protected void ddlUnit_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (ddlUnit.SelectedValue == "-Select-")
            {
                clearInfo();
                ddlUnit.Focus();
                BtnSubmit.Visible = true;
                BtnUpdate.Visible = false;
            }

            try
            {
                if (ddlUnit.SelectedValue != "-Select-")
                {
                    int        code   = Converter.GetInteger(ddlUnit.SelectedValue);
                    A2ZUNITDTO getDTO = (A2ZUNITDTO.GetInformation(code));
                    if (getDTO.UnitNo > 0)
                    {
                        hdnGrpCode.Text = Converter.GetString(getDTO.UnitNo);

                        txtDescription.Text = Converter.GetString(getDTO.UnitDesc);
                        txtDescription.Focus();
                        BtnSubmit.Visible = false;
                        BtnUpdate.Visible = true;
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        protected void BtnSubmit_Click(object sender, EventArgs e)
        {
            try
            {
                if (txtDescription.Text != string.Empty)
                {
                    gvDetail();
                    gvDetailInfo.Visible = false;

                    int totrec = gvDetailInfo.Rows.Count;

                    int lastGrpCode = (totrec + 1);


                    if (lastGrpCode < 10)
                    {
                        hdnGrpCode.Text = Converter.GetString("0" + lastGrpCode);
                    }

                    A2ZUNITDTO objDTO = new A2ZUNITDTO();

                    objDTO.UnitNo = Converter.GetInteger(hdnGrpCode.Text);

                    objDTO.UnitDesc = Converter.GetString(txtDescription.Text);

                    int roweffect = A2ZUNITDTO.InsertInformation(objDTO);
                    if (roweffect > 0)
                    {
                        UnitDropdown();
                        clearInfo();
                        BtnUpdate.Visible = false;
                        BtnSubmit.Visible = true;
                        gvDetail();
                        gvDetailInfo.Visible = false;
                        txtDescription.Text  = string.Empty;
                        txtDescription.Focus();
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        protected void BtnUpdate_Click(object sender, EventArgs e)
        {
            if (ddlUnit.SelectedValue != "-Select-")
            {
                A2ZUNITDTO UpDTO = new A2ZUNITDTO();
                UpDTO.UnitNo = Converter.GetInteger(hdnGrpCode.Text);

                UpDTO.UnitDesc = Converter.GetString(txtDescription.Text);
                int roweffect = A2ZUNITDTO.UpdateInformation(UpDTO);
                if (roweffect > 0)
                {
                    UnitDropdown();
                    clearInfo();
                    BtnUpdate.Visible = false;
                    BtnSubmit.Visible = true;
                    gvDetail();
                    gvDetailInfo.Visible = false;
                    txtDescription.Text  = string.Empty;
                    txtDescription.Focus();
                }
            }
        }