c#datagridview

//保证显示当前活动单元格
this.Invoke(new Action(() =>
{
dataGridView1.CurrentCell = dataGridView1.Rows[index].Cells[0];
}));

//添加新行
index=dataGridView1.Rows.Add();
dataGridView1.Rows[index].Cells[0].Value = (index+1).ToString();//添加内容
dataGridView1.Rows[index].Cells[1].Value = ip;//添加内容
dataGridView1.Rows[index].Cells[2].Value = DateTime.Now.ToString("yyyy/MM/dd hh:mm:ss"); //添加内容

//表头自动序号
private void dataGridView1_RowPostPaint_1(object sender, DataGridViewRowPostPaintEventArgs e)
{
SolidBrush b = new SolidBrush(this.dataGridView1.RowHeadersDefaultCellStyle.ForeColor);
e.Graphics.DrawString((e.RowIndex + 1).ToString(System.Globalization.CultureInfo.CurrentUICulture), this.dataGridView1.DefaultCellStyle.Font, b, e.RowBounds.Location.X, e.RowBounds.Location.Y + 4);

}

/// <summary>
/// datagridview清除排序列表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void 清除排序列表ToolStripMenuItem1_Click(object sender, EventArgs e)
{
foreach (DataGridViewColumn column in dataGridView1.Columns)
{
column.SortMode = DataGridViewColumnSortMode.NotSortable;
column.SortMode = DataGridViewColumnSortMode.Automatic;
}
}

private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
try
{
//鼠标右键弹出菜单
if (e.Button == MouseButtons.Right)
{
if (e.RowIndex >= 0)
{
//若行已是选中状态就不再进行设置
if (dataGridView1.Rows[e.RowIndex].Selected == false)
{
dataGridView1.ClearSelection();
dataGridView1.Rows[e.RowIndex].Selected = true;
}
//只选中一行时设置活动单元格
if (dataGridView1.SelectedRows.Count == 1)
{
dataGridView1.CurrentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
}
//弹出操作菜单
contextMenuStrip1.Show(MousePosition.X, MousePosition.Y);
}
}
}
catch
{

}

}