System.Xml.Schema.XsdValidator.ElementIdentityConstraints C# (CSharp) Method

        private void ElementIdentityConstraints () {
            for (int i = this.startIDConstraint; i < this.validationStack.Length; i ++) {
                // no constraint for this level
                if (((ValidationState)(this.validationStack[i])).Constr == null) {
                    continue;
                }

                // else
                foreach (ConstraintStruct conuct in ((ValidationState)(this.validationStack[i])).Constr) {
                    // check selector from here
                    if (conuct.axisSelector.MoveToStartElement(reader.LocalName, reader.NamespaceURI)) {
                        // selector selects new node, activate a new set of fields
                        Debug.WriteLine("Selector Match!");
                        Debug.WriteLine("Name: " + reader.LocalName + "\t|\tURI: " + reader.NamespaceURI + "\n");
                        // in which axisFields got updated
                        conuct.axisSelector.PushKS(PositionInfo.LineNumber, PositionInfo.LinePosition);
                    }

                    // axisFields is not null, but may be empty
                    foreach (LocatedActiveAxis laxis in conuct.axisFields) {
                        // check field from here
                        if (laxis.MoveToStartElement(reader.LocalName, reader.NamespaceURI)) {
                            Debug.WriteLine("Element Field Match!");
                            // checking simpleType / simpleContent
                            if (context.ElementDecl != null) {      // nextElement can be null when xml/xsd are not valid
                                if (context.ElementDecl.Datatype == null) {
                                    SendValidationEvent(Res.Sch_FieldSimpleTypeExpected, reader.LocalName);
                                }
                                else {
                                    // can't fill value here, wait till later....
                                    // fill type : xsdType
                                    laxis.isMatched = true;
                                    // since it's simpletyped element, the endchildren will come consequently... don't worry
                                }
                            }
                        }
                    }

                }
            }
        }