string Write30_XmlSchemaUse(XmlSchemaUse v) {
string s = null;
switch (v) {
case XmlSchemaUse.@Optional:s = @"optional"; break;
case XmlSchemaUse.@Prohibited:s = @"prohibited"; break;
case XmlSchemaUse.@Required:s = @"required"; break;
default: break;
}
return s;
}