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

        internal XmlSchemaParticle GetParticle(XmlSchemaComplexType ct)
        {
            if (ct.ContentModel != null)
            {
                if (ct.ContentModel is XmlSchemaComplexContent)
                {
                    XmlSchemaAnnotated cContent = ((XmlSchemaComplexContent)(ct.ContentModel)).Content;
                    if (cContent is XmlSchemaComplexContentExtension)
                    {
                        return ((XmlSchemaComplexContentExtension)cContent).Particle;
                    }
                    else
                    {
                        Debug.Assert(cContent is XmlSchemaComplexContentRestriction, "Expected complexContent extension or restriction");
                        return ((XmlSchemaComplexContentRestriction)cContent).Particle;
                    }
                }
                else
                {
                    Debug.Assert(ct.ContentModel is XmlSchemaSimpleContent, "expected simpleContent or complexContent");
                    return null;
                }
            }
            else
            {
                return ct.Particle;
            }
        }