private void GetActualTypeConverterAndContext(ITypeDescriptorContext currentContext, out TypeConverter realTypeConverter, out ITypeDescriptorContext realContext)
{
realContext = currentContext;
realTypeConverter = null;
if ((currentContext != null) && (currentContext.PropertyDescriptor != null))
{
realTypeConverter = TypeDescriptor.GetConverter(currentContext.PropertyDescriptor.PropertyType);
ActivityBindPropertyDescriptor propertyDescriptor = currentContext.PropertyDescriptor as ActivityBindPropertyDescriptor;
if (((propertyDescriptor != null) && (propertyDescriptor.RealPropertyDescriptor != null)) && ((propertyDescriptor.RealPropertyDescriptor.Converter != null) && (propertyDescriptor.RealPropertyDescriptor.Converter.GetType() != typeof(ActivityBindTypeConverter))))
{
realTypeConverter = propertyDescriptor.RealPropertyDescriptor.Converter;
realContext = new TypeDescriptorContext(currentContext, propertyDescriptor.RealPropertyDescriptor, currentContext.Instance);
}
}
}
private void GetActualTypeConverterAndContext(ITypeDescriptorContext currentContext, out TypeConverter realTypeConverter, out ITypeDescriptorContext realContext)
{
//The following case covers the scenario where we have users writting custom property descriptors in which they have returned custom type converters
//In such cases we should honor the type converter returned by property descriptor only if it is not a ActivityBindTypeConverter
//If it is ActivityBindTypeConveter then we should lookup the converter based on Property type
//Please be care ful when you change this code as it will break ParameterInfoBasedPropertyDescriptor
realContext = currentContext;
realTypeConverter = null;
if (currentContext != null && currentContext.PropertyDescriptor != null)
{
realTypeConverter = TypeDescriptor.GetConverter(currentContext.PropertyDescriptor.PropertyType);
ActivityBindPropertyDescriptor activityBindPropertyDescriptor = currentContext.PropertyDescriptor as ActivityBindPropertyDescriptor;
if (activityBindPropertyDescriptor != null &&
activityBindPropertyDescriptor.RealPropertyDescriptor != null &&
activityBindPropertyDescriptor.RealPropertyDescriptor.Converter != null &&
activityBindPropertyDescriptor.RealPropertyDescriptor.Converter.GetType() != typeof(ActivityBindTypeConverter))
{
realTypeConverter = activityBindPropertyDescriptor.RealPropertyDescriptor.Converter;
realContext = new TypeDescriptorContext(currentContext, activityBindPropertyDescriptor.RealPropertyDescriptor, currentContext.Instance);
}
}
}
private TypeConverter GetTypeConversionInfoForPropertySegment(WorkflowMarkupSerializationManager serializationManager, Type propertyType, out ITypeDescriptorContext context)
{
TypeConverter converter = null;
context = null;
PropertySegmentPropertyInfo propertyInfo = serializationManager.Context[typeof(PropertySegmentPropertyInfo)] as PropertySegmentPropertyInfo;
if (propertyInfo.PropertySegment != null)
{
if (propertyInfo.PropertySegment.PropertyDescriptor != null)
{
context = new TypeDescriptorContext(propertyInfo.PropertySegment.ServiceProvider, propertyInfo.PropertySegment.PropertyDescriptor, propertyInfo.PropertySegment.Object);
converter = propertyInfo.PropertySegment.PropertyDescriptor.Converter;
}
else if (propertyInfo.PropertySegment.Object != null)
{
PropertyDescriptor propertyDescriptor = TypeDescriptor.GetProperties(propertyInfo.PropertySegment.Object)[propertyInfo.Name];
if (propertyDescriptor != null)
{
context = new TypeDescriptorContext(propertyInfo.PropertySegment.ServiceProvider, propertyDescriptor, propertyInfo.PropertySegment.Object);
converter = propertyDescriptor.Converter;
}
}
}
if (propertyType != null && converter == null)
{
converter = TypeDescriptor.GetConverter(propertyType);
}
return converter;
}
