无法将类型"string"隐式转换为"bool",求助,急-!!!
//排序
private void button6_Click(object sender, EventArgs e)
{
DataView dv = ds.Tables[0].DefaultView;
//这句代码怎么转型啊
dv.Sort = textBox9.Text + (comboBox1.SelectedItem.ToString() == "升序")? " asc" : " desc";
dataGridView1.DataSource = dv;
}