public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType != typeof(string))
{
return(base.ConvertTo(context, culture, value, destinationType));
}
string convertedValue = null;
ActivityBind activityBind = value as ActivityBind;
if (activityBind != null)
{
Activity activity = PropertyDescriptorUtils.GetComponent(context) as Activity;
activity = (activity != null) ? Helpers.ParseActivityForBind(activity, activityBind.Name) : null;
convertedValue = String.Format(CultureInfo.InvariantCulture, ("Activity={0}, Path={1}"), (activity != null) ? activity.QualifiedName : activityBind.Name, activityBind.Path);
}
else
{
ITypeDescriptorContext actualContext = null; TypeConverter actualConverter = null;
GetActualTypeConverterAndContext(context, out actualConverter, out actualContext);
if (actualConverter != null && actualConverter.GetType() != typeof(ActivityBindTypeConverter) && actualConverter.CanConvertTo(actualContext, destinationType))
{
convertedValue = actualConverter.ConvertTo(actualContext, culture, value, destinationType) as string;
}
else
{
convertedValue = base.ConvertTo(context, culture, value, destinationType) as string;
}
}
return(convertedValue);
}
public override object GetValue(object component)
{
object obj2 = base.GetValue(component);
string str = obj2 as string;
if (!string.IsNullOrEmpty(str))
{
Activity context = PropertyDescriptorUtils.GetComponent(this.context) as Activity;
context = (context != null) ? Helpers.ParseActivityForBind(context, str) : null;
obj2 = (context != null) ? context.QualifiedName : str;
}
return(obj2);
}
public override object GetValue(object component)
{
object value = base.GetValue(component);
string id = value as string;
if (!String.IsNullOrEmpty(id))
{
Activity activity = PropertyDescriptorUtils.GetComponent(this.context) as Activity;
activity = (activity != null) ? Helpers.ParseActivityForBind(activity, id) : null;
value = (activity != null) ? activity.QualifiedName : id;
}
return(value);
}
public override void SetValue(object component, object value)
{
string str = value as string;
if (string.IsNullOrEmpty(str))
{
throw new InvalidOperationException(SR.GetString("Error_ActivityIdentifierCanNotBeEmpty"));
}
Activity context = PropertyDescriptorUtils.GetComponent(this.context) as Activity;
if ((context != null) && (Helpers.ParseActivityForBind(context, str) == null))
{
throw new InvalidOperationException(SR.GetString("Error_InvalidActivityIdentifier", new object[] { str }));
}
base.SetValue(component, value);
}
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes)
{
PropertyDescriptorCollection descriptors = new PropertyDescriptorCollection(new PropertyDescriptor[0]);
TypeConverter converter = TypeDescriptor.GetConverter(value.GetType());
if (((converter != null) && (converter.GetType() != base.GetType())) && converter.GetPropertiesSupported())
{
return(converter.GetProperties(context, value, attributes));
}
IComponent component = PropertyDescriptorUtils.GetComponent(context);
if (component != null)
{
descriptors = PropertyDescriptorFilter.FilterProperties(component.Site, value, TypeDescriptor.GetProperties(value, new Attribute[] { BrowsableAttribute.Yes }));
}
return(descriptors);
}
public override void SetValue(object component, object value)
{
if (component == null)
{
throw new ArgumentNullException("component");
}
if (value != null)
{
Type type = value as Type;
ITypeFilterProvider provider = PropertyDescriptorUtils.GetComponent(new TypeDescriptorContext(base.ServiceProvider, base.RealPropertyDescriptor, component)) as ITypeFilterProvider;
if (provider != null)
{
provider.CanFilterType(type, true);
}
}
base.SetValue(component, value);
}
public override void SetValue(object component, object value)
{
if (component == null)
{
throw new ArgumentNullException("component");
}
if (value != null)
{
