protected void btnupdate_Click(object sender, EventArgs e)
    {
        clspassinggrade objpass = new clspassinggrade();

        objpass.ID             = Convert.ToInt32(Label9.Text);
        objpass.Name           = txtname.Text;
        objpass.EquivallentGPA = txtequiGpa.Text;
        objpass.Active         = Convert.ToInt32(chkstatus.Checked);
        objpass.executenonupdate_pass();

        //cmd = new SqlCommand("update PassingGrade set Name='"+txtname.Text+"' , EquivallentGPA='"+txtequiGpa.Text+"' , Active='"+chkstatus.Checked+"' where ID='"+Label9.Text+"' " ,con);
        //if (cmd.Connection.State.ToString() != "Open")
        //{
        //    con.Open();
        //}
        //cmd.ExecuteNonQuery();
        //con.Close();
        fillgrid();
        clear();

        btnupdate.Visible = false;
        btnsubmit.Visible = true;

        lblmessage.Text    = "Record updated successfully.";
        lblmessage.Visible = true;
        lbllegend.Text     = "";
        Panel1.Visible     = false;
        Button1.Visible    = true;
    }