public sealed class ConditionalCellStyle : CellStyle 

using System;
using System.Windows.Forms;
using System.Drawing;

namespace GrapeCity.Win.MultiRow.SampleCode
{
    class ConditionalCellStyleDemo : Form
    {
        private GcMultiRow gcMultiRow1 = new GcMultiRow();
        private Label label1 = new Label();

        public ConditionalCellStyleDemo()
        {
            this.Text = "ConditionalCellStyle Demo";
            this.Size = new Size(600, 400);

            this.gcMultiRow1.Dock = DockStyle.Fill;
            this.Controls.Add(this.gcMultiRow1);

            label1.Text = "Change the Cell's value, the corresponding background will be painted.\r\nNote, the cells only accept int number.";
            label1.Height = 50;
            label1.Dock = DockStyle.Bottom;
            label1.BackColor = SystemColors.Info;
            label1.ForeColor = Color.Red;
            this.Controls.Add(label1);

            this.Load += new EventHandler(Form1_Load);

            this.StartPosition = FormStartPosition.CenterScreen;
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            Template template1 = Template.CreateGridTemplate(10, 50, 21);

            CellStyle cellStyle1 = new CellStyle();
            cellStyle1.BackColor = Color.Lime;

            CellStyle cellStyle2 = new CellStyle();
            cellStyle2.BackColor = Color.Yellow;

            CellStyle cellStyle3 = new CellStyle();
            cellStyle3.BackColor = Color.Red;

            //If the cell's value is less than 5, the background will painted to green color
            ConditionalCellStyleItem item1 = new ConditionalCellStyleItem(cellStyle1, ConditionalCellStyleOperator.LessThan, 5);
            //If the cell's value is between 5 and 8, the background will painted to yellow color
            ConditionalCellStyleItem item2 = new ConditionalCellStyleItem(cellStyle2, ConditionalCellStyleOperator.Between, 5, 8);
            //If the cell's value is greater than 8, the background will painted to red color
            ConditionalCellStyleItem item3 = new ConditionalCellStyleItem(cellStyle3, ConditionalCellStyleOperator.GreaterThan, 8);
            //Create one ConditionalCellStyle with three items.
            ConditionalCellStyle conditionalStyle1 = new ConditionalCellStyle();
            conditionalStyle1.Items.AddRange(new ConditionalCellStyleItem[] { item1, item2, item3 });
            
            for (int i = 0; i < template1.Row.Cells.Count - 1; i++)
            {
                template1.Row.Cells[i].Style = conditionalStyle1;
                template1.Row.Cells[i].Value = i + 1;
                template1.Row.Cells[i].ValueType = typeof(Int32);
            }
            gcMultiRow1.Template = template1;
            gcMultiRow1.RowCount = 5;
        }

        [STAThreadAttribute()]
        public static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new ConditionalCellStyleDemo());
        }
    }
}