System.Data.XSDSchema.FindDatasetElement C# (CSharp) Method

        private XmlSchemaElement FindDatasetElement(XmlSchemaObjectCollection elements)
        {
            foreach (XmlSchemaElement XmlElement in elements)
            {
                if (GetBooleanAttribute(XmlElement, Keywords.MSD_ISDATASET,  /*default:*/ false))
                    return XmlElement;
            }
            if ((elements.Count == 1) || (FromInference && elements.Count > 0))
            { //let's see if this element looks like a DataSet
                XmlSchemaElement node = (XmlSchemaElement)elements[0];
                if (!GetBooleanAttribute(node, Keywords.MSD_ISDATASET,  /*default:*/ true))
                    return null;

                XmlSchemaComplexType ct = node.SchemaType as XmlSchemaComplexType;
                if (ct == null)
                    return null;

                while (ct != null)
                {
                    if (HasAttributes(ct.Attributes))
                        return null;

                    if (ct.ContentModel is XmlSchemaSimpleContent)
                    {
                        XmlSchemaAnnotated cContent = ((XmlSchemaSimpleContent)(ct.ContentModel)).Content;
                        if (cContent is XmlSchemaSimpleContentExtension)
                        {
                            XmlSchemaSimpleContentExtension ccExtension = ((XmlSchemaSimpleContentExtension)cContent);
                            if (HasAttributes(ccExtension.Attributes))
                                return null;
                        }
                        else
                        {
                            XmlSchemaSimpleContentRestriction ccRestriction = ((XmlSchemaSimpleContentRestriction)cContent);
                            if (HasAttributes(ccRestriction.Attributes))
                                return null;
                        }
                    }


                    XmlSchemaParticle particle = GetParticle(ct);
                    if (particle != null)
                    {
                        if (!IsDatasetParticle(particle))
                            return null; // it's a table
                    }

                    if (ct.BaseXmlSchemaType is XmlSchemaComplexType)
                        ct = (XmlSchemaComplexType)ct.BaseXmlSchemaType;
                    else
                        break;
                }


                //if we are here there all elements are tables
                return node;
            }
            return null;
        }