如何在winform DataGridView控件的DataGridViewButtonColumn按钮列中禁用按钮

原文：http://msdn.microsoft.com/en-us/library/ms171619(v=vs.85).ASPX

public class DataGridViewDisableButtonColumn : DataGridViewButtonColumn

    {

        public DataGridViewDisableButtonColumn()

        {

            this.CellTemplate = new DataGridViewDisableButtonCell();

        }

    }

/// <summary>

/// DataGridView的DataGridViewButtonCell没有可以禁用按钮的功能，这里自定义一个控件实现这个功能

/// </summary>

public class DataGridViewDisableButtonCell : DataGridViewButtonCell

{

    private bool enabledValue;



    /// <summary>

    /// 是否使能

    /// </summary>

    public bool Enabled

    {

        get

        {

            return enabledValue;

        }

        set

        {

            enabledValue = value;

        }

    }



    // Override the Clone method so that the Enabled property is copied.

    public override object Clone()

    {

        DataGridViewDisableButtonCell cell =

            (DataGridViewDisableButtonCell)base.Clone();

        cell.Enabled = this.Enabled;

        return cell;

    }



    // By default, enable the button cell.

    public DataGridViewDisableButtonCell()

    {

        this.enabledValue = true;

    }



    protected override void Paint(Graphics graphics,

        Rectangle clipBounds, Rectangle cellBounds, int rowIndex,

        DataGridViewElementStates elementState, object value,

        object formattedValue, string errorText,

        DataGridViewCellStyle cellStyle,

        DataGridViewAdvancedBorderStyle advancedBorderStyle,

        DataGridViewPaintParts paintParts)

    {

        // The button cell is disabled, so paint the border,  

        // background, and disabled button for the cell.

        if (!this.enabledValue)

        {

            // Draw the cell background, if specified.

            if ((paintParts & DataGridViewPaintParts.Background) ==

                DataGridViewPaintParts.Background)

            {

                SolidBrush cellBackground =

                    new SolidBrush(cellStyle.BackColor);

                graphics.FillRectangle(cellBackground, cellBounds);

                cellBackground.Dispose();

            }



            // Draw the cell borders, if specified.

            if ((paintParts & DataGridViewPaintParts.Border) ==

                DataGridViewPaintParts.Border)

            {

                PaintBorder(graphics, clipBounds, cellBounds, cellStyle,

                    advancedBorderStyle);

            }



            // Calculate the area in which to draw the button.

            Rectangle buttonArea = cellBounds;

            Rectangle buttonAdjustment =

                this.BorderWidths(advancedBorderStyle);

            buttonArea.X += buttonAdjustment.X;

            buttonArea.Y += buttonAdjustment.Y;

            buttonArea.Height -= buttonAdjustment.Height;

            buttonArea.Width -= buttonAdjustment.Width;



            // Draw the disabled button.                

            ButtonRenderer.DrawButton(graphics, buttonArea,

                PushButtonState.Disabled);



            // Draw the disabled button text. 

            if (this.FormattedValue is String)

            {

                TextRenderer.DrawText(graphics,

                    (string)this.FormattedValue,

                    this.DataGridView.Font,

                    buttonArea, SystemColors.GrayText);

            }

        }

        else

        {

            // The button cell is enabled, so let the base class 

            // handle the painting.

            base.Paint(graphics, clipBounds, cellBounds, rowIndex,

                elementState, value, formattedValue, errorText,

                cellStyle, advancedBorderStyle, paintParts);

        }

    }

}