aspnet-ej1-demos/HeatMap/Virtualization.aspx.cs

#region Copyright Syncfusion Inc. 2001-2022.
// Copyright Syncfusion Inc. 2001-2022. All rights reserved.
// Use of this code is subject to the terms of our license.
// A copy of the current license can be obtained at any time by e-mailing
// licensing@syncfusion.com. Any infringement will be prosecuted under
// applicable laws. 
#endregion
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Syncfusion.JavaScript.DataVisualization;
using Syncfusion.JavaScript.DataVisualization.Models;
using Syncfusion.JavaScript.DataVisualization.Models.Collections;
using Syncfusion.JavaScript.DataVisualization.HeatMapEnums;
using Syncfusion.JavaScript.Shared.Serializer;
using System.ComponentModel;

namespace WebSampleBrowser.HeatMap
{
    public partial class Virtualization : System.Web.UI.Page
    {

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                CreateTableHeatmap();

            }
        }
        public void CreateTableHeatmap()
        {







            TableMapping TableMapping = new TableMapping();
            TableMapping.HeaderMapping = new HeaderMapping() { PropertyName = "Year", DisplayName = "Year", ColumnStyle = new ColumnStyle() { TextAlign = HeatMapTextAlign.Right } };
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "January", DisplayName = "January" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "February", DisplayName = "February" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "March", DisplayName = "March" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "April", DisplayName = "April" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "May", DisplayName = "May" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "June", DisplayName = "June" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "July", DisplayName = "July" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "August", DisplayName = "August" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "September", DisplayName = "September" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "October", DisplayName = "October" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "November", DisplayName = "November" });
            TableMapping.ColumnMapping.Add(new HeaderMapping() { PropertyName = "December", DisplayName = "December" });
            VirtualHeatmap.ItemsMapping = TableMapping;

            VirtualHeatmap.ItemsSource = GetVirtualSource();


        }
        public Collection GetVirtualSource()
        {
            Collection collection = new Collection();
            Random random = new Random();
            for (int i = 0; i < 900; i++)
            {
                collection.Add(new HeatMapVirtualData()
                {
                    Year = 2016 - i,
                    Jan = random.Next(0, 100),
                    Feb = random.Next(0, 100),
                    Mar = random.Next(0, 100),
                    Apr = random.Next(0, 100),
                    May = random.Next(0, 100),
                    Jun = random.Next(0, 100),
                    Jul = random.Next(0, 100),
                    Aug = random.Next(0, 100),
                    Sep = random.Next(0, 100),
                    Oct = random.Next(0, 100),
                    Nov = random.Next(0, 100),
                    Dec = random.Next(0, 100),
                });
            }
            return collection;
        }
    }

    [Serializable]
    public class HeatMapVirtualData
    {
        private double year;
        [JsonProperty("Year")]
        [DefaultValue("")]
        public double Year
        {
            get { return year; }
            set { year = value; }
        }

        private double jan;
        [JsonProperty("January")]
        [DefaultValue("")]
        public double Jan
        {
            get { return jan; }
            set { jan = value; }
        }
        private double feb;
        [JsonProperty("February")]
        [DefaultValue("")]
        public double Feb
        {
            get { return feb; }
            set { feb = value; }
        }

        private double mar;
        [JsonProperty("March")]
        [DefaultValue("")]
        public double Mar
        {
            get { return mar; }
            set { mar = value; }
        }

        private double apr;
        [JsonProperty("April")]
        [DefaultValue("")]
        public double Apr
        {
            get { return apr; }
            set { apr = value; }
        }

        private double may;
        [JsonProperty("May")]
        [DefaultValue("")]
        public double May
        {
            get { return may; }
            set { may = value; }
        }

        private double jun;
        [JsonProperty("June")]
        [DefaultValue("")]
        public double Jun
        {
            get { return jun; }
            set { jun = value; }
        }

        private double jul;
        [JsonProperty("July")]
        [DefaultValue("")]
        public double Jul
        {
            get { return jul; }
            set { jul = value; }
        }

        private double aug;
        [JsonProperty("August")]
        [DefaultValue("")]
        public double Aug
        {
            get { return aug; }
            set { aug = value; }
        }

        private double sep;
        [JsonProperty("September")]
        [DefaultValue("")]
        public double Sep
        {
            get { return sep; }
            set { sep = value; }
        }

        private double oct;
        [JsonProperty("October")]
        [DefaultValue("")]
        public double Oct
        {
            get { return oct; }
            set { oct = value; }
        }

        private double nov;
        [JsonProperty("November")]
        [DefaultValue("")]
        public double Nov
        {
            get { return nov; }
            set { nov = value; }
        }

        private double dec;
        [JsonProperty("December")]
        [DefaultValue("")]
        public double Dec
        {
            get { return dec; }
            set { dec = value; }
        }
    }
}