private void button1_Click(object sender, EventArgs e)
{
if (textBox1.Text == "" || comboBox1.Text == "")
MessageBox.Show("提示：請輸入！", "警告");
else
{
if (this.comboBox1.Text == "學號")
{
string str = @"Data Source=lenovo-pc\sqlexpress;Initial catalog=用戶;integrated Security=True";
SqlConnection conn = new SqlConnection(str);
conn.Open();
string sql = "Delete from 成績資訊 where 學號 = '" + textBox1.Text + "'";
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Close();
}
}
}
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標籤：VB基礎類