public FreezeLines FreezeLines {get; set;}

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

namespace GrapeCity.Win.MultiRow.SampleCode
{
    public class FreezeDemo : Form
    {
        private GcMultiRow gcMultiRow1 = new GcMultiRow();
        private FlowLayoutPanel panel = new FlowLayoutPanel();

        public FreezeDemo()
        {
            this.Text = "Freeze Demo";
            this.Size = new Size(600, 350);

            // Initial flow layout panel and add to form.
            this.panel.Dock = DockStyle.Left;
            this.panel.Size = new Size(200, 200);
            this.panel.FlowDirection = FlowDirection.TopDown;
            this.panel.WrapContents = false;
            this.panel.Padding = new Padding(5);
            this.Controls.Add(panel);

            // Add MultiRow to form
            this.gcMultiRow1.Dock = DockStyle.Left;
            this.gcMultiRow1.Width = 400;
            this.Controls.Add(this.gcMultiRow1);

            // Tip label
            Label label = new Label();
            label.Height = 20;
            label.Dock = DockStyle.Bottom;
            label.BackColor = SystemColors.Info;
            label.Text = "Yow can try to click buttons and scroll MultiRow control. You will find the frozen area do not scroll.";
            this.Controls.Add(label);

            this.Load += new EventHandler(Form1_Load);

            InitButton();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Create a grid like template with 10 columns. The cells in template will be named "textBoxCell1", "textBoxCell2"..."textBoxCell10".
            gcMultiRow1.Template = Template.CreateGridTemplate(10);
            gcMultiRow1.RowCount = 30;

            // Initialize cell value for MultiRow control.
            for (int i = 0; i < gcMultiRow1.RowCount; i++)
            {
                gcMultiRow1.SetValue(i, "textBoxCell1", i);
            }
        }

        #region Button Event Handlers

        void setTopFreezButton_Click(object sender, EventArgs e)
        {
            if (this.gcMultiRow1.FreezeTopRowCount == 0)
            {
                // Freeze some rows in top of gcMultiRow.
                this.gcMultiRow1.FreezeTopRowCount = 2;
            }
            else
            {
                // Unfreeze rows in top of gcMultiRow.
                this.gcMultiRow1.FreezeTopRowCount = 0;
            }
        }

        void setLeftFreezeButton_Click(object sender, EventArgs e)
        {
            // You can use FreezeLeftCellIndex instead of FreezeLeftCellName to indicate which cell will be frozen.
            if (string.IsNullOrEmpty(this.gcMultiRow1.FreezeLeftCellName))
            {
                // Freeze some rows in top of gcMultiRow.
                this.gcMultiRow1.FreezeLeftCellName = "textBoxCell1";
                // this.gcMultiRow1.FreezeLeftCellIndex = 0;
            }
            else
            {
                // Unfreeze rows in top of gcMultiRow.
                this.gcMultiRow1.FreezeLeftCellName = string.Empty;
                // this.gcMultiRow1.FreezeLeftCellIndex = -1;
            }
        }

        void setRightFreezeButton_Click(object sender, EventArgs e)
        {
            // You can use FreezeRightCellIndex instead of FreezeRightCellName to indicate which cell will be frozen.
            if (string.IsNullOrEmpty(this.gcMultiRow1.FreezeRightCellName))
            {
                // Freeze some rows in top of gcMultiRow.
                this.gcMultiRow1.FreezeRightCellName = "textBoxCell10";
                // this.gcMultiRow1.FreezeRightCellIndex = 0;
            }
            else
            {
                // Unfreeze rows in top of gcMultiRow.
                this.gcMultiRow1.FreezeRightCellName = string.Empty;
                // this.gcMultiRow1.FreezeRightCellIndex = -1;
            }
        }

        void setBottomFreezeButton_Click(object sender, EventArgs e)
        {
            if (this.gcMultiRow1.FreezeBottomRowCount == 0)
            {
                // Freeze some rows in bottom of gcMultiRow.
                this.gcMultiRow1.FreezeBottomRowCount = 2;
            }
            else
            {
                // Unfreeze rows in bottom of gcMultiRow.
                this.gcMultiRow1.FreezeBottomRowCount = 0;
            }
        }

        void setFreezeStyleButton_Click(object sender, EventArgs e)
        {
            FreezeLines freezeLines = this.gcMultiRow1.FreezeLines;

            if (this.gcMultiRow1.FreezeLines.All == new Line(LineStyle.Thin, Color.Black))
            {
                // set top freeze line to a thin red line.
                freezeLines.Top = new Line(LineStyle.Thin, Color.Red);
                // set top freeze line to a thin red line.
                freezeLines.Bottom = new Line(LineStyle.MediumDashed, Color.Green);
                // set top freeze line to a thin red line.
                freezeLines.Right = new Line(LineStyle.Double, Color.Blue);
                // hide left freeze line, but freeze behavior still take effect.
                freezeLines.Left = Line.Empty;
            }
            else
            {
                freezeLines.All = new Line(LineStyle.Thin, Color.Black);
            }

            this.gcMultiRow1.FreezeLines = freezeLines;
        }

        #endregion

        #region Initialize Buttons

        private void InitButton()
        {
            AddButton(setTopFreezButton, "Freeze/Unfreeze rows in top", new EventHandler(setTopFreezButton_Click));
            AddButton(setLeftFreezeButton, "Freeze/Unfreeze cell in left", new EventHandler(setLeftFreezeButton_Click));
            AddButton(setRightFreezeButton, "Freeze/Unfreeze cell in right", new EventHandler(setRightFreezeButton_Click));
            AddButton(setBottomFreezeButton, "Freeze/Unfreeze rows in bottom", new EventHandler(setBottomFreezeButton_Click));
            AddButton(setFreezeStyleButton, "Change freeze style appearance", new EventHandler(setFreezeStyleButton_Click));
        }

        private void AddButton(Button button, string text, EventHandler eventHandler)
        {
            this.panel.Controls.Add(button);
            button.Text = text;
            button.AutoSize = true;
            button.Click += eventHandler;
        }

        Button setTopFreezButton = new Button();
        Button setLeftFreezeButton = new Button();
        Button setRightFreezeButton = new Button();
        Button setBottomFreezeButton = new Button();
        Button setFreezeStyleButton = new Button();

        #endregion

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