My json response contains json with structure (eg. "[[[],[]]]") but no actual content.
AJAX code:
[Code]....
It definitely recognizes structure (if I change the xml nodes, it reflects in the []'s) but just isn't inserting any content. I tried prefixing the web method with "<ScriptMethod(ResponseFormat:=ResponseFormat.Json)>" but it made no difference.
I'm having a very hard time wrapping my head around this problem (it might be the heat from the summer finally arriving).
Problem:
I want the user to press a button client side which performs javascript data preparing and at last send a JSON structure to (currently a asmx webservice on) the server. The JSON structure is several levels deep.
Server side I create a PDF file which I want to send back to the user.
Goal:
The user feeling is that she presses a button and expects a PDF to return to her - either in a new window or as a download (preferrable).
Tools:
The system consists of (client side) HTML, JavaScript and ExtJS and (server side) ASP.NET.
Normally I would use an ashx handler to return a file to the client, but can I send a JSON structure to the handler and still be able to parse it correctly server side?
I am searching for the pattern to use.
I just hit the following issue: I am calling a web service that returns a serialized JSON object let's say: __type, FirstName, LastName (.net object Person with properties FirstName and LastName). __type's value is Test.Person
I have created a JS object using Type.registerNameSpace/registerClass called Demo.Person and it is registered on the page using the ScriptManager. Everything is working fine; I am able to get data from the server on the call back.
Is it possible to make the returned object from the web service be an instance of the declared JavaScript Demo.Person class? The idea would be to call a method like result.getFullName() on the client side without having to copy all the properties. This is just a simple scenario for more complex objects.
I use the JavaScriptSerializer class of ASP.net to serialize my object and return it to the client side. How can I deserialize the string using JavaScript?
View 4 RepliesI've scenario where I want to insert data into database without post back. there are around 12 to 13 fields which i need to insert. I'm passing DTO from the client side which is actually Json object. Now the problem which i'm facing is how to convert that Json object which i got in webservice to the "class" (in my case class name is User) object.
[Code]....
In the above case AddNewUser method takes the object of User class. But i'm getting casting error. So how do I convert Json object to the "User" class object?
How do it do this. I have this at the moment
[Code]....
[Code]....
This takes a large INT and returns 4 strings from the BO structure HotelFacilities
If I set the private from string to AccommodationBO.HotelFacilities it is fine
If I set the public from string to AccommodationBO.HotelFacilities it moans because the Set section of the private property is wrong. But the set would be an INt.
All I actually want to do, is populate the BO Structure and passit to the user control using a property in the user control code behind. Is this possible ??
Dim jim As New GetAccommodationPricesBLL
I want to send single json object with nested arrays through jquery ajax method.
In Code
In jquery ajax i am passing LeaveRuleMaster a single json object which holds some properties (Leavetypeid, Leavename, Leavestatus and nested array LeaveRulespecific.
In vb.net code i can receive the value of properties(Leavetypeid,Leavename,Leavestatus)
but i am receiving the LeaveRuleSpecific as nothing.
Based on the following link i tried this [URL] .....
Is there an easy way to populate my C# Object with the JSON object passed via AJAX?
//This is the JSON Object passed to C# WEBMETHOD from the page using JSON.stringify
{"user":{"name":"asdf","teamname":"b","email":"c","players":["1","2"]}}
//C# WebMetod That receives the JSON Object
[WebMethod]
public static void SaveTeam(Object user)
{
}
//C# Class that represents the object structure of JSON Object passed in to the WebMethod
public class User
{
public string name { get; set; }
public string teamname { get; set; }
public string email { get; set; }
public Array players { get; set; }
}
In MVC3 Beta version i have action result same like
public ActionResult Save(Dictionary<string, string> dicObject)
I want to pass JSON Object in POST Method from javascript and need to get as dictionary object
How can i do this? can you write example if possible?
