实现效果:

知识运用:
DataGridView控件的AllowUserToAddRows
AllowUserDeleteRows和ReadOnly属性
实现代码:
private void btn_no_Click(object sender, EventArgs e)
{
dataGridView1.AllowUserToAddRows = false;
dataGridView1.AllowUserToDeleteRows = false;
dataGridView1.ReadOnly = true;
}
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