private void BeginProductAddMode()
{
SelecedProductId = -1;
txtName.Text = string.Empty;
txtDescription.Text = string.Empty;
txtDisplayTextInStock.Text = string.Empty;
txtDisplayTextWhenbackOrder.Text = string.Empty;
txtShortDescription.Text = string.Empty;
txtTags.Text = string.Empty;
cddlSupplier.SelectedValue = cddlSupplier.PromptValue;
txtEAN13.Text = string.Empty;
txtUpc.Text = string.Empty;
txtLocation.Text = string.Empty;
cbIsDownloadable.Checked = false;
cbDisplayOnSaleIcon.Checked = false;
txtInitialStock.Text = string.Empty;
txtMinimumQuantity.Text = string.Empty;
txtAdditionalShippingCost.Text = string.Empty;
cddlManufacturar.SelectedValue = cddlManufacturar.PromptValue;
cbIsEnabled.Checked = false;
cddlTax.SelectedValue = cddlTax.PromptValue;
txtSizeChart.Text = string.Empty;
btnUpdateProduct.Visible = false;
btnSaveProduct.Visible = true;
btnSaveAndStay.Visible = true;
btnSaveOtherLanguageProduct.Visible = false;
ucPortalLanguage.SelectedLanguageID = -1;
liProductCatalog.Visible = false;
liProductFeature.Visible = false;
liProductImage.Visible = false;
liProductPrice.Visible = false;
liCombinationProduct.Visible = false;
dvProductCatalog.Visible = false;
dvProductFeature.Visible = false;
dvProductImage.Visible = false;
dvProductPrice.Visible = false;
dvCombinationProduct.Visible = false;
}