I want to pass the Array ( object[]) or Structure data type value to the store procedure through
ibatis .net. I can do same by commandtext using SQLDBType.Structure. I am using Table value function in sql server 2008 and .Net 2010.
[URL]
Usage :
[code]...
The problem is it gives me following error :
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 21: {
Line 22: base.OnInit(e);
Line 23: _ContentTemplate.InstantiateIn(BodyControlSpace);
Line 24: }
Line 25:
I am calling an action from JQuery using $.getJSON() method.
This action returns a JsonResult object.
I am getting all the values correctly but not the Date Format.
Below is the Date format which i am getting.
/Date(1287587195000)/
/Date(1287587195000)/
But i want it like "10/15/2010 11:56 AM" this format.
How can i achieve it...
We are trying to consume WCF service which returns employee details in JSON Format.
like:
{"d":[{"_type":"Employee:#","BigThumbNailURI":null,"ID":1,"Name":"E1"},{"_type":"Employee:#","BigThumbNailURI":null,"ID":2,"Name":"E1"}]}
From VB.net code behind when I am trying to deserialize it it's stating that
"Expecting state 'Element'.. Encountered 'Text' with name '', namespace ''."
Deserialization code snippet:
Dim serializer = New DataContractJsonSerializer(GetType(List(Of Employee)))
Dim memoryStream = New MemoryStream()
Dim s = msg.Content.ReadAsString()
serializer.WriteObject(memoryStream, s)
memoryStream.Position = 0.......
If I have a string containing valid JSON
how can I convert to an obect in c#?
I want to serialize an object to json, so I'm using [Code]....
[Code]....
This is fine, but I want to return different json datasets depending on the circumstances. Lets say I have this object (a simplified example):
[DataContract]
class foo
{
[DataMember] int productId
[DataMember] string productName
double price; //not used in json.. yet
}
Which will serialize to a json object containing the product name & Id, but what if I also need to be able to return a different json object (say, productId and price but not name)? Can this be done somehow in the same object using WCF/DataContracts and DataMembers? This will be sent in an ajax query containing a collection of objects and needs to fast, so just including every member in every type of json request whether it's needed or not isn't a good solution.
I have an object called MyObject that has several properties. MyList is a list of MyObject that I populate with a linq query and then I serialize MyList into json. I end up with something like this
List<MyObject> MyList = new List<MyObject>();
MyList = TheLinqQuery(TheParam);
var TheJson = new System.Web.Script.Serialization.JavaScriptSerializer();
string MyJson = TheJson.Serialize(MyList);
What I want to do is serialize only parts of MyObject. For instance, I might have Property1, Property2...Propertyn and I want MyJson to only include Property3, Property5 and Property8.
I thought of a way to do this by creating a new object with only the properties I want and from there create a new list for the serialization.
For my ASP.Net application I need to use a HTTP REST API that returns a JSON object.Here's how the JSON looks:
message: [
{
type: "message"
href: "/messages/id/23"[code]....
I could use the DataContractJsonSerializer Class and have custom Classes defined. However, am not sure how keys like "$" would get converted to in .Net.
I am unable to convert JSON string to .net object in asp.net. I am sending JSON string from client to server using hidden field (by keeping the JSON object.Tostring() in hidden field and reading the hidden field value in code behind file)
Json string/ Object:
[[{"OfferId":"1","OrderValue":"11","HostingTypeID":"3"},
{"OfferId":"1","OrderValue":"11","HostingTypeID":"3"},
{"OfferId":"1","OrderValue":"11","HostingTypeID":"3"},
{"OfferId":"1","OrderValue":"2","HostingTypeID":"3"},
[Code]....
While converting i am getting following error:
Expecting element 'root' from namespace ''.. Encountered 'None' with name '', namespace ''.
