//修改
private void button2_Click(object sender, EventArgs e)
{
StudentInfoData data = new StudentInfoData();
data.Sno = txtSno1.Text;
data.Sname = txtSname1.Text;
data.Sex = txtSex1.Text;
data.Birthday = txtBirthday1.Text;
data.Classid = txtClass.Text;
data.Tel = txtTel1.Text;
data.Address = txtAddress1.Text;
Classes.StudentInfoOperation op = new Classes.StudentInfoOperation();
if (op.UpdateStudent(data))
{
MessageBox.Show("成功");
}
else
{
MessageBox.Show("失败了");
}
dataGridView1.DataSource = Bind().Tables[0];
}