winform datagridview的checkbox 全选问题及批量删除数据

Question

想求一些这方面的源码，能详细点的，谢谢！

Answer 1

      private void checkBox1_CheckedChanged(object sender, EventArgs e)
      {
        foreach (DataGridViewRow dr in this.dgv_client.Rows)
        {
          dr.Cells["Column8"].Value = checkBox1.Checked;
        }
      }      private void bt_delete_Click(object sender, EventArgs e)
      {
        for (int i = dgv_client.Rows.Count - 1; i >= 0;i-- )
        {
          if (dgv_client.Rows[i].Cells["Column8"].Value == null)
          {
            continue;
          }
          if ((bool)dgv_client.Rows[i].Cells["Column8"].Value == true)
          {
            dgv_client.Rows.Remove(dgv_client.Rows[i]);
          }
        }
      }

Answer 2

for  或者 foreach  循环  都可以