private void btnadd_Click(object sender, EventArgs e)
{
if (Class1.stuId != -1)
{
SqlConnection newcon1 = new SqlConnection(con);
newcon1.Open();
string qu = "update ClassAttendance set AttendanceDate='" + dateTimePicker1.Value.Date + "' where Id='" + Class1.stuId + "'";
SqlCommand newcom = new SqlCommand(qu, newcon1);
newcom.ExecuteNonQuery();
newcon1.Close();
Class1.stuId = -1;
}
else
{
SqlConnection newcon = new SqlConnection(con);
newcon.Open();
string qu = "insert into ClassAttendance(AttendanceDate) values('" + dateTimePicker1.Value.Date + "')";
SqlCommand newcom = new SqlCommand(qu, newcon);
newcom.ExecuteNonQuery();
newcon.Close();
}
this.Hide();
ClassAttendance back = new ClassAttendance();
back.Show();
}
private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
this.Hide();
ClassAttendance bck = new ClassAttendance();
bck.Show();
}
private void linkLabel8_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
this.Hide();
ClassAttendance add = new ClassAttendance();
add.Show();
}