DataGridView中CheckBox实现某一列单选的代码

private void dgvChannel_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == -1 || e.RowIndex == -1) return;
int x = dgvChannel.CurrentCell.ColumnIndex;//获取鼠标的点击列
if (x == 0)//点击第一列是单选。
{
for (int i = 0; i < dgvChannel.Rows.Count; i++)
{
DataGridViewCheckBoxCell checkcell = (DataGridViewCheckBoxCell)dgvChannel.Rows[i].Cells[0];
checkcell.Value = false;
}
DataGridViewCheckBoxCell ifcheck = (DataGridViewCheckBoxCell)dgvChannel.Rows[e.RowIndex].Cells[0];
ifcheck.Value = true;
}
}