Type type = value as Type;
ITypeFilterProvider filterProvider = PropertyDescriptorUtils.GetComponent(new TypeDescriptorContext(ServiceProvider, RealPropertyDescriptor, component)) as ITypeFilterProvider;
if (filterProvider != null)
{
filterProvider.CanFilterType(type, true); //this will throw an exception if the type is not correctly filterable
}
}
base.SetValue(component, value);
}
public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes)
{
PropertyDescriptorCollection props = new PropertyDescriptorCollection(new PropertyDescriptor[] { });
TypeConverter typeConverter = TypeDescriptor.GetConverter(value.GetType());
if (typeConverter != null && typeConverter.GetType() != GetType() && typeConverter.GetPropertiesSupported())
{
return(typeConverter.GetProperties(context, value, attributes));
}
else
{
IComponent component = PropertyDescriptorUtils.GetComponent(context);
if (component != null)
{
props = PropertyDescriptorFilter.FilterProperties(component.Site, value, TypeDescriptor.GetProperties(value, new Attribute[] { BrowsableAttribute.Yes }));
}
}
return(props);
}
public override void SetValue(object component, object value)
{
string id = value as string;
if (String.IsNullOrEmpty(id))
{
throw new InvalidOperationException(SR.GetString(SR.Error_ActivityIdentifierCanNotBeEmpty));
}
Activity activity = PropertyDescriptorUtils.GetComponent(this.context) as Activity;
if (activity != null)
{
if (Helpers.ParseActivityForBind(activity, id) == null)
{
throw new InvalidOperationException(SR.GetString(SR.Error_InvalidActivityIdentifier, id));
}
}
base.SetValue(component, value);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType != typeof(string))
{
return(base.ConvertTo(context, culture, value, destinationType));
}
ActivityBind bind = value as ActivityBind;
if (bind != null)
{
Activity component = PropertyDescriptorUtils.GetComponent(context) as Activity;
component = (component != null) ? Helpers.ParseActivityForBind(component, bind.Name) : null;
return(string.Format(CultureInfo.InvariantCulture, "Activity={0}, Path={1}", new object[] { (component != null) ? component.QualifiedName : bind.Name, bind.Path }));
}
ITypeDescriptorContext realContext = null;
TypeConverter realTypeConverter = null;
this.GetActualTypeConverterAndContext(context, out realTypeConverter, out realContext);
if (((realTypeConverter != null) && (realTypeConverter.GetType() != typeof(ActivityBindTypeConverter))) && realTypeConverter.CanConvertTo(realContext, destinationType))
{
return(realTypeConverter.ConvertTo(realContext, culture, value, destinationType) as string);
}
return(base.ConvertTo(context, culture, value, destinationType) as string);
}
internal static bool CreateField(ITypeDescriptorContext context, ActivityBind activityBind, bool throwOnError)
{
if (!string.IsNullOrEmpty(activityBind.Path))
{
Type toType = PropertyDescriptorUtils.GetBaseType(context.PropertyDescriptor, context.Instance, context);
Activity component = PropertyDescriptorUtils.GetComponent(context) as Activity;
if ((component != null) && (toType != null))
{
component = Helpers.ParseActivityForBind(component, activityBind.Name);
if (component == Helpers.GetRootActivity(component))
{
bool ignoreCase = CompilerHelpers.GetSupportedLanguage(context) == SupportedLanguages.VB;
Type dataSourceClass = Helpers.GetDataSourceClass(component, context);
if (dataSourceClass != null)
{
string path = activityBind.Path;
int length = path.IndexOfAny(new char[] { '.', '/', '[' });
if (length != -1)
{
path = path.Substring(0, length);
}
MemberInfo info = FindMatchingMember(path, dataSourceClass, ignoreCase);
if (info != null)
{
Type fromType = null;
bool isPrivate = false;
if (info is FieldInfo)
{
isPrivate = ((FieldInfo) info).IsPrivate;
fromType = ((FieldInfo) info).FieldType;
}
else if (info is PropertyInfo)
{
