private void btnadd_Click(object sender, EventArgs e)
{
if (Class1.stuId != -1)
{
SqlConnection newcon1 = new SqlConnection(con);
newcon1.Open();
string qu = "update Student set FirstName='" + txtfname.Text.ToString() + "',LastName='" + txtlname.Text.ToString() + "' ,Contact='" + txtcontact.Text.ToString() + "',Email='" + txtemail.Text.ToString() + "',RegistrationNumber='" + txtregno.Text.ToString() + "' 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 Student(FirstName,LastName,Contact,Email,RegistrationNumber,Status) values('" + txtfname.Text.ToString() + "','" + txtlname.Text.ToString() + "','" + txtcontact.Text.ToString() + "','" + txtemail.Text.ToString() + "','" + txtregno.Text.ToString() + "',5)";
SqlCommand newcom = new SqlCommand(qu, newcon);
newcom.ExecuteNonQuery();
newcon.Close();
}
this.Hide();
ManageStudents addnew = new ManageStudents();
addnew.Show();
}
private void linkLabel1_LinkClicked_1(object sender, LinkLabelLinkClickedEventArgs e)
{
this.Hide();
ManageStudents addnew = new ManageStudents();
addnew.Show();
}