Display CanvasJs Column Charts using SQL Server
Header File
CS Page
DataBase:
Charts:
<script src="jquery-1.7.1.js"
type="text/javascript"></script>
<script src="canvasjs.min.js"
type="text/javascript"></script>
Aspx Page:
<%@ Page
Language="C#"
AutoEventWireup="true"
CodeBehind="CanvasjsChart.aspx.cs"
Inherits="BloggerCont.CanvasjsChart"
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD
XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script src="jquery-1.7.1.js"
type="text/javascript"></script>
<script src="canvasjs.min.js"
type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
Disp();
});
function Disp() {
var dataPts = [];
var var1;
var var2;
$.ajax({
cache: false,
async: false,
type: "POST",
dataType: "Json",
contentType: "application/json;
charset=utf-8",
url: "CanvasjsChart.aspx/GetAgeCharts",
data: {},
success: function (data) {
var
len = data.d.length;
for
(var i = 0; i < len; i++) {
dataPts.push({
label:
data.d[i].Name,
y:
parseFloat(data.d[i].Age)
});
}
var
chart = new CanvasJS.Chart("divchart",
{
title: {
text: "Canvas js Column chart"
},
data: [
{
type: "column",
dataPoints: dataPts
}]
});
chart.render();
},
error: function (result) {
alert(result);
}
});
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div id="divchart"></div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Services;
using System.Data.SqlClient;
using System.Configuration;
using System.Data;
namespace BloggerCont
{
public partial class CanvasjsChart
: System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
}
public class StdAge
{
public string Name;
public int Age;
}
[WebMethod]
public static object GetAgeCharts()
{
SqlConnection cn = new
SqlConnection(ConfigurationManager.ConnectionStrings["blogger"].ToString());
List<StdAge>
obj = new List<StdAge>();
cn.Open();
DataTable dt = new
DataTable();
SqlCommand cmd = new
SqlCommand();
SqlDataAdapter da = new
SqlDataAdapter("select
* from tbl_CanvasAge", cn);
da.Fill(dt);
cn.Close();
foreach (DataRow
dr in dt.Rows)
{
StdAge Std = new
StdAge();
Std.Name = Convert.ToString(dr[1].ToString());
Std.Age = Convert.ToInt32(dr[2].ToString());
obj.Add(Std);
}
return obj.ToArray();
}
}
}
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