Add(PropertyGridUtilities.CreatePropertyItem(descriptor, instance, this, descriptor.Name));
}
}
}
catch (Exception)
{
//TODO: handle this some how
}
return(propertyItems);
}
internal object ComputeDisplayOrderForItem(object item)
{
PropertyDescriptor pd = item as PropertyDescriptor;
#if !VS2008
var displayAttribute = PropertyGridUtilities.GetAttribute <DisplayAttribute>(PropertyDescriptor);
if (displayAttribute != null)
{
var order = displayAttribute.GetOrder();
if (order.HasValue)
{
return(displayAttribute.GetOrder());
}
}
#endif
List <PropertyOrderAttribute> list = pd.Attributes.OfType <PropertyOrderAttribute>().ToList();
if (list.Count > 0)
{
this.ValidatePropertyOrderAttributes(list);
if (this.IsPropertyGridCategorized)
{
var attribute = list.FirstOrDefault(x => ((x.UsageContext == UsageContextEnum.Categorized) ||
(x.UsageContext == UsageContextEnum.Both)));
if (attribute != null)
{
return(attribute.Order);
}
}
else
{
var attribute = list.FirstOrDefault(x => ((x.UsageContext == UsageContextEnum.Alphabetical) ||
(x.UsageContext == UsageContextEnum.Both)));
if (attribute != null)
{
return(attribute.Order);
}
}
}
// Max Value. Properties with no order will be displayed last.
return(int.MaxValue);
}
internal static PropertyItem CreatePropertyItem(PropertyDescriptor property, object instance, PropertyGrid grid, string bindingPath)
{
PropertyItem propertyItem = new PropertyItem(instance, property, grid, bindingPath);
var binding = new Binding(bindingPath)
{
Source = instance,
ValidatesOnExceptions = true,
ValidatesOnDataErrors = true,
Mode = propertyItem.IsReadOnly ? BindingMode.OneWay : BindingMode.TwoWay
};
propertyItem.SetBinding(PropertyItem.ValueProperty, binding);
propertyItem.Editor = PropertyGridUtilities.GetTypeEditor(propertyItem, grid.EditorDefinitions);
return(propertyItem);
}
internal static FrameworkElement GetTypeEditor(PropertyItem propertyItem, EditorDefinitionCollection editorDefinitions)
{
//first check for an attribute editor
FrameworkElement editor = PropertyGridUtilities.GetAttibuteEditor(propertyItem);
//now look for a custom editor based on editor definitions
if (editor == null)
{
editor = PropertyGridUtilities.GetCustomEditor(propertyItem, editorDefinitions);
}
//guess we have to use the default editor
if (editor == null)
{
editor = PropertyGridUtilities.CreateDefaultEditor(propertyItem);
}
return(editor);
}
private void LoadProperties(bool isCategorized)
{
if (_propertyItemsCache == null)
{
return;
}
//clear any filters first
Filter = String.Empty;
if (isCategorized)
{
Properties = PropertyGridUtilities.GetCategorizedProperties(_propertyItemsCache);
}
else
{
Properties = PropertyGridUtilities.GetAlphabetizedProperties(_propertyItemsCache);
}
}
internal object ComputeDescriptionForItem(object item)
{
PropertyDescriptor pd = item as PropertyDescriptor;
//We do not simply rely on the "Description" property of PropertyDescriptor
//since this value is cached by PropertyDescriptor and the localized version
//(e.g., LocalizedDescriptionAttribute) value can dynamicaly change.
