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);
}
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));
}