I have a json object collection of geo locations that I build in the server. Each of those objects has two properties: "marker" and "onClick". Marker is for storing a Google Maps marker object and the onClick stores the name of the function to be called when that marker is clicked on the map.When I'm pushing the location objects into an array using javascript in the client side, I create the markers and assign them to each location object within the array.
My problem is that when I bind the marker with the onClick property, the function won't be found in the DOM and get an error.Is there a way to declare a property in a json object for using it on an event binding?
I have the following result in my controller from the $.toJSON method;
"[{"param":"Update Payment","value":"50.00"}]"
How do I extract the values from param: and value: ???
I try to use the jquery + json to get all elements in form and build a JSON var to post in a ASP.NET MVC method.
[Code]....
It method get all fields in a form and build a JSON, but it dont put JSON inside JSON.
Example:
If i have the follow form:
<input name="person.name"><input name="person.age"><input name="person.address.street">
The serialized string build a JSON like this
{ "person.name": "??", "person.age": "??", "person.address.street": "??" }
I need a plugin or some function to generate like this:
{ "person": { "name" : "??", "age" : "??", "address":{ "street": "??" } } }
I have a list of person objects which I want to send in response to a jquery' ajax request. I want to send the list into JSON format. The list is as follows -
List<Person> PersonList = new List<Person>();
Person Atiq = new Person("Atiq Hasan Mollah", 23, "Whassap Homie");
Person Sajib = new Person("Sajib Mamud", 24, "Chol kheye ashi");
PersonList.Add(Atiq);
PersonList.Add(Sajib);
How can I convert the "PersonList" list into JSON ?
I would like to get a field value using an index on an json object.
The json object looks like : {PartList:[{Field1:"echo",Field2:"bravo"},{Field1:"yes",Field2:"no"}]}
I know that if I would like to have the Field1 value it is on the index 0, and for example for the first item in the array:
jsonObject.PartList[0][0] , here the first index is working but the second index given is not. But is it possible to do this ?
I've created a simple (or what I thought was simple!) search form using Razor, MVC3 and the webgrid from the web helpers. I enabled paging, used a great article I found here to get that working... or so I thought. Basically what happens is that when I click the page buttons at the bottom of the grid it does something that I didn't expect, and creates a JSON object, then the browser prompts me to try and save it, and not as I expected to refill the grid. I can't see what I'm doing wrong, and before I break my monitor by throwing it onto the railway line!
[Code]....
My jQuery code
[Code]....
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MvcApplication1.Models;
using System.Configuration;
using System.Web.Helpers;
namespace MvcApplication1.Controllers
{
public class SearchController : Controller
{
//
// GET: /Search/
Entities t = new Entities(ConfigurationManager.ConnectionStrings["Entities"].ConnectionString);
public ActionResult Details(int id)
{
Tender_Question q = (from x in t.Tender_Questions where x.Unique_ID_number == id select x).SingleOrDefault();
Customer c = (from cu in t.Customers where cu.CustomersID == q.Company select cu).SingleOrDefault();
ViewBag.Customers = c.CompanyName;
Panel_type pan = (from pa in t.Panel_types where pa.ID == q.Panel_type select pa).SingleOrDefault();
ViewBag.Panel = pan.Panel_type1;
return View(q);
}
[HttpGet]
public ActionResult Edit(int id)
{
Tender_Question q = (from x in t.Tender_Questions where x.Unique_ID_number == id select x).SingleOrDefault();
