关键词：
1. install Select.HtmlToPdf.NetCore
2.in startup.cs
services.AddSingleton<IFileProvider>(
new PhysicalFileProvider(
Path.Combine(Directory.GetCurrentDirectory(), "wwwroot")));
3. in controller
#region write pdf
[HttpGet("WritePdf")]
[ProducesResponseType(typeof(ApiResponse), 200)]
[ProducesResponseType(typeof(ApiResponse), 400)]
public IActionResult WritePdf(int orderId, double gst, double priceExclGst, double discount, int userId)
try
var order = trojantradingDbContext.Orders.Where(x => x.Id == orderId).FirstOrDefault();
var cart = shoppingCartRepository.GetShoppingCartByID(order.ShoppingCartId, userId);
var currentUser = userRepository.GetUserByAccount(userId);
double priceIncGst = priceExclGst + gst;
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append("<!DOCTYPE html><html lang='en'><head><meta charset='utf-8'><style>");
stringBuilder.Append(".clearfix:aftercontent:'';display: table;clear: both; acolor: #5D6975;text-decoration: underline; bodyposition: relative;width: 21cm;height: 29.7cm;margin: 0 auto;color: #001028;background: #FFFFFF;font-family: Arial, sans-serif;font-size: 12px;");
stringBuilder.Append("headerpadding: 10px 0;margin-bottom: 30px;#logotext-align: center;margin-bottom: 10px; font-size: 2em#logo imgwidth: 90px;h1 border-top: 1px solid #5D6975;border-bottom: 1px solid #5D6975;color: #5D6975;font-size: 1.5em;line-height: 1.4em;font-weight: normal;text-align: center;margin: 0 0 20px 0;");
stringBuilder.Append("#project float: left; font-size: 18px#project span color: #5D6975;text-align:left;display: inline-block;font-size: 0.8em;#company float: right;text-align: right; font-size: 18px#company span color: #5D6975;text-align: right;display: inline-block;font-size: 0.8em;#project div,#company div white-space: nowrap;");
stringBuilder.Append("table width: 100%;border-collapse: collapse;border-spacing: 0;margin-bottom: 20px;table tr:nth-child(2n-1) td background: #F5F5F5;table th,table td text-align: center;white-space:pre-wrap;word-wrap:break-word;table th padding: 5px 20px;color: #5D6975;border-bottom: 1px solid #C1CED9;font-weight: normal;table .service,table .desc text-align: left;table tdpadding: 20px;text-align: right;table td.service,table td.desc vertical-align: top;table td.unit,table td.qty,table td.total font-size: 1.2em;table td.grand border-top: 1px solid #5D6975;");
stringBuilder.Append("#notices,#notices .notice color: #5D6975;font-size: 1.2em;footer font-size: 1.5em;color: #5D6975;width: 100%;height: 30px;position: absolute;bottom: 0;border-top: 1px solid #C1CED9;padding: 8px 0;text-align: center;");
stringBuilder.Append("</style></head>");
stringBuilder.Append("<body><header class='clearfix'><div id='logo'><p>Trojan Trading Company PTY LTD</p></div>");
stringBuilder.Append("<h1>Order #" + orderId + " for Customer " + currentUser.Account + "</h1>");
stringBuilder.Append("<div id='company' class='clearfix'><div>SHIPPING ADDRESS</div><div><span>ACCOUNT: </span>" + currentUser.Account + "</div><div><span>CUSTOMER: </span>" + currentUser.ShippingCustomerName + "</div><div><span>ADDRESS: </span>" + currentUser.ShippingStreetNumber + " " + currentUser.ShippingAddressLine + "</div><div>" + currentUser.ShippingSuburb + ", " + currentUser.ShippingState + ", " + currentUser.ShippingPostCode + "</div><div><span>EMAIL: </span> <a href='" + currentUser.Email + "' target='_blank'>" + currentUser.Email + "</a></div><div><span>PHONE: </span>" + currentUser.Phone + "</div></div>");
stringBuilder.Append("<div id='project'><div>BILLING ADDRESS</div><div><span>ACCOUNT: </span>" + currentUser.Account + "</div><div><span>CUSTOMER: </span>" + currentUser.BillingCustomerName + "</div><div><span>ADDRESS: </span>" + currentUser.BillingStreetNumber + " " + currentUser.BillingAddressLine + "</div><div>" + currentUser.BillingSuburb + ", " + currentUser.BillingState + ", " + currentUser.BillingPostCode + "</div><div><span>EMAIL: </span> <a href='" + currentUser.Email + "' target='_blank'>" + currentUser.Email + "</a></div><div><span>PHONE: </span>" + currentUser.Phone + "</div></div></header>");
stringBuilder.Append("<main><table><thead><tr><th class='service' style='width: 10%'>Item Code</th><th class='desc' style='width: 50%'>Product Name</th><th style='width: 10%'>Original Price ex.GST</th><th style='width: 10%'>Buy Price ex.GST</th><th style='width: 10%'>Order Qty</th><th style='width: 10%'>Line Amount ex.GST</th></tr></thead><tbody>");
foreach (var item in cart.ShoppingItems)
stringBuilder.Append("<tr><td class='service'>" + item.Product.ItemCode + "</td><td class='desc'>#" + item.Product.Id + " " + item.Product.Name + "dfsfdsfdsfdsfdsfdsfdsfsdfsdsadasdasdasdsadasdadasdasdassad</td><td class='total'>$" + item.Product.OriginalPrice + "</td>");
if (currentUser.Role.ToLower() == "agent")
stringBuilder.Append("<td class='unit'>$" + String.Format("0:0.00", item.Product.AgentPrice) + "</td>");
else if (currentUser.Role.ToLower() == "wholesaler")
stringBuilder.Append("<td class='unit'>$" + String.Format("0:0.00", item.Product.WholesalerPrice) + "</td>");
stringBuilder.Append("<td class='qty'>" + item.Amount + "</td>");
if (currentUser.Role.ToLower() == "agent")
stringBuilder.Append("<td class='total'>$" + String.Format("0:0.00", item.Product.AgentPrice * item.Amount) + "</td></tr>");
else if (currentUser.Role.ToLower() == "wholesaler")
stringBuilder.Append("<td class='total'>$" + String.Format("0:0.00", item.Product.WholesalerPrice * item.Amount) + "</td></tr>");
stringBuilder.Append("<tr><td colspan='5' style='text-align:right'> Payment Method</td><td class='total'>" + String.Format("0", cart.PaymentMethod == "onaccount" ? "On Account" : "Prepayment") + "</td></tr>");
stringBuilder.Append("<tr><td colspan='5' style='text-align:right'> Total Price Excl.GST</td><td class='total'>$" + String.Format("0:0.00", priceExclGst) + "</td></tr>");
stringBuilder.Append("<tr><td colspan='5' style='text-align:right'> GST</td><td class='total'>$" + String.Format("0:0.00", gst) + "</td></tr>");
stringBuilder.Append("<tr><td colspan='5' style='text-align:right'> Total Discount Earned</td><td class='total'>$" + String.Format("0:0.00", discount) + "</td></tr>");
stringBuilder.Append("<tr><td colspan='5' style='text-align:right' class='grand total'> Total Price Inc.GST</td><td class='grand total'>$" + String.Format("0:0.00", priceIncGst) + "</td></tr>");
stringBuilder.Append("</tbody></table>");
stringBuilder.Append("<div id='notices'><div>NOTICE:</div><div class='notice'>A finance charge of 1.5% will be made on unpaid balances after 30 days.</div></div>");
stringBuilder.Append("</main>");
stringBuilder.Append("<footer><a href='http://xxxxxxxx' target='_blank'>http://xxxxxxxx</a></footer>");
stringBuilder.Append("</body></html>");
string pdfBody = stringBuilder.ToString();
HtmlToPdf Renderer = new HtmlToPdf();
var path = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "order_" + orderId + ".pdf");
var pdf = Renderer.ConvertHtmlString(pdfBody);
MemoryStream stream = new MemoryStream();
pdf.Save(stream);
pdf.Close();
byte[] docBytes = stream.ToArray();
return File(docBytes, "application/pdf");
catch (Exception ex)
return Ok(new ApiResponse
Status = "fail",
Message = ex.Message
);
#endregion
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