private void GetActualTypeConverterAndContext(ITypeDescriptorContext currentContext, out TypeConverter realTypeConverter, out ITypeDescriptorContext realContext)
{
//The following case covers the scenario where we have users writting custom property descriptors in which they have returned custom type converters
//In such cases we should honor the type converter returned by property descriptor only if it is not a ActivityBindTypeConverter
//If it is ActivityBindTypeConveter then we should lookup the converter based on Property type
//Please be care ful when you change this code as it will break ParameterInfoBasedPropertyDescriptor
realContext = currentContext;
realTypeConverter = null;
if (currentContext != null && currentContext.PropertyDescriptor != null)
{
realTypeConverter = TypeDescriptor.GetConverter(currentContext.PropertyDescriptor.PropertyType);
ActivityBindPropertyDescriptor activityBindPropertyDescriptor = currentContext.PropertyDescriptor as ActivityBindPropertyDescriptor;
if (activityBindPropertyDescriptor != null &&
activityBindPropertyDescriptor.RealPropertyDescriptor != null &&
activityBindPropertyDescriptor.RealPropertyDescriptor.Converter != null &&
activityBindPropertyDescriptor.RealPropertyDescriptor.Converter.GetType() != typeof(ActivityBindTypeConverter))
{
realTypeConverter = activityBindPropertyDescriptor.RealPropertyDescriptor.Converter;
realContext = new TypeDescriptorContext(currentContext, activityBindPropertyDescriptor.RealPropertyDescriptor, currentContext.Instance);
}
}
}
private void GetActualTypeConverterAndContext(ITypeDescriptorContext currentContext, out TypeConverter realTypeConverter, out ITypeDescriptorContext realContext)
{
realContext = currentContext;
realTypeConverter = null;
if ((currentContext != null) && (currentContext.PropertyDescriptor != null))
{
realTypeConverter = TypeDescriptor.GetConverter(currentContext.PropertyDescriptor.PropertyType);
ActivityBindPropertyDescriptor propertyDescriptor = currentContext.PropertyDescriptor as ActivityBindPropertyDescriptor;
if (((propertyDescriptor != null) && (propertyDescriptor.RealPropertyDescriptor != null)) && ((propertyDescriptor.RealPropertyDescriptor.Converter != null) && (propertyDescriptor.RealPropertyDescriptor.Converter.GetType() != typeof(ActivityBindTypeConverter))))
{
realTypeConverter = propertyDescriptor.RealPropertyDescriptor.Converter;
realContext = new TypeDescriptorContext(currentContext, propertyDescriptor.RealPropertyDescriptor, currentContext.Instance);
}
}
}
internal static void MakePropertiesReadOnly(IServiceProvider serviceProvider, object topComponent)
{
Hashtable visitedComponents = new Hashtable();
Queue nestedComponents = new Queue();
nestedComponents.Enqueue(topComponent);
while (nestedComponents.Count > 0)
{
object component = nestedComponents.Dequeue();
if (visitedComponents[component.GetHashCode()] == null)
{
visitedComponents[component.GetHashCode()] = component;
//add custom readonly type descriptor to the component (to set ForceReadonly flag in the property grid)
TypeDescriptor.AddProvider(new ReadonlyTypeDescriptonProvider(TypeDescriptor.GetProvider(component)), component);
//now go through all the properties and add custom readonly type descriptor to all composite ones
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(component, new Attribute[] { BrowsableAttribute.Yes });
foreach (PropertyDescriptor property in properties)
{
if (!property.PropertyType.IsPrimitive)
{
object component1 = property.GetValue(component);
if (component1 != null)
{
TypeConverter converter = TypeDescriptor.GetConverter(component1);
TypeDescriptorContext context = new TypeDescriptorContext(serviceProvider, property, component);
if (converter.GetPropertiesSupported(context))
{
TypeDescriptor.AddProvider(new ReadonlyTypeDescriptonProvider(TypeDescriptor.GetProvider(component1)), component1);
nestedComponents.Enqueue(component1);
}
}
}
}
}
}
}
