async Task Init ()
		{
			if (schemaCompletionData != null)
				return;
			
			XmlTextReader reader = ResourceManager.GetXsdSchema();
			schemaCompletionData = new XmlSchemaCompletionData(reader);
			
			// Set up choice element's path.
			choicePath = new XmlElementPath();
			choicePath.Elements.Add(new QualifiedName("schema", namespaceURI, prefix));
			choicePath.Elements.Add(new QualifiedName("element", namespaceURI, prefix));
			choicePath.Elements.Add(new QualifiedName("complexType", namespaceURI, prefix));
			
			mixedAttributeValues = await schemaCompletionData.GetAttributeValueCompletionData(choicePath, "mixed", CancellationToken.None);

			choicePath.Elements.Add(new QualifiedName("choice", namespaceURI, prefix));
			
			// Get choice element info.
			choiceAttributes = await schemaCompletionData.GetAttributeCompletionData(choicePath, CancellationToken.None);
			maxOccursAttributeValues = await schemaCompletionData.GetAttributeValueCompletionData(choicePath, "maxOccurs", CancellationToken.None);
			
			// Set up element path.
			elementPath = new XmlElementPath();
			elementPath.Elements.Add(new QualifiedName("schema", namespaceURI, prefix));

			elementFormDefaultAttributeValues = await schemaCompletionData.GetAttributeValueCompletionData (elementPath, "elementFormDefault", CancellationToken.None);
			blockDefaultAttributeValues = await schemaCompletionData.GetAttributeValueCompletionData(elementPath, "blockDefault", CancellationToken.None);
			finalDefaultAttributeValues = await schemaCompletionData.GetAttributeValueCompletionData(elementPath, "finalDefault", CancellationToken.None);
			
			elementPath.Elements.Add(new QualifiedName("element", namespaceURI, prefix));
				
			// Get element attribute info.
			elementAttributes = await schemaCompletionData.GetAttributeCompletionData(elementPath, CancellationToken.None);

			// Set up simple enum type path.
			simpleEnumPath = new XmlElementPath();
			simpleEnumPath.Elements.Add(new QualifiedName("schema", namespaceURI, prefix));
			simpleEnumPath.Elements.Add(new QualifiedName("simpleType", namespaceURI, prefix));
			simpleEnumPath.Elements.Add(new QualifiedName("restriction", namespaceURI, prefix));
			
			// Get child elements.
			simpleEnumElements = await schemaCompletionData.GetChildElementCompletionData(simpleEnumPath, CancellationToken.None);

			// Set up enum path.
			enumPath = new XmlElementPath();
			enumPath.Elements.Add(new QualifiedName("schema", namespaceURI, prefix));
			enumPath.Elements.Add(new QualifiedName("simpleType", namespaceURI, prefix));
			enumPath.Elements.Add(new QualifiedName("restriction", namespaceURI, prefix));
			enumPath.Elements.Add(new QualifiedName("enumeration", namespaceURI, prefix));
			
			// Get attributes.
			enumAttributes = await schemaCompletionData.GetAttributeCompletionData(enumPath, CancellationToken.None);
			
			// Set up xs:all path.
			allElementPath = new XmlElementPath();
			allElementPath.Elements.Add(new QualifiedName("schema", namespaceURI, prefix));
			allElementPath.Elements.Add(new QualifiedName("element", namespaceURI, prefix));
			allElementPath.Elements.Add(new QualifiedName("complexType", namespaceURI, prefix));
			allElementPath.Elements.Add(new QualifiedName("all", namespaceURI, prefix));
		
			// Get child elements of the xs:all element.
			allElementChildElements = await schemaCompletionData.GetChildElementCompletionData(allElementPath, CancellationToken.None);
			
			// Set up the path to the annotation element that is a child of xs:all.
			allElementAnnotationPath = new XmlElementPath();
			allElementAnnotationPath.Elements.Add(new QualifiedName("schema", namespaceURI, prefix));
			allElementAnnotationPath.Elements.Add(new QualifiedName("element", namespaceURI, prefix));
			allElementAnnotationPath.Elements.Add(new QualifiedName("complexType", namespaceURI, prefix));
			allElementAnnotationPath.Elements.Add(new QualifiedName("all", namespaceURI, prefix));
			allElementAnnotationPath.Elements.Add(new QualifiedName("annotation", namespaceURI, prefix));
			
			// Get the xs:all annotation child element.
			allElementAnnotationChildElements = await schemaCompletionData.GetChildElementCompletionData(allElementAnnotationPath, CancellationToken.None);
		}