serialization

问题 I have the following model inside an entity framework: public class Customer { [XmlIgnore] public virtual ICollection<Customer> Children { get; set; } public string Name { get; set; } } Now I try to serialize this using web api: public class CustomerController:ApiController { public HttpResponseMessage GetAll() { using (var tc = new DataContext()) { List<Customer> allCustomers = tc.Customers.ToList(); return Request.CreateResponse(HttpStatusCode.OK, allCustomers); } } } When I do this and

问题 Given the following HTML form: <form id="myform"> Company: <input type="text" name="Company" value="ACME, INC."/> First Name: <input type="text" name="Contact.FirstName" value="Daffy"/> Last Name: <input type="text" name="Contact.LastName" value="Duck"/> </form> What is the best way serialize this form in javascript to a JSON object in the format: { Company:"ACME, INC.", Contact:{FirstName:"Daffy", LastName:"Duck"} } Also note that there might be more than 1 "." sign in the field name. 回答1: I

问题 Consider the three following classes: EntityTransformer contains a map associating an Entity with a String Entity is an object containing an ID (used by equals / hashcode), and which contains a reference to an EntityTransformer (note the circular dependency) SomeWrapper contains an EntityTransformer , and maintains a Map associating Entity 's identifiers and the corresponding Entity object. The following code will create an EntityTransformer and a Wrapper, add two entities to the Wrapper,

问题 I'm successfully printing my response as String from my YouTube JSON url, but when I try to serialize through the "items" I get the following error Unhandled exception: type 'List' is not a subtype of type 'Map' of 'json' where List is from dart:core Map is from dart:core Here is my code... class CardInfo { //Constructor String id; String description; String role; //int score; CardInfo.fromJson(Map json) { this.id = json['vieoId']; this.description = json['description']; this.role = json[

问题 I have a custom object called Occasion defined as follows: #import <Foundation/Foundation.h> @interface Occasion : NSObject { NSString *_title; NSDate *_date; NSString *_imagePath; } @property (nonatomic, retain) NSString *title; @property (nonatomic, retain) NSDate *date; @property (nonatomic, retain) NSString *imagePath; Now I have an NSMutableArray of Occasions which I want to save to NSUserDefaults. I know it's not possible in a straight forward fashion so I'm wondering which is the

问题 I'm trying to save a hash of options in a single DB field. The form is able to save the data to the DB but not able to retrieve it again when I go to edit it (e.g. all the other fields are prepopulated except for the wp_options fields). class Profile < ActiveRecord::Base serialize :wp_options end This is my custom class: class WP_Options attr_accessor :wp_name, :wp_desc, :wp_limit end In my form: <%= form_for(@profile, :remote => true) do |f| %> ... <%= f.fields_for :wp_options do |wp_options

问题 Some context can be found here, the idea is that I have created a graph from tuples collected from a request on a Hive table. Those correspond to trade relations between countries. Having built the graph this way, the vertices are not labelled. I want to study the distribution of degrees and get the most connected countries' names. I tried 2 options : First : I tried to map the index of the vertices with the string names of the vertices with the function idMapbis inside the function which is

问题 Some context can be found here, the idea is that I have created a graph from tuples collected from a request on a Hive table. Those correspond to trade relations between countries. Having built the graph this way, the vertices are not labelled. I want to study the distribution of degrees and get the most connected countries' names. I tried 2 options : First : I tried to map the index of the vertices with the string names of the vertices with the function idMapbis inside the function which is

问题 Say I have two traits that I would like to mixin to a class. The traits each implement an abstract method that the class needs. trait Writable { def serialize(out: java.io.DataOutput) } trait T1 extends Writable trait A extends T1 { val aNum: Int abstract override def serialize(out: java.io.DataOutput) = { super.serialize(out) println("A serialize") out.writeInt(aNum) } def action = println("A action") } trait B extends T1 { val bNum: Int abstract override def serialize(out: java.io

问题 just as the topic suggests I've come across a slight issue with boost::serialization when serializing a huge amount of data to a file. The problem consists of the memory footprint of the serialization part of the application taking around 3 to 3.5 times the memory of my objects being serialized. It is important to note that the data structure I have is a three dimensional vector of base class pointers and a pointer to that structure. Like this: using namespace std; vector<vector<vector<MyBase