List<Customer> c = (from cu in t.Customers select cu).ToList();
ViewBag.Customers = c;
return View(q);
}
[HttpPost]
public ActionResult Edit(Tender_Question model)
{
if (ModelState.IsValid)
{
Tender_Question q = (from x in t.Tender_Questions where x.Unique_ID_number == model.Unique_ID_number select x).SingleOrDefault();
q.Answer = model.Answer;
q.Company = model.Company;
q.Customer = model.Customer;
q.Date = model.Date;
q.Page_Question_Ref = model.Page_Question_Ref;
q.Panel_type = model.Panel_type;
q.Question = model.Question;
q.Type_of_tender = model.Type_of_tender;
//add update code
t.SaveChanges();
return RedirectToAction("Index");
}
else
{
return View(model);
}
}
[HttpGet]
public ActionResult Search(int? page)
{
if (page.HasValue)
{
return RedirectToAction("EfficientPaging", new { page = page });
}
else
{
return View();
}
}
[HttpPost]
public ActionResult Search(int? page, FormCollection collection)
{
TempData.Clear();
IEnumerable<Tender_Question> q = getSearch(collection);
TempData.Add("Results", q);
return View(q);
}
private IEnumerable<Tender_Question> getSearch(FormCollection collection)
{
string question;
string answer;
IEnumerable<Tender_Question> q = t.Tender_Questions;
question = collection["Question"];
answer = collection["Answer"];
if (!string.IsNullOrEmpty(question))
{
if (question.EndsWith(","))
{
question = question.Substring(0, question.Length - 1);
} if (question.Length > 0)
{
if (question.Contains(","))
{
string[] questioned = question.Split(',');
foreach (string s in questioned)
{
q = q.Where(m => m.Question.Contains(s));
}
}
else
{
q = q.Where(m => m.Question.Contains(question));
}
}
}
if (!string.IsNullOrEmpty(answer))
{
if (answer.EndsWith(","))
{
answer = answer.Substring(0, answer.Length - 1);
}
if (answer.Length > 0)
{
if (answer.Contains(","))
{
string[] answered = answer.Split(',');
foreach (string s in answered)
{
q = q.Where(m => m.Answer.Contains(s));
}
}
else
{
q = q.Where(m => m.Answer.Contains(answer));
}
}
}
return q;
}
[HttpGet]
public ActionResult EfficientPaging(int? page)
{
IEnumerable<Tender_Question> q = (IEnumerable<Tender_Question>)TempData["Results"];
int skip = page.HasValue ? page.Value - 1 : 0;
q = q.OrderBy(o => o.Unique_ID_number).Skip(skip * 10).Take(10).ToList();
var grid = new WebGrid(q);
var column = new WebGridColumn();
column.CanSort = false;
column.ColumnName = "Unique_ID_number";
column.Header = "Edit";
column.Format = (item) =>
{
return new HtmlString("<a href="/Home/Edit/" + column.ColumnName + "">Edit</a> ");
};
var detcolumn = new WebGridColumn();
detcolumn.CanSort = false;
detcolumn.ColumnName = "Unique_ID_number";
detcolumn.Header = "Details";
detcolumn.Format = (item) =>
{
return new HtmlString("<a href="/Home/Details/" + column.ColumnName + "">Details</a> ");
};
var htmlString = grid.GetHtml(htmlAttributes: new { id = "DataTable" }, columns: grid.Columns(
column, detcolumn,
grid.Column("Question"),
grid.Column("Answer"),
grid.Column("Company"),
grid.Column(columnName: "Type_of_tender", header: "Type of Tender"),
grid.Column(columnName: "Panel_type", header: "Panel type"),
grid.Column(columnName: "Page_Question_Ref", header: "Page Question Ref"),
grid.Column("Date")
));
return Json(new
{
Data = htmlString.ToHtmlString(),
Count =q.Count() / 10
}, JsonRequestBehavior.AllowGet);
}
}
}
Wondering how to deserialize the following string in c#:
"[{"access_token":"thisistheaccesstoken"}]"
I know how to do it if the json was:
"{array=[{"access_token":"thisistheaccesstoken"}]}"
I'd do it like this:
public class AccessToken
{
public string access_token {get;set;}
public DateTime expires { get; set; }
}
public class TokenReturn
{
public List<AccessToken> tokens { get; set; }
}
JavaScriptSerializer ser = new JavaScriptSerializer();
TokenReturn result = ser.Deserialize<TokenReturn>(responseFromServer);