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Showing posts with label json web service. Show all posts
Showing posts with label json web service. Show all posts

Wednesday, 28 August 2013

How To Create A JSON Web Service In ASP.NET

How To Create A JSON Web Service In ASP.NET
Categories : -  How to create Ajax enable wcf web service in

Introduction : - 

 .ASP.NET makes it easy to create web services but they usually return XML. Like many web developers I now prefer JSON. This article and sample code will show you how to get your web service to return data in the JSON format.

Description : -

  For fetch the data from MySQL database using web service in json format  step as shown below.

 Step :- 1 Create a new web site 
Step : -2 Write click on website and add new web service 
Step : -3 Write a code on WebService.cs file

as shown below

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Script.Services;
using MySql.Data.MySqlClient;
using System.Data;
using System.Web.Script.Serialization;
/// <summary>
/// Summary description for WebService
/// </summary>
[WebService(Namespace = "")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
// [System.Web.Script.Services.ScriptService]
public class WebService : System.Web.Services.WebService {

    public WebService () {

        //Uncomment the following line if using designed components

    public string HelloWorld() {
        return "Hello World";

     [WebMethod(Description = "Gets All Records.")]

       [ScriptMethod(ResponseFormat = ResponseFormat.Json)]

      public string GetAllRecords() {

          MySqlConnection objConnection = new MySqlConnection("server=localhost;User Id=root;database=databaseName;Pooling=false;Connect Timeout=10;Allow User Variables=True;");

          MySqlCommand objCommand = new MySqlCommand("SELECT * FROM info_tab  ORDER BY id", objConnection);

          DataSet objDataSet = new DataSet();

          MySqlDataAdapter objDataAdapter = new MySqlDataAdapter(objCommand);

           objDataAdapter.Fill(objDataSet, "reading");

             // Create a multidimensional jagged array
           string[][] JaggedArray = new string[objDataSet.Tables[0].Rows.Count][];

           int i = 0;

          foreach (DataRow rs in objDataSet.Tables[0].Rows)


               JaggedArray[i] = new string[] { rs["user_id"].ToString(), rs["First_Name"].ToString(), rs["Last_Name"].ToString() };

               i = i + 1;


             // Return JSON data

           JavaScriptSerializer js = new JavaScriptSerializer();

          string strJSON = js.Serialize(JaggedArray);

          return strJSON;


For Connect to my sql  use the Connector .MySql Connector Download Link is Click

Run your service and seen output like this

Click on  GetAlRecords

 Again Click on Invoke Button and output as shown below

Note : - In Connection String i am not use a password If you define a password at the time of installation of MySQL database then use password=y our password; in connection string


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