Now that we know how to work with the Spreadsheet API, how to write to Cells and how to make Formulas, let’s build an invoice document.
Imagine our data model to be as follows:
public class Customer {
public string Name { get; set; }
public string Address1 { get; set; }
public string Address2 { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Zip { get; set; }
public string Phone { get; set; }
public List<Product> Products { get; set; }
}
public class Product {
public string Name { get; set; }
public int Quantity { get; set; }
public double Discount { get; set; }
public double Price { get; set; }
}Our goal is to create a Spreadsheet Invoice like this:
First thing, as you remember let’s new up a Workbook and set the defaults.
Workbook book = new Workbook(); // Setup document defaults... book.Styles.DefaultStyle.Font.Name = "Segoe UI"; book.Styles.DefaultStyle.Font.Size = 14;
This will be our mock customer:
Customer customer = new Customer() {
Name = "Alcorn Mickey",
Address1 = "Mickeys World of Fun",
Address2 = "436 1st Ave.",
City = "Cleveland",
State = "OH",
Zip = "37288",
Phone = "(203)290-8902"
};
customer.Products = new List<Product> {
new Product() { Name = "Chai", Price = 100, Quantity = 3, Discount = 0.1 },
new Product() { Name = "Chang", Price = 120, Quantity = 6, Discount = 0.15 },
};Add the billing info:
// Add Billing info...
book.Worksheets[0].Cells["B2"].Value = "BILL TO:";
book.Worksheets[0].Cells["B2"].Font.Bold = true;
book.Worksheets[0].Cells["B3"].Value = customer.Name;
book.Worksheets[0].Cells["B4"].Value = customer.Address1;
book.Worksheets[0].Cells["B5"].Value = customer.Address2;
book.Worksheets[0].Cells["B6"].Value = String.Format("{0} {1}, {2}", customer.City, customer.State, customer.Zip);
book.Worksheets[0].Cells["B7"].Value = String.Format("Phone: {0}", customer.Phone);Add the header:
// Add Header... book.Worksheets[0].Cells["B9"].Value = "Product"; book.Worksheets[0].Cells["C9"].Value = "Quantity"; book.Worksheets[0].Cells["D9"].Value = "Price"; book.Worksheets[0].Cells["E9"].Value = "Discount"; book.Worksheets[0].Cells["F9"].Value = "Due";
Format the entire header Range [B9:F9]:
// Format header... book.Worksheets[0].Range["B9:F9"].ColumnWidthInCharacters = 16; Formatting header = book.Worksheets[0].Range["B9:F9"].BeginUpdateFormatting(); header.Alignment.Horizontal = HorizontalAlignment.Right; header.Borders.BottomBorder.Color = Color.Black; header.Borders.BottomBorder.LineStyle = BorderLineStyle.Medium; header.Font.Bold = true; book.Worksheets[0].Range["B9:F9"].EndUpdateFormatting(header); // Product is left aligned... book.Worksheets[0].Cells["B9"].Alignment.Horizontal = HorizontalAlignment.Left;
For every Product in the list, create the line items:
const int start = 10;
// Add line items...
int row = start;
foreach(Product product in customer.Products) {
book.Worksheets[0].Cells["B" + row].Value = product.Name;
book.Worksheets[0].Cells["C" + row].Value = product.Quantity;
book.Worksheets[0].Cells["D" + row].Value = (double)product.Price;
book.Worksheets[0].Cells["D" + row].NumberFormat = "$#,##0.00";
book.Worksheets[0].Cells["E" + row].Value = (double)product.Discount;
book.Worksheets[0].Cells["E" + row].NumberFormat = "0%";
book.Worksheets[0].Cells["F" + row].Formula = String.Format("=C{0}*D{0}*(1-E{0})", row);
book.Worksheets[0].Cells["F" + row].NumberFormat = "$#,##0.00";
row++;
}Sum up the totals:
// Total...
book.Worksheets[0].Cells["E" + (row + 1)].Value = "Total:";
book.Worksheets[0].Cells["E" + (row + 1)].Alignment.Horizontal = HorizontalAlignment.Right;
book.Worksheets[0].Cells["E" + (row + 1)].Font.Bold = true;
book.Worksheets[0].Cells["F" + (row + 1)].Formula = String.Format("=SUM(F{0}:F{1})", start, row - 1);
book.Worksheets[0].Cells["F" + (row + 1)].NumberFormat = "$#,##0.00";
And we are done. We are now ready to save to a Spreadsheet document file or export it to a PDF.
book.ExportToPdf(@"Invoice.pdf");
Exporeted document:
Cheers
Azret