DataGridView 让光标上下移动 选择记录行

//向上移动一行
this.dataGridView1.CurrentCell = this.dataGridView1[this.dataGridView1.CurrentCell.ColumnIndex, this.dataGridView1.CurrentCell.RowIndex- 1];
//向下移动一行
this.dataGridView1.CurrentCell = this.dataGridView1[this.dataGridView1.CurrentCell.ColumnIndex, this.dataGridView1.CurrentCell.RowIndex + 1];