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

        private void AttributeIdentityConstraints(string name, string ns, object obj, string sobj, SchemaAttDef attdef) {
            for (int ci = this.startIDConstraint; ci < this.validationStack.Length; ci ++) {
                // no constraint for this level
                if (((ValidationState)(this.validationStack[ci])).Constr == null) {
                    continue;
                }

                // else
                foreach (ConstraintStruct conuct in ((ValidationState)(this.validationStack[ci])).Constr) {
                    // axisFields is not null, but may be empty
                    foreach (LocatedActiveAxis laxis in conuct.axisFields) {
                        // check field from here
                        if (laxis.MoveToAttribute(name, ns)) {
                            Debug.WriteLine("Attribute Field Match!");
                            //attribute is only simpletype, so needn't checking...
                            // can fill value here, yeah!!
                            Debug.WriteLine("Attribute Field Filling Value!");
                            Debug.WriteLine("Name: " + name + "\t|\tURI: " + ns + "\t|\tValue: " + obj + "\n");
                            if (laxis.Ks[laxis.Column] != null) {
                                // should be evaluated to either an empty node-set or a node-set with exactly one member
                                // two matches...
                                SendValidationEvent (Res.Sch_FieldSingleValueExpected, name);
                            }
                            else if ((attdef != null) && (attdef.Datatype != null)){
                                laxis.Ks[laxis.Column] = new TypedObject (obj, sobj, attdef.Datatype);
                            }
                        }
                    }
                }
            }
        }