What is the correct way of using the Guid type in a XSD file?

Question

I have a .xsd file which I use to generate code with the xsd.exe tool from Visual Studio. Some class members are Guids and the xsd.exe tool gives 2 warnings:

Namespa

Answer 1

Citation from here:

   XmlSchema guidSchema = new XmlSchema();
   guidSchema.TargetNamespace = "http://microsoft.com/wsdl/types/";

   XmlSchemaSimpleTypeRestriction guidRestriction = new XmlSchemaSimpleTypeRestriction();
   guidRestriction.BaseTypeName = new XmlQualifiedName("string", XmlSchema.Namespace);

   XmlSchemaPatternFacet guidPattern = new XmlSchemaPatternFacet();
   guidPattern.Value = @"[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}";
   guidRestriction.Facets.Add(guidPattern);

   XmlSchemaSimpleType guidType = new XmlSchemaSimpleType();
   guidType.Name = "guid";
   guidType.Content = guidRestriction;
   guidSchema.Items.Add(guidType);

   schemaSet.Add(guidSchema);

   XmlSchema speakerSchema = new XmlSchema();
   speakerSchema.TargetNamespace = "http://www.microsoft.com/events/teched2005/";

   // ...

   XmlSchemaElement idElement = new XmlSchemaElement();
   idElement.Name = "ID";

   // Here's where the magic happens...

   idElement.SchemaTypeName = new XmlQualifiedName("guid", "http://microsoft.com/wsdl/types/");