MethodInfo getMethod = ((PropertyInfo) info).GetGetMethod();
MethodInfo setMethod = ((PropertyInfo) info).GetSetMethod();
isPrivate = ((getMethod != null) && getMethod.IsPrivate) || ((setMethod != null) && setMethod.IsPrivate);
}
else if (info is MethodInfo)
{
isPrivate = ((MethodInfo) info).IsPrivate;
}
if (length != -1)
{
PathWalker walker = new PathWalker();
PathMemberInfoEventArgs finalEventArgs = null;
walker.MemberFound = (EventHandler<PathMemberInfoEventArgs>) Delegate.Combine(walker.MemberFound, delegate (object sender, PathMemberInfoEventArgs eventArgs) {
finalEventArgs = eventArgs;
});
if (!walker.TryWalkPropertyPath(dataSourceClass, activityBind.Path))
{
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString("Error_MemberWithSameNameExists", new object[] { activityBind.Path, dataSourceClass.FullName }));
}
return false;
}
fromType = BindHelpers.GetMemberType(finalEventArgs.MemberInfo);
}
if (((info.DeclaringType == dataSourceClass) || !isPrivate) && ((info is FieldInfo) && TypeProvider.IsAssignable(toType, fromType)))
{
return true;
}
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString("Error_MemberWithSameNameExists", new object[] { activityBind.Path, dataSourceClass.FullName }));
}
return false;
}
Activity activity2 = null;
if (string.Compare(component.Name, path, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal) == 0)
{
activity2 = component;
}
else if ((component is CompositeActivity) && (component is CompositeActivity))
{
foreach (Activity activity3 in Helpers.GetAllNestedActivities(component as CompositeActivity))
{
if (string.Compare(activity3.Name, path, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal) == 0)
{
activity2 = activity3;
}
}
}
if (activity2 != null)
{
if (TypeProvider.IsAssignable(toType, activity2.GetType()))
{
return true;
}
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString("Error_MemberWithSameNameExists", new object[] { activityBind.Path, dataSourceClass.FullName }));
}
return false;
}
IMemberCreationService service = context.GetService(typeof(IMemberCreationService)) as IMemberCreationService;
if (service != null)
{
IDesignerHost host = context.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host != null)
{
service.CreateField(host.RootComponentClassName, activityBind.Path, toType, null, MemberAttributes.Public, null, false);
return true;
}
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(IDesignerHost).FullName }));
}
}
else if (throwOnError)
{
throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(IMemberCreationService).FullName }));
}
}
}
}
else
{
if ((component == null) && throwOnError)
{
throw new InvalidOperationException(SR.GetString("Error_InvalidActivityIdentifier", new object[] { activityBind.Name }));
}
if ((toType == null) && throwOnError)
{
throw new InvalidOperationException(SR.GetString("Error_PropertyTypeNotDefined", new object[] { context.PropertyDescriptor.Name, typeof(ActivityBind).Name, typeof(IDynamicPropertyTypeProvider).Name }));
}
}
}
return false;
}
internal static bool CreateField(ITypeDescriptorContext context, ActivityBind activityBind, bool throwOnError)
{
//Check if the activity is root activity and has valid design time type
if (!String.IsNullOrEmpty(activityBind.Path))
{
Type boundType = PropertyDescriptorUtils.GetBaseType(context.PropertyDescriptor, context.Instance, context);
Activity activity = PropertyDescriptorUtils.GetComponent(context) as Activity;
if (activity != null && boundType != null)
{
activity = Helpers.ParseActivityForBind(activity, activityBind.Name);
if (activity == Helpers.GetRootActivity(activity))
{
bool isVB = (CompilerHelpers.GetSupportedLanguage(context) == SupportedLanguages.VB);
Type designedType = Helpers.GetDataSourceClass(activity, context);
if (designedType != null)
{
//field path could be nested too.
