private void btn_tambah_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            var frm = new FrmBarangAdd()
            {
                Text = "Tambah Data Barang"
            };

            Helpers.Generic.ShowAdd(this, frm);
        }
        private void btn_perbaiki_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            var index = gridView1.GetSelectedRows();
            var frm   = new FrmBarangAdd()
            {
                Text      = "Perbaiki Data Barang",
                kd_barang = gridView1.GetRowCellValue(index[0], "kd_barang").ToString()
            };

            Helpers.Generic.ShowAdd(this, frm);
        }