### C# WinForms 中实现 DataGridView 行上下移动的功能 以下是基于 `DataGridView` 的行上下移动功能的完整示例代码： ```csharp using System; using System.Collections.Generic; using System.Windows.Forms; public class Form1 : Form { private DataGridView dataGridView1 = new DataGridView(); private Button btnMoveUp = new Button { Text = "向上移动" }; private Button btnMoveDown = new Button { Text = "向下移动" }; public Form1() { this.Controls.Add(dataGridView1); this.Controls.Add(btnMoveUp); this.Controls.Add(btnMoveDown); // 初始化 DataGridView 和按钮布局 InitializeDataGridView(); InitializeButtons(); // 绑定事件 btnMoveUp.Click += BtnMoveUp_Click; btnMoveDown.Click += BtnMoveDown_Click; } private void InitializeDataGridView() { dataGridView1.Dock = DockStyle.Top; dataGridView1.Height = 200; // 添加一些测试数据 dataGridView1.Columns.Add("Column1", "列1"); dataGridView1.Columns.Add("Column2", "列2"); dataGridView1.Rows.Add(new object[] { "A", "B" }); dataGridView1.Rows.Add(new object[] { "C", "D" }); dataGridView1.Rows.Add(new object[] { "E", "F" }); } private void InitializeButtons() { btnMoveUp.Location = new System.Drawing.Point(10, 210); btnMoveDown.Location = new System.Drawing.Point(100, 210); } private void MoveRow(int direction) { if (dataGridView1.SelectedRows.Count == 0) return; int currentIndex = dataGridView1.SelectedRows[0].Index; int targetIndex = currentIndex + direction; if (targetIndex >= 0 && targetIndex < dataGridView1.RowCount) { List<object> rowData = new List<object>(); foreach (DataGridViewCell cell in dataGridView1.SelectedRows[0].Cells) rowData.Add(cell.Value); for (int i = 0; i < dataGridView1.Columns.Count; i++) { dataGridView1.Rows[currentIndex].Cells[i].Value = dataGridView1.Rows[targetIndex].Cells[i].Value; dataGridView1.Rows[targetIndex].Cells[i].Value = rowData[i]; } dataGridView1.Rows[targetIndex].Selected = true; dataGridView1.Rows[currentIndex].Selected = false; } else { MessageBox.Show(direction > 0 ? "已经是最后一行了!" : "已经是第一行了!"); } } private void BtnMoveUp_Click(object sender, EventArgs e) { MoveRow(-1); // 向上移动逻辑 [^2] } private void BtnMoveDown_Click(object sender, EventArgs e) { MoveRow(1); // 向下移动逻辑 [^2] } [STAThread] static void Main() { Application.EnableVisualStyles(); Application.Run(new Form1()); } } ``` #### 功能说明 - **向上的逻辑**：通过交换当前选中行与其上方行的数据来完成操作。 - **向下的逻辑**：同理，通过交换当前选中行与其下方行的数据来完成操作。 - 如果尝试将首行向上移动或末行向下移动，则会弹出提示消息框。 --- ### 注意事项 为了确保程序运行正常，请注意以下几点： - 当前仅支持单行选中的情况下执行此功能。如果允许多行选择，则需扩展逻辑以处理多个选定行的情况[^2]。 - 数据验证应考虑单元格为空或其他特殊情况的可能性，防止潜在异常发生。