//need to find field only with the name up to the first dot (CimplexTypeField in the example below)
//and the right type (that would be tricky if the field doesnt exist yet)
//example: CimplexTypeField.myIDictionary_int_string[10].someOtherGood2
string fieldName = activityBind.Path;
int indexOfDot = fieldName.IndexOfAny(new char[] { '.', '/', '[' });
if (indexOfDot != -1)
{
fieldName = fieldName.Substring(0, indexOfDot); //path is a nested field access
}
MemberInfo matchingMember = ActivityBindPropertyDescriptor.FindMatchingMember(fieldName, designedType, isVB);
if (matchingMember != null)
{
Type memberType = null;
bool isPrivate = false;
if (matchingMember is FieldInfo)
{
isPrivate = ((FieldInfo)matchingMember).IsPrivate;
memberType = ((FieldInfo)matchingMember).FieldType;
}
else if (matchingMember is PropertyInfo)
{
MethodInfo getMethod = ((PropertyInfo)matchingMember).GetGetMethod();
MethodInfo setMethod = ((PropertyInfo)matchingMember).GetSetMethod();
isPrivate = ((getMethod != null && getMethod.IsPrivate) || (setMethod != null && setMethod.IsPrivate));
}
else if (matchingMember is MethodInfo)
{
isPrivate = ((MethodInfo)matchingMember).IsPrivate;
}
if (indexOfDot != -1)
{ //need to find the type of the member the path references (and if the path is valid at all)
PathWalker pathWalker = new PathWalker();
PathMemberInfoEventArgs finalEventArgs = null;
pathWalker.MemberFound += delegate(object sender, PathMemberInfoEventArgs eventArgs)
{ finalEventArgs = eventArgs; };
if (pathWalker.TryWalkPropertyPath(designedType, activityBind.Path))
{
//successfully walked the entire path
memberType = BindHelpers.GetMemberType(finalEventArgs.MemberInfo);
}
else
{
//the path is invalid
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString(SR.Error_MemberWithSameNameExists, activityBind.Path, designedType.FullName));
}
return(false);
}
}
if ((matchingMember.DeclaringType == designedType || !isPrivate) &&
matchingMember is FieldInfo &&
TypeProvider.IsAssignable(boundType, memberType))
{
return(true);
}
else
{
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString(SR.Error_MemberWithSameNameExists, activityBind.Path, designedType.FullName));
}
return(false);
}
}
else
{
// Find out if the name conflicts with an existing activity that has not be flushed in to the
// code beside. An activity bind can bind to this field only if the type of the property
// is the assignable from the activity type.
Activity matchingActivity = null;
if (string.Compare(activity.Name, fieldName, isVB ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal) == 0)
{
matchingActivity = activity;
}
else if (activity is CompositeActivity)
{
if (activity is CompositeActivity)
{
foreach (Activity existingActivity in Helpers.GetAllNestedActivities(activity as CompositeActivity))
{
if (string.Compare(existingActivity.Name, fieldName, isVB ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal) == 0)
{
matchingActivity = existingActivity;
}
}
}
}
if (matchingActivity != null)
{
if (TypeProvider.IsAssignable(boundType, matchingActivity.GetType()))
{
return(true);
}
else
{
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString(SR.Error_MemberWithSameNameExists, activityBind.Path, designedType.FullName));
}
return(false);
}
}
}
IMemberCreationService memberCreationService = context.GetService(typeof(IMemberCreationService)) as IMemberCreationService;
if (memberCreationService == null)
{
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString(SR.General_MissingService, typeof(IMemberCreationService).FullName));
}
}
else
{
IDesignerHost designerHost = context.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (designerHost == null)
{
if (throwOnError)
{
throw new InvalidOperationException(SR.GetString("General_MissingService", typeof(IDesignerHost).FullName));
}
}
else
{
memberCreationService.CreateField(designerHost.RootComponentClassName, activityBind.Path, boundType, null, MemberAttributes.Public, null, false);
return(true);
}
}
}
}
}
else
{
if (activity == null && throwOnError)
{
throw new InvalidOperationException(SR.GetString(SR.Error_InvalidActivityIdentifier, activityBind.Name));
}
if (boundType == null && throwOnError)
{
throw new InvalidOperationException(SR.GetString(SR.Error_PropertyTypeNotDefined, context.PropertyDescriptor.Name, typeof(ActivityBind).Name, typeof(IDynamicPropertyTypeProvider).Name));
}
}
}
return(false);
}
