I'm looking for a way to define and send a JSON object array. I've figured out how to define a single JSON object, turn it into a string and send it, but what about an array of this type? Probably something simple I'm overlooking...
var myColumnSetting = { "ColumnName": name,
"ColumnIndex": index
}
convert it to a string
var myJSONText = JSON.stringify(myColumnSetting, false);
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);
I am using the local database in web kit browsers and to get the data from the database I have the following code:
function synchronise() {
myDB.transaction(
function (transaction) {
transaction.executeSql("SELECT * FROM Patients;", [], synchroniseHandler, errorHandler);
}
);
[Code]....
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.
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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?
.I am using VS2010 Ultimate in an out of the box HelloWorld MVC2 ProjectI am using JQuery 1.4.1I have the following code in my View:
function TestStringArray() {
var stringArray = new Array();
stringArray[0] = "item1";
[code]...
Forgetting my controller actually needs to return a Json result (I have a break on the return View() line), the values parameter is null. When I pass in a single string (change the type from List<String> to String in the controller, pass in a single string value from the View), it works fine. Looking at Fiddler, the array is passing the multiple values.I did some research and people are suggesting JSON.Stringify ion the JSON2 library, the JSON.NEt library, etc... Do I really need extra libraries? Microsoft didn't think of this scenario for out of the box? I assume the problem is any kind of complex type.
I've been trying to deserialize the following JSON output into a vb.net object:
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The following is what i've done so far:
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I have problems reading the array value of "t". I'm quite sure that the problem lies in the PageTags() but i'm not sure how to go from here.
how to query return all data in Array Object ,Hash Table ,And DataTable dataRow
View 4 RepliesI have the following code
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But I get Object refernce not set to instance of an object error at
If Not ls_case_no.Length = 0 Then
What if statment should I use? - I want if there is no value in ls_case_no array then the if stmt should not be executed
I am getting an error when trying to serialize an object products.
Product product = new Product();
product.Name = "Apple";
product.Expiry = new DateTime(2008, 12, 28);
product.Price = 3.99M;
product.Sizes = new string[3,2] { {"Small","40"}, {"Medium","44"}, {"Large","50"} };
string json = JsonConvert.SerializeObject(product);//this line is throwing an error
Array was not a one-dimensional array. Is there any way to serialize a two dimensional array with Newtonsoft.json.
I'm using jqPlot and I need to turn this JSON which I receive from a WCF service:
[{ "x": 2, "y": 3 }, { "x": 25, "y": 34 }]
into this array or arrays:
[[2,3],[25,34]]
I am trying to return some data as json from an action method.
I have an employee object that looks like this:
public class Employee
{
public int EmployeeID {get; set;}
public string FirstName {get; set;}
public string LastName {get; set;}
//Other irrelevant properties
}
Then I have a view model as follows
public Class EmployeeViewModel
{
public Employee Supervisor{get; set;}
public List<EmployeeViewModel> Employees
}
I need to return a json object that looks exactly like this:
{id: 1, name: John, children: [
{id: 1, name: Joe, children: []},
{id: 1, name: Rob, children: []}
]}
For now I only need to go to the second level as above, returning and supervisor and their staff members beneath them.
How would I go about returning this in my action method(I have the viewModel object hydrated already I just need to return it as json). My problem so far has been that the children property does not get populated.
my JSON is as follows :
{     "Data":[        {           "id":"1",         "Name":"Sachin"      },      {           "id":"2",         "Name":"Rahul"      },     Â
{           "id":"3",         "Name":"Sovrav"      }   ]}
Now i want to filter out only array from that JSON and store them in a variable like this :
[        {           "id":"1",         "Name":"Sachin"      },      {           "id":"2",         "Name":"Rahul"      },     Â
{           "id":"3",         "Name":"Sovrav"      }   ]
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?
For some reason the following JSON string creates the correct number of records in the custom objects array, but does NOT populate the objects in the array with and values.
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I am trying to figure out how to send an image to Tuzulo using their api which appears to use JSON (quoted below). I have figured out how to receive information about what images I have with them and their URLs but cannot figure out how to send an image.
I have found lots of JSON examples but they all seem to show sending or receiving strings. Could someone give me a hint?
[URL]
Private API URLs These URLs require private keys, used for management and extension. To protect each upload, the private key must be known (saved, bookmarked, etc.). With an account, this becomes transparent.
[Code]....
<private-key>
Extend collection.
[Code]....
<private-key>
Manage collection.
Public keys are meant to be shared while private keys are meant to be temporarily bookmarked if necessary. Bookmarking is unnecessary when you're a site member.
I'm trying to create a validation layer that will contain methods to validate all my objects (in my Business Objects layer) .. but when I try to reference both the validation and business objects to each other I get a circular dependency error .. so I've decided to create a new layer (BLL) to validate the objects for me and I'll be able to reference both the validation and the object layers.
so I want to build some kind of class/interface -I don't know what fits more- to be like a generic type or a parent type that my method could accept it as a parameter and check for it's Name/ID property. Instead of defining a new method overload for each object type I have
Simplification
i have a array in javascript and need to send to server how i can send it in jquery and get them in controller . to send javascript array and get them in controller [c#]
View 2 RepliesI would to know how to pass variables. I have a variable in javascript but I dont know how to pass it to a textbox. I have read it is so easy using ajax, but I dont know how to use it. I believed this was just for not to have reload. Well, then how do I do it? I read I must use get and post, but I dont know how to use it.. for example I have the code:
function guardar() {
var completo = "hola mundo";
}
How do I get the variable completo to pass it in a textbox?
I now have two asp.net pages. When I click on a link on page A, I open the other one (let's call it page B). When I do this, I want to send some information from Page A to Page B in the form of an array of strings. This array is different depending on what link I follow on Page A.
I know I could send this information via the URL with the ?string1=bla1&string2=bla2 etc., but I don't want it that way, as it can get complicated if there are too many strings in the array.
I think there is something similar, like a POST in PHP, but how would that be in ASP?
i have an ASP.NET 4.0 HTTP handler that should receive and send data in json format. I'm using jquery to send json objects serialized in a string to the handler. It correctly sends the request but i don't know how i could retrieve the data from the httpcontext passed to the handler and how i could deserialize it..
UPDATE 1
$.ajax({
type: "POST",
url: "myurl.ashx",
dataType: "json",
contentType: "application/json; charset=utf-8",
data: $.toJSON({
...
}),
success: function (response) {
...
}
});
i am using json and jquery to send a form to the controller like below, when i click submit validation occers but line is executed even if form is invlid. How can i tell if form validation failed or succeded using javascript?
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I have a array of ArrayList as shown below:ArrayList[] m;My web service method takes this type as parameter.How can I send it to web service?When I do so the Web Service changes my array of ArrayList to Object[][]!
View 1 RepliesUpon clicking a button I need to send a collection and a few other variables to server in Json form.For each value in the collection the server code (C# ) wil update those other variables in the DB.
For example there is a ‘classnumber’ collection with values (First, Second, Third, ….),other variables (‘teacher_name’ and ‘subjectname’).For each value in the ‘classnumber’ collection I need to update the ‘teacher_name’ by searching for the ‘subject_name’ in the DB.So I need to pass the ‘classnumber’ collection,’teacher_name’,’subject_name’ values to server in json form. At the moment instead of sending the ‘classnumber’ collection I am sending ‘teacher_name’,’subject_name’,’classnumber’ as variables for each value in the collection ,which requires multiple requests made to the server.
Instead of these individual requests I am wondering if there is a way to send all the data at once to server in json form?
