C#如何禁用datagridview控件中的button控件
DataGridView 控件包括 DataGridViewButtonCell 类，该类用于显示具有类似按钮的用户界面 (UI) 的单元格。但 DataGridViewButtonCell 不提供禁用由单元格显示的按钮外观的方式。
下面的代码示例演示如何自定义 DataGridViewButtonCell 类来显示可以显示为禁用的按钮。本示例定义一个新的单元格类型 DataGridViewDisableButtonCell，它由 DataGridViewButtonCell 派生。此单元格类型提供一个新的 Enabled 属性，可以将该属性设置为 false 来在单元格中绘制禁用的按钮。本示例还定义一个新的列类型 DataGridViewDisableButtonColumn，它显示 DataGridViewDisableButtonCell 对象。为了演示此新单元格类型和列类型，父 DataGridView 中的每个 DataGridViewCheckBoxCell 的当前值确定同一行中 DataGridViewDisableButtonCell 的 Enabled 属性是 true 还是 false。
首先要在代码中加入下面两个继承类：
public class DataGridViewDisableButtonColumn : DataGridViewButtonColumn { public DataGridViewDisableButtonColumn() { this.CellTemplate = new DataGridViewDisableButtonCell(); } } 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 = this.Enabled; return 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) { if (!this.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 = this.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 (this.FormattedValue is String) { TextRenderer.DrawText(graphics, (string)this.FormattedValue, this.DataGridView.Font, buttonArea, SystemColors.GrayText); } } else { base.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts); } } }DataGridViewDisableButtonColumn btn_ProEdit = new DataGridViewDisableButtonColumn(); btn_ProEdit.HeaderText = l.ALanuageBinding("gv_Action"); btn_ProEdit.Text = l.ALanuageBinding("gv_Edit"); btn_ProEdit.Name = "btn_ProEdit"; btn_ProEdit.Width = 50; btn_ProEdit.UseColumnTextForButtonValue = true;this.datagridview1.Columns.Add(btn_ProEdit);DataGridViewDisableButtonCell buttonCell = (DataGridViewDisableButtonCell)dgv_Promotiom.Rows[i].Cells["btn_ProEdit"]; buttonCell.Enabled = false;