private void dgvCart_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            if (dgvCart.CurrentRow != null)
            {
                var value = dgvCart.Rows[dgvCart.CurrentRow.Index].Cells[0].Value.ToString().ToUpper();

                if (clsClose_Other_Forms.IMS_IsFormOpen("frmStudentsUpdates") == false)
                {
                    frmStudentsUpdates studentUpdate;
                    if (value.Equals("BARCODE") || value.Equals("EMAIL") || value.Equals("PHONE NO") || value.Equals("NIC NO"))
                    {
                        studentUpdate = new frmStudentsUpdates(MainScreen, selectedStudentId, true, value, false);
                    }
                    else
                    {
                        studentUpdate = new frmStudentsUpdates(MainScreen, selectedStudentId, false, value, false);
                    }
                    studentUpdate.ShowDialog();
                    studentUpdate.BringToFront();

                    AddDataToDetailsPanel();
                    AddRegisteredSubjects();
                }
            }
        }
        private void button3_Click(object sender, EventArgs e)
        {
            if (clsClose_Other_Forms.IMS_IsFormOpen("frmStudentsUpdates") == false)
            {
                frmStudentsUpdates studentUpdate = new frmStudentsUpdates(MainScreen, -1, false, "", true);

                studentUpdate.ShowDialog();
                studentUpdate.BringToFront();
                setDgvQuery();
                Add_Details_to_Datagridview(DgvQuery);
            }
        }
        private void button3_Click(object sender, EventArgs e)
        {
            if (clsClose_Other_Forms.IMS_IsFormOpen("frmStudentsUpdates") == false)
            {
                frmStudentsUpdates studentUpdate = new frmStudentsUpdates(MainScreen, selectedStudentId, false, "", false);

                studentUpdate.ShowDialog();
                studentUpdate.BringToFront();

                AddDataToDetailsPanel();
                AddRegisteredSubjects();
            }
        }