Line and Spline charts

Line Chart

Now, let's learn how to create a Line chart. We will create a chart showcasing "Total Footfall in Bakersfield Central".

The data is shown in the table below:

Day Footfall
Monday 15123
Tuesday 14233
Wednesday 23507
Thursday 9110
Friday 15529
Saturday 20803
Sunday 19202

The chart will look as shown below:

FusionCharts will load here..

Click here to edit the line chart.

Render the Chart

Create the LineChart.aspx.cs file and do the following:

  • Include the FusionCharts.DataEngine and FusionCharts.Visualization .dll files.
  • Create DataTable.
  • Retrieve data using database query.
  • Set server name.
  • Set DataBase name.
  • Connect with DataBase using a connection string.
  • Create StaticSource using the DataTable.
  • Create an instance of DataModel class.
  • Add DataSource to the DataModel.
  • Instantiate Line Chart.
  • Set Chart's width and height.
  • Set DataModel instance as the data source of the chart.
  • Set Chart title.
  • Finally, use a container using <div> to render the chart.

The code is shown below:

using FusionCharts.DataEngine;
using FusionCharts.Visualization;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace FusionChartsVisualisationWebFormsSamples.Samples
{
    public partial class SeriesCustomization : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            string query = "select * from TotalFootfall";
            string connectionstring = null;
            string serverName = "FusionChartsServer";
            string databaseName = "FusionchartsSamplesDB";
            dt.Clear();
            connectionstring = "Data Source=" + serverName + ";Initial Catalog=" + databaseName + ";Trusted_Connection=true;";

            using (SqlConnection con = new SqlConnection(connectionstring))
            {
                con.Open();
                using (SqlCommand command = new SqlCommand(query, con))
                using (SqlDataAdapter da = new SqlDataAdapter(command))
                {
                    da.Fill(dt);
                }
            }
            StaticSource source = new StaticSource(ChartData);
            DataModel model = new DataModel();
            model.DataSources.Add(source);

            Charts.LineChart line = new Charts.LineChart("line_chart_db");

            line.ThemeName = FusionChartsTheme.ThemeName.FUSION;
            line.Width = "700";
            line.Height = "400";

            line.Data.Source = model;

            line.Caption.Text = "Total Footfall in BakersField Central";
            line.Caption.Bold = true;

            line.SubCaption.Text = "Last Week";
            line.XAxis.Text = "Day";
            line.YAxis.Text = "No. of visitors";

            line.Legend.Show = false;

            Literal1.Text = line.Render();
        }
    }
}

The .aspx template for the above sample is shown below:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="LineChart.aspx.cs" Inherits="FusionChartsVisualisationWebFormsSamples.Samples.LineChart" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/fusioncharts.js"></script>

<script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/themes/fusioncharts.theme.fusion.js"></script>

    <form id="form1" runat="server">
        <div>
            <asp:Literal ID="Literal1" runat="server"></asp:Literal>
        </div>
        <div>
            <input type ="button" value ="Samples" onclick="location.href = 'Index.aspx';" />
        </div>
    </form>
</body>
</html>

Spline Chart

Now, let's learn how to create a spline chart with the same data. The code remains the same as that of the Line chart. The only difference is instead of instantiating a line chart you have to instantiate a spline chart. Create a splineChart.aspx.cs and refer to the code below:

using FusionCharts.DataEngine;
using FusionCharts.Visualization;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace FusionChartsVisualisationWebFormsSamples.Samples
{
    public partial class SeriesCustomization : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            string query = "select * from TotalFootfall";
            string connectionstring = null;
            string serverName = "FusionChartsServer";
            string databaseName = "FusionchartsSamplesDB";
            dt.Clear();
            connectionstring = "Data Source=" + serverName + ";Initial Catalog=" + databaseName + ";Trusted_Connection=true;";

            using (SqlConnection con = new SqlConnection(connectionstring))
            {
                con.Open();
                using (SqlCommand command = new SqlCommand(query, con))
                using (SqlDataAdapter da = new SqlDataAdapter(command))
                {
                    da.Fill(dt);
                }
            }
            StaticSource source = new StaticSource(ChartData);
            DataModel model = new DataModel();
            model.DataSources.Add(source);

            Charts.SplineChart spline = new Charts.SplineChart("spline_chart_db");

            spline.ThemeName = FusionChartsTheme.ThemeName.FUSION;
            spline.Width = "700";
            spline.Height = "400";

            spline.Data.Source = model;

            spline.Caption.Text = "Total Footfall in BakersField Central";
            spline.Caption.Bold = true;

            spline.SubCaption.Text = "Last Week";
            spline.XAxis.Text = "Day";
            spline.YAxis.Text = "No. of visitors";

            spline.Legend.Show = false;

            Literal1.Text = spline.Render();
        }
    }
}

The .aspx template for the above sample is shown below:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="splineChart.aspx.cs" Inherits="FusionChartsVisualisationWebFormsSamples.Samples.splineChart" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/fusioncharts.js"></script>
    <script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/themes/fusioncharts.theme.fusion.js"></script>

    <form id="form1" runat="server">
        <div>
            <asp:Literal ID="Literal1" runat="server"></asp:Literal>
        </div>
        <div>
            <input type ="button" value ="Samples" onclick="location.href = 'Index.aspx';" />
        </div>
    </form>
</body>
</html>

The chart will look as shown below:

FusionCharts will load here..

Click here to edit the spline chart.

Was this article helpful to you ?