#if !VS2008
var displayAttribute = PropertyGridUtilities.GetAttribute <DisplayAttribute>(pd);
if (displayAttribute != null)
{
return(displayAttribute.GetDescription());
}
#endif
var descriptionAtt = PropertyGridUtilities.GetAttribute <DescriptionAttribute>(pd);
return((descriptionAtt != null)
? descriptionAtt.Description
: pd.Description);
}
internal static Predicate <object> CreateFilter(string text, IList <PropertyItem> PropertyItems, IPropertyContainer propertyContainer)
{
Predicate <object> filter = null;
if (!string.IsNullOrEmpty(text))
{
filter = (item) =>
{
var property = item as PropertyItem;
if (property.DisplayName != null)
{
#if !VS2008
var displayAttribute = PropertyGridUtilities.GetAttribute <DisplayAttribute>(property.PropertyDescriptor);
if (displayAttribute != null)
{
var canBeFiltered = displayAttribute.GetAutoGenerateFilter();
if (canBeFiltered.HasValue && !canBeFiltered.Value)
{
return(false);
}
}
#endif
property.HighlightedText = property.DisplayName.ToLower().Contains(text.ToLower()) ? text : null;
return(property.HighlightedText != null);
}
return(false);
};
}
else
{
ClearFilterSubItems(PropertyItems.ToList());
}
return(filter);
}
internal FrameworkElement GenerateChildrenEditorElement(PropertyItem propertyItem)
{
FrameworkElement editorElement = null;
DescriptorPropertyDefinitionBase pd = propertyItem.DescriptorDefinition;
object definitionKey = null;
Type definitionKeyAsType = definitionKey as Type;
ITypeEditor editor = null;
if (editor == null)
{
editor = pd.CreateAttributeEditor();
}
if (editor != null)
{
editorElement = editor.ResolveEditor(propertyItem);
}
if ((editorElement == null) && (definitionKey == null) && (propertyItem.PropertyDescriptor != null))
{
editorElement = this.GenerateCustomEditingElement(propertyItem.PropertyDescriptor.Name, propertyItem);
}
if (editorElement == null && definitionKeyAsType == null)
{
editorElement = this.GenerateCustomEditingElement(propertyItem.PropertyType, propertyItem);
}
if (this.PropertyContainer != null && this.PropertyContainer.EditorDefinitions != null)
{
foreach (var edef in this.PropertyContainer.EditorDefinitions.Where(x => x != null && x.HasAttribute != null))
{
if (propertyItem.PropertyDescriptor.Attributes.Cast <Attribute>().Any(x => x.GetType() == edef.HasAttribute))
{
return(edef.GenerateEditingElementInternal(propertyItem));
}
}
}
if (editorElement == null)
{
if (pd.IsReadOnly)
{
editor = new TextBlockEditor();
}
// Fallback: Use a default type editor.
if (editor == null)
{
editor = (definitionKeyAsType != null)
? PropertyGridUtilities.CreateDefaultEditor(definitionKeyAsType, null, propertyItem)
: pd.CreateDefaultEditor(propertyItem);
}
Debug.Assert(editor != null);
editorElement = editor.ResolveEditor(propertyItem);
}
return(editorElement);
}
protected override void GenerateSubPropertiesCore(Action <IEnumerable <PropertyItem> > updatePropertyItemsCallback)
{
var propertyItems = new List <PropertyItem>();
if (SelectedObject != null)
{
try
{
var descriptors = new List <PropertyDescriptor>();
{
descriptors = ObjectContainerHelperBase.GetPropertyDescriptors(SelectedObject, this.PropertyContainer.HideInheritedProperties);
}
foreach (var descriptor in descriptors)
{
var propertyDef = this.GetPropertyDefinition(descriptor);
bool isBrowsable = false;
var isPropertyBrowsable = this.PropertyContainer.IsPropertyVisible(descriptor);
if (isPropertyBrowsable.HasValue)
{
isBrowsable = isPropertyBrowsable.Value;
}
else
{
#if !VS2008
var displayAttribute = PropertyGridUtilities.GetAttribute <DisplayAttribute>(descriptor);
if (displayAttribute != null)
{
var autoGenerateField = displayAttribute.GetAutoGenerateField();
isBrowsable = this.PropertyContainer.AutoGenerateProperties &&
((autoGenerateField.HasValue && autoGenerateField.Value) || !autoGenerateField.HasValue);
}
else
#endif
{
isBrowsable = descriptor.IsBrowsable && this.PropertyContainer.AutoGenerateProperties;
}
if (propertyDef != null)
{
isBrowsable = propertyDef.IsBrowsable.GetValueOrDefault(isBrowsable);
}
}
if (isBrowsable)
{
var prop = this.CreatePropertyItem(descriptor, propertyDef);
if (prop != null)
{
propertyItems.Add(prop);
}
}
}
}
catch (Exception e)
{
//TODO: handle this some how
Debug.WriteLine("Property creation failed.");
Debug.WriteLine(e.StackTrace);
}
}
updatePropertyItemsCallback.Invoke(propertyItems);
}
private T GetAttribute <T>() where T : Attribute
{
return(PropertyGridUtilities.GetAttribute <T>(PropertyDescriptor));
}
internal override ITypeEditor CreateDefaultEditor(PropertyItem propertyItem)
{
return(PropertyGridUtilities.CreateDefaultEditor(PropertyDescriptor.PropertyType, PropertyDescriptor.Converter, propertyItem));
}
private string GetDefaultPropertyName(object selectedObject)
{
return(PropertyGridUtilities.GetDefaultPropertyName(selectedObject));
}
protected override ITypeEditor CreateDefaultEditor()
{
return(PropertyGridUtilities.CreateDefaultEditor(PropertyDescriptor.PropertyType, PropertyDescriptor.Converter));
}
