JSON format is used for returning values from WebMethod calls

Question

JSON format is used for returning values from WebMethod calls

How can I retrieve values from a Webmethod and format them in JSON for the client?

I have two static int values that need to be returned. Do I have to create a new object with these properties each time, or is there a more efficient way to handle this? The GetStatus() method is called frequently, and creating a new object for JSON formatting seems cumbersome...

[WebMethod]
public static int GetStatus()
{
    int statusProcess,statusProcessTotal;

    Status.Lock.EnterReadLock();
    statusProcess=Status.Process; //Static field
    statusProcessTotal=Status.ProcessTotal; //Static field        
    Status.Lock.ExitReadLock();

    return ...
}

On the client side, the return value is captured using:

function OnSucceeded(result, userContext, methodName)   
(PageMethods.GetStatus(OnSucceeded, OnFailed);)

asp.net javascript ajax json

Answer 1

Answer №1

Using an object is the best approach for your needs. When dealing with two return values, it's important to structure them together properly.


public class StatusResult
{
    public int StatusProcess { get; set; }
    public int StatusProcessTotal { get; set; }
}

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public StatusResult GetStatus()
{
    int statusProcess, statusProcessTotal;

    //Status.Lock.EnterReadLock();
    statusProcess = 5;
    statusProcessTotal = 1; //Static field        

    var result = new StatusResult();
    result.StatusProcess = statusProcess;
    result.StatusProcessTotal = statusProcessTotal;

    return result;
}

Answer 2

Using an object is the best approach for your needs. When dealing with two return values, it's important to structure them together properly.


public class StatusResult
{
    public int StatusProcess { get; set; }
    public int StatusProcessTotal { get; set; }
}

[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public StatusResult GetStatus()
{
    int statusProcess, statusProcessTotal;

    //Status.Lock.EnterReadLock();
    statusProcess = 5;
    statusProcessTotal = 1; //Static field        

    var result = new StatusResult();
    result.StatusProcess = statusProcess;
    result.StatusProcessTotal = statusProcessTotal;

    return result;
}

JSON format is used for returning values from WebMethod calls

Answer №1

Similar questions

Formulate a Generic Type using an Enum

Understanding JavaScript JSON Object Parsing

Converting a JS string into HTML markup

"Manipulating DOM Elements: Create and Delete Cloned Divs with

Activate event in jQuery when clicking on a blank area, away from any div element

Deleting a key from one object will also remove that key from another object - JavaScript

Seeking assistance with jQuery/AJAX syntax, any pointers

What is the best way to ensure that all components are updated simultaneously?

Determining the quantity of items in a MongoDB collection using Node.js

One way to add a JSON object to an empty JSON array using Javascript involves pushing

What is the best way to retrieve data input from my select dropdown?

Calling a C# Webmethod using jQuery AJAX is not working as expected

You are unable to assign mutations in Vuex

Executing a JavaScript/jQuery function on the following page

Discovering the precise Offset value for a Div element

Rails may encounter issues with the format of parameters in ajax requests at times

Using Vue's $emit method within a Promise

Error handling ajax and php in the submitHandler of $.validate

Is it possible to seamlessly alternate between JSON using the Jackson processor and XML using XStream, or is it feasible to use both formats simultaneously

Eliminating an SVG component from the webpage with the help of jQuery