Google chart: create chart in MVC

In this article I am going to explain how to create chart using Google chart API in MVC.


how to create chart using Google chart API in MVC

Description:
I want to show Indian states population on chart. Here I am using Google chart to create chart.

Implementation:
I have created a table tb_population and insert some dummy records.

Model
public partial class Tb_Population
    {
        public int Id { get; set; }
        public string StateName { get; set; }
        public Nullable<long> TotalPopulation { get; set; }
    }


Add controller
Add new empty controller to project and json action.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MVC_Project.Models;
using System.Web.WebPages.Html;
using System.Web.Mvc.Html;

namespace MVC_Project.Controllers
{
    public class ChartController : Controller
    {
        DemoEntities1 db = new DemoEntities1();
        //
        // GET: /Chart/
        public ActionResult Index()
        {          
            return View();
        }
        public JsonResult Chart()
        {
            var data = db.Tb_Population.ToList();
            return Json(data,JsonRequestBehavior.AllowGet);

        }
            }
}

Add view
Add view for index action.

Complete code of index.cshtml:
@{
    ViewBag.Title = "Google Chart API";
}

<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> 
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script src="https://www.gstatic.com/charts/loader.js"></script>

<script type="text/javascript">
    google.load("visualization", "1", { packages: ["corechart"] });
    google.setOnLoadCallback(drawChart);

    function drawChart() {

        $.post('/Chart/Chart/', {}, function (data) {
            var dt = new google.visualization.DataTable();

            dt.addColumn('string', 'StateName');
            dt.addColumn('number', 'TotalPopulation');

            for (var i = 0; i < data.length; i++) {
                dt.addRow([data[i].StateName, data[i].TotalPopulation]);
            }

            var options = {
                title: "State wise Population",
                is3D : true
            };

            var chart = new google.visualization.ColumnChart(document.getElementById('chart'));
            chart.draw(dt, options);
        }); 
    }
</script>

<fieldset>
    <legend>Google Chart API tutorial</legend>
    <div id="chart" style="height: 400px"></div>
</fieldset>






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