public class DataGridViewDisableButtonColumn : DataGridViewButtonColumn { public DataGridViewDisableButtonColumn() { CellTemplate = new DataGridViewDisableButtonCell(); } public override sealed DataGridViewCell CellTemplate { get { return base.CellTemplate; } set { base.CellTemplate = value; } } } public class DataGridViewDisableButtonCell : DataGridViewButtonCell { private bool _enabledValue; public bool Enabled { get { return _enabledValue; } set { _enabledValue = value; } } public override object Clone() { DataGridViewDisableButtonCell cell = (DataGridViewDisableButtonCell) base.Clone(); cell.Enabled = Enabled; return cell; } public DataGridViewDisableButtonCell() { _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) { if (!_enabledValue) { if ((paintParts & DataGridViewPaintParts.Background) == DataGridViewPaintParts.Background) { SolidBrush cellBackground = new SolidBrush(cellStyle.BackColor); graphics.FillRectangle(cellBackground, cellBounds); cellBackground.Dispose(); } if ((paintParts & DataGridViewPaintParts.Border) == DataGridViewPaintParts.Border) { PaintBorder(graphics, clipBounds, cellBounds, cellStyle, advancedBorderStyle); } Rectangle buttonArea = cellBounds; Rectangle buttonAdjustment = BorderWidths(advancedBorderStyle); buttonArea.X += buttonAdjustment.X; buttonArea.Y += buttonAdjustment.Y; buttonArea.Height -= buttonAdjustment.Height; buttonArea.Width -= buttonAdjustment.Width; ButtonRenderer.DrawButton(graphics, buttonArea, System.Windows.Forms.VisualStyles.PushButtonState.Disabled); if (FormattedValue is String) { TextRenderer.DrawText(graphics, (string) FormattedValue, DataGridView.Font, buttonArea, SystemColors.GrayText); } } else { base.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts); } } }
