DataGridView中显示进度条（ProgressBar）

using System;
using System.Drawing;
using System.Windows.Forms;
public class DataGridViewProgressBarColumn : DataGridViewTextBoxColumn
{
    public DataGridViewProgressBarColumn()
    {
        this.CellTemplate = new DataGridViewProgressBarCell();
    }
    public override DataGridViewCell CellTemplate
    {
        get
        {
            return base.CellTemplate;
        }
        set
        {
            if (!(value is DataGridViewProgressBarCell))
            {
                throw new InvalidCastException("DataGridViewProgressBarCellオブジェクトを" + "指定してください。");
            }
            base.CellTemplate = value;
        }
    }
    ///

    /// ProgressBarの最大値
    ///

    public int Maximum
    {
        get
        {
            return ((DataGridViewProgressBarCell)this.CellTemplate).Maximum;
        }
        set
        {
            if (this.Maximum == value)
                return;
            ((DataGridViewProgressBarCell)this.CellTemplate).Maximum =value;

            if (this.DataGridView == null)
                return;
            int rowCount = this.DataGridView.RowCount;
            for (int i = 0; i < rowCount; i++)
            {
                DataGridViewRow r = this.DataGridView.Rows.SharedRow(i);
                ((DataGridViewProgressBarCell)r.Cells[this.Index]).Maximum = value;
            }
        }
    }
    ///

    /// ProgressBarの最小値
    ///

    public int Mimimum
    {
        get
        {
            return ((DataGridViewProgressBarCell)this.CellTemplate).Mimimum;
        }
        set
        {
            if (this.Mimimum == value)
                return;
            ((DataGridViewProgressBarCell)this.CellTemplate).Mimimum = value;
            if (this.DataGridView == null)
                return;
            int rowCount = this.DataGridView.RowCount;
            for (int i = 0; i < rowCount; i++)
            {
                DataGridViewRow r = this.DataGridView.Rows.SharedRow(i);
                ((DataGridViewProgressBarCell)r.Cells[this.Index]).Mimimum = value;
            }
        }
    }
}
///

/// ProgressBarをDataGridViewに表示する
///

public class DataGridViewProgressBarCell : DataGridViewTextBoxCell
{
    public DataGridViewProgressBarCell()
    {
        this.maximumValue = 100;
        this.mimimumValue = 0;
    }
    
    private int maximumValue;
    public int Maximum
    {
        get
        {
            return this.maximumValue;
        }
        set
        {
            this.maximumValue = value;
        }
    }

    private int mimimumValue;
    public int Mimimum
    {
        get
        {
            return this.mimimumValue;
        }
        set
        {
            this.mimimumValue = value;
        }
    }
    public override Type ValueType
    {
        get
        {
            return typeof(int);
        }
    }
    public override object DefaultNewRowValue
    {
        get
        {
            return 0;
        }
    }
    public override object Clone()
    {
        DataGridViewProgressBarCell cell = (DataGridViewProgressBarCell)base.Clone();
        cell.Maximum = this.Maximum;
        cell.Mimimum = this.Mimimum;
        return cell;
    }

    protected override void Paint(Graphics graphics,
        Rectangle clipBounds, Rectangle cellBounds,
        int rowIndex, DataGridViewElementStates cellState,
        object value, object formattedValue, string errorText,
        DataGridViewCellStyle cellStyle,
        DataGridViewAdvancedBorderStyle advancedBorderStyle,
        DataGridViewPaintParts paintParts)
    {
        int intValue = 0;
        if (value is int)
            intValue = (int)value;
        if (intValue < this.mimimumValue)
            intValue = this.mimimumValue;
        if (intValue > this.maximumValue)
            intValue = this.maximumValue;
        double rate = (double)(intValue - this.mimimumValue) / (this.maximumValue - this.mimimumValue);
        if ((paintParts & DataGridViewPaintParts.Border) == DataGridViewPaintParts.Border)
        {
            this.PaintBorder(graphics, clipBounds, cellBounds,
                cellStyle, advancedBorderStyle);
        }
        Rectangle borderRect = this.BorderWidths(advancedBorderStyle);
        Rectangle paintRect = new Rectangle(
            cellBounds.Left + borderRect.Left,
            cellBounds.Top + borderRect.Top,
            cellBounds.Width - borderRect.Right,
            cellBounds.Height - borderRect.Bottom);
        bool isSelected = (cellState & DataGridViewElementStates.Selected) == DataGridViewElementStates.Selected;
        Color bkColor;
        if (isSelected && (paintParts & DataGridViewPaintParts.SelectionBackground) == DataGridViewPaintParts.SelectionBackground)
        {
            bkColor = cellStyle.SelectionBackColor;
        }
        else
        {
            bkColor = cellStyle.BackColor;
        }
        if ((paintParts & DataGridViewPaintParts.Background) == DataGridViewPaintParts.Background)
        {
            using (SolidBrush backBrush = new SolidBrush(bkColor))
            {
                graphics.FillRectangle(backBrush, paintRect);
            }
        }
        paintRect.Offset(cellStyle.Padding.Right, cellStyle.Padding.Top);
        paintRect.Width -= cellStyle.Padding.Horizontal;
        paintRect.Height -= cellStyle.Padding.Vertical;
        if ((paintParts & DataGridViewPaintParts.ContentForeground) == DataGridViewPaintParts.ContentForeground)
        {
            if (ProgressBarRenderer.IsSupported)
            {
                ProgressBarRenderer.DrawHorizontalBar(graphics, paintRect);
                Rectangle barBounds = new Rectangle(
                    paintRect.Left + 3, paintRect.Top + 3,
                    paintRect.Width - 4, paintRect.Height - 6);
                barBounds.Width = (int)Math.Round(barBounds.Width * rate);
                ProgressBarRenderer.DrawHorizontalChunks(graphics, barBounds);
            }
            else
            {
                graphics.FillRectangle(Brushes.White, paintRect);
                graphics.DrawRectangle(Pens.Black, paintRect);
                Rectangle barBounds = new Rectangle(
                    paintRect.Left + 1, paintRect.Top + 1,
                    paintRect.Width - 1, paintRect.Height - 1);
                barBounds.Width = (int)Math.Round(barBounds.Width * rate);
                graphics.FillRectangle(Brushes.Blue, barBounds);
            }
        }
        if (this.DataGridView.CurrentCellAddress.X == this.ColumnIndex &&
             this.DataGridView.CurrentCellAddress.Y == this.RowIndex &&
             (paintParts & DataGridViewPaintParts.Focus) ==
                 DataGridViewPaintParts.Focus &&
             this.DataGridView.Focused)
        {

            Rectangle focusRect = paintRect;
            focusRect.Inflate(-3, -3);
            ControlPaint.DrawFocusRectangle(graphics, focusRect);
        }
        if ((paintParts & DataGridViewPaintParts.ContentForeground) == DataGridViewPaintParts.ContentForeground)
        {

            string txt = string.Format("{0}%", Math.Round(rate * 100));

            TextFormatFlags flags = TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter;
            Color fColor = cellStyle.ForeColor;
            paintRect.Inflate(-2, -2);
            TextRenderer.DrawText(graphics, txt, cellStyle.Font,
                paintRect, fColor, flags);
        }
        if ((paintParts & DataGridViewPaintParts.ErrorIcon) ==
            DataGridViewPaintParts.ErrorIcon &&
            this.DataGridView.ShowCellErrors &&
            !string.IsNullOrEmpty(errorText))
        {
            Rectangle iconBounds = this.GetErrorIconBounds(
                graphics, cellStyle, rowIndex);
            iconBounds.Offset(cellBounds.X, cellBounds.Y);
            this.PaintErrorIcon(graphics, iconBounds, cellBounds, errorText);
        }
    }
}

//用法

DataGridViewProgressBarColumn pbColumn = new DataGridViewProgressBarColumn();
pbColumn.DataPropertyName = "Column1";
DataGridView1.Columns.Add(pbColumn);