Export Excel files using npoi

Hello everyone , I meet you again , I'm your friend, Quan Jun .

Use NPOI export Excel file , This example uses ASP.NET MVC.

1、 Use NPOI export Excel file

example ： Export product list .

requirement ：1、 adopt NPOI Export product list information ;

2、 Use Excel Function to calculate the total amount of goods ;

stay Controllers Created in the controller directory ExportController.cs controller

using System.IO;
using NPOI;
using NPOI.POIFS;
using NPOI.HSSF;
using NPOI.Util;
using NPOI.HSSF.UserModel;
using NPOI.HPSF;
using NPOI.SS.UserModel;
using NPOI.SS.Util;
using NPOI.HSSF.Util;

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/// <summary>
///  Export product list 
/// </summary>
public FileResult ExportProduct()
{
    // Create a new xls file 
    HSSFWorkbook workbook = new HSSFWorkbook();

    // establish DocumentSummaryInformation（ optional ）
    DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
    dsi.Company = " Shenzhen e-commerce Co., Ltd ";
    dsi.Category = " report form ";
    // establish SummaryInformation（ optional ）
    SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
    si.Subject = " List of goods ";
    si.Title = " Product list Export ";
    si.Author = "Kevin Pan";
    // Assign the created object to Workbook
    workbook.DocumentSummaryInformation = dsi;
    workbook.SummaryInformation = si;

    // Create a Sheet
    ISheet sheet = workbook.CreateSheet("Sheet1");
    sheet.DefaultRowHeight = 300;
    // Create title 
    IRow rowTitle = sheet.CreateRow(0);
    rowTitle.Height = 500;
    ICellStyle styleTitle = workbook.CreateCellStyle();
    styleTitle.Alignment = HorizontalAlignment.Center;
