private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
x = "stu";
z = comboBox1.Text;
textBox3.Visible = true;
textBox3.ReadOnly = true;
textBox3.Text = z;
textBox4.Visible = false;
textBox5.Visible = false;
label6.Visible = false;
label4.Visible = true;
label5.Visible = false;
label4.Text = "Stage";
label3.Text = "Id";
dt.Clear();
if (z != null)
{
dt = stu.get(z);
}
dataGridView1.DataSource = dt;
textBox1.Text = " ";
textBox2.Text = " ";
textBox3.Text = " ";
textBox4.Text = " ";
textBox5.Text = " ";
}
public lectures(string prf, string lec, string Stage, string end)
{
prname = prf;
lecname = lec;
stage = Stage;
END = end;
InitializeComponent();
timer2.Start();
closeToolStripMenuItem.Enabled = false;
activateToolStripMenuItem.Enabled = false;
allStudentsToolStripMenuItem.Enabled = false;
// axAcroPDF1.Visible = false;
dt.Clear();
if (stage != null)
{
dt = s.get(stage);
dataGridView1.DataSource = dt;
}
dt2.Clear();
dt2.Columns.Add("Name", typeof(string));
dt2.Columns.Add("Id", typeof(string));
dt2.Columns.Add("Stage", typeof(string));
}