protected void txtProductName_OnTextChanged(object sender, EventArgs e)
{
objProductBiz = new ProductBiz();
objProduct = new Product();
objProduct = objProductBiz.AddProductDetailsForRP(txtReturnProductName.Text.Trim(), txtInvoiceNumber.Text.Trim());
txtReturnProductCode.Text = objProduct.ProductId.ToString();
txtPurchaseQuantity.Text = objProduct.PurchaseQuantity.ToString();
txtPrice.Text = objProduct.PurchasePrice.ToString();
txtReturnQuantity.Attributes.Add("onfocus", "this.select()");
txtReturnQuantity.Focus();
}
