private void button8_Click(object sender, EventArgs e)
{
if (dataGridView1.SelectedRows[0].Cells["学号"].Value == null)
{
MessageBox.Show("请选择用户！");
}
else
{
string Unum = dataGridView1.SelectedRows[0].Cells["学号"].Value.ToString();
mem f = new mem();
f.str0 = Unum;
f.ShowDialog();
用户管理ToolStripMenuItem_Click(null, null);
}
}
private void button3_Click(object sender, EventArgs e)
{
string userid = textBox1.Text.Trim();
string userpw = textBox2.Text.Trim();
if (radioButton2.Checked == true)
{
try
{
Sql1 sqlHelper = new Sql1();
SqlConnection con = sqlHelper.GetConnection();
SqlCommand com = new SqlCommand("select Aid,Apwd from Administrators where Aid='" + userid + "' and Apwd='" + userpw + "'", con);
SqlDataAdapter da = new SqlDataAdapter(com);
DataSet ds = new DataSet();
int n = da.Fill(ds, "register");
if (n != 0)
{
memad f = new memad();
f.str0 = userid;
f.ShowDialog();
textBox1.Text = null;
textBox2.Text = null;
}
else
{
MessageBox.Show("请输入正确的账号和密码！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
textBox2.Text = null;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
else
{
try
{
Sql1 sqlHelper = new Sql1();
SqlConnection con = sqlHelper.GetConnection();
SqlCommand com = new SqlCommand("select Sid,Spwd from Students where Sid='" + userid + "' and Spwd='" + userpw + "'", con);
SqlDataAdapter da = new SqlDataAdapter(com);
DataSet ds = new DataSet();
int n = da.Fill(ds, "register");
if (n != 0)
{
mem f = new mem();
f.str0 = userid;
f.ShowDialog();
textBox1.Text = null;
textBox2.Text = null;
}
else
{
MessageBox.Show("请输入正确的账号和密码！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
textBox2.Text = null;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}