diff --git a/Import/GacUI.h b/Import/GacUI.h
index a2ade74a..97880c1f 100644
--- a/Import/GacUI.h
+++ b/Import/GacUI.h
@@ -2442,6 +2442,16 @@ Native Window Services
 			virtual bool							ShowFileDialog(INativeWindow* window, collections::List<WString>& selectionFileNames, vint& selectionFilterIndex, FileDialogTypes dialogType, const WString& title, const WString& initialFileName, const WString& initialDirectory, const WString& defaultExtension, const WString& filter, FileDialogOptions options)=0;
 		};
 
+		inline INativeDialogService::FileDialogOptions operator|(INativeDialogService::FileDialogOptions a, INativeDialogService::FileDialogOptions b)
+		{
+			return static_cast<INativeDialogService::FileDialogOptions>(static_cast<vuint64_t>(a) | static_cast<vuint64_t>(b));
+		}
+
+		inline INativeDialogService::FileDialogOptions operator&(INativeDialogService::FileDialogOptions a, INativeDialogService::FileDialogOptions b)
+		{
+			return static_cast<INativeDialogService::FileDialogOptions>(static_cast<vuint64_t>(a) & static_cast<vuint64_t>(b));
+		}
+
 /***********************************************************************
 Native Window Controller
 ***********************************************************************/
diff --git a/Import/GacUICompiler.h b/Import/GacUICompiler.h
index 6f447a84..7ffc2888 100644
--- a/Import/GacUICompiler.h
+++ b/Import/GacUICompiler.h
@@ -1077,6 +1077,17 @@ GuiVrtualTypeInstanceLoader
 							}
 						}
 
+						if (!stopControlTemplateTd)
+						{
+							auto value = MakePtr<WfStringExpression>();
+							value->value.value = L"Cannot find a matched control template to create.";
+
+							auto raiseStat = MakePtr<WfRaiseExceptionStatement>();
+							raiseStat->expression = value;
+
+							block->statements.Add(raiseStat);
+						}
+
 						auto member = MakePtr<WfClassMember>();
 						member->kind = WfClassMemberKind::Override;
 						member->declaration = funcCreateTemplate;
diff --git a/Import/VlppWorkflowCompiler.cpp b/Import/VlppWorkflowCompiler.cpp
index ab7c8eab..f3f6d460 100644
--- a/Import/VlppWorkflowCompiler.cpp
+++ b/Import/VlppWorkflowCompiler.cpp
@@ -14743,18 +14743,18 @@ WfCppConfig
 				case ITypeInfo::RawPtr:
 					return ConvertType(typeInfo->GetElementType()) + L"*";
 				case ITypeInfo::SharedPtr:
-					if (typeInfo->GetTypeDescriptor() == description::GetTypeDescriptor<IValueFunctionProxy>())
+					if (typeInfo->GetElementType()->GetDecorator() == ITypeInfo::Generic)
 					{
-						return ConvertType(typeInfo->GetElementType());
-					}
-					else if (typeInfo->GetTypeDescriptor() == description::GetTypeDescriptor<IValueEnumerable>())
-					{
-						return ConvertType(typeInfo->GetElementType());
-					}
-					else
-					{
-						return L"::vl::Ptr<" + ConvertType(typeInfo->GetElementType()) + L">";
+						if (typeInfo->GetTypeDescriptor() == description::GetTypeDescriptor<IValueFunctionProxy>())
+						{
+							return ConvertType(typeInfo->GetElementType());
+						}
+						else if (typeInfo->GetTypeDescriptor() == description::GetTypeDescriptor<IValueEnumerable>())
+						{
+							return ConvertType(typeInfo->GetElementType());
+						}
 					}
+					return L"::vl::Ptr<" + ConvertType(typeInfo->GetElementType()) + L">";
 				case ITypeInfo::Nullable:
 					return L"::vl::Nullable<" + ConvertType(typeInfo->GetElementType()) + L">";
 				case ITypeInfo::Generic:
@@ -16279,7 +16279,7 @@ WfGenerateExpressionVisitor
 						{
 							auto fromType = types[0];
 							auto toType = types[1];
-							ConvertType(config, writer, fromType, toType, writeExpression, true);
+							ConvertType(config, writer, fromType, toType, writeExpression, false);
 						});
 					}
 					else
@@ -17632,24 +17632,16 @@ WfGenerateExpressionVisitor
 
 				void Visit(WfInferExpression* node)override
 				{
-					auto scope = config->manager->nodeScopes[node].Obj();
-					auto typeInfo = CreateTypeInfoFromType(scope, node->type);
-					Call(node->expression, typeInfo.Obj());
+					Call(node->expression);
 				}
 
 				void Visit(WfTypeCastingExpression* node)override
 				{
 					auto scope = config->manager->nodeScopes[node].Obj();
 					auto typeInfo = CreateTypeInfoFromType(scope, node->type);
-					if (node->strategy == WfTypeCastingStrategy::Strong)
-					{
-						Call(node->expression, typeInfo.Obj());
-					}
-					else
-					{
-						auto result = config->manager->expressionResolvings[node->expression.Obj()];
-						ConvertType(config, writer, result.type.Obj(), typeInfo.Obj(), [&]() {Call(node->expression); }, false);
-					}
+					bool strongCast = node->strategy == WfTypeCastingStrategy::Strong;
+					auto result = config->manager->expressionResolvings[node->expression.Obj()];
+					ConvertType(config, writer, result.type.Obj(), typeInfo.Obj(), [&]() {Call(node->expression); }, strongCast);
 				}
 
 				void Visit(WfTypeTestingExpression* node)override