我想你可以使用此代码用于从数据网格视图中删除选定的行。

I think you can use this code to remove a selected row from your data grid view.

if (dataGridView1.SelectedRows.Count > 0)
    dataGridView1.Rows.Remove(dataGridView1.SelectedRows[0]);

你也可以使用这一个

Hi ,
you can use also this one

protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
  {
      dt.Rows.RemoveAt(e.NewSelectedIndex);
      GridView1.DataSource = dt;
      GridView1.DataBind();
  }

if (dataGridView1.SelectedRows.Count > 0)
                   {
                       dataGridView1.Rows.Remove(dataGridView1.SelectedRows[0]);
                   }