private void btnEdit_Click(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show("Do you want to 'Edit' this records?", "Question", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

            if (result == DialogResult.Yes)
            {
                //Update Query
                dbContext.UpdatePatientOpticalLens(txtSerialNo.Text, cmbOLRS.Text, cmbOLRC.Text, cmbOLRA.Text, cmbOLRPD.Text,
                                                   cmbOLRADD.Text, cmbOLRPRISM.Text, cmbOLRBASE.Text, cmbOLROH.Text, cmbOLLS.Text, cmbOLLC.Text, cmbOLLA.Text,
                                                   cmbOLLPD.Text, cmbOLLADD.Text, cmbOLLPRISM.Text, cmbOLLBASE.Text, cmbOLLOH.Text);
                dbContext.UpdatePatientDoctors(txtSerialNo.Text, txtOpthometrist.Text, txtOptician.Text);
                dbContext.UpatePatientRemarks(txtSerialNo.Text, txtRemarks.Text);
                MessageBox.Show("Patient Optical Lens has been updated successfully!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.Close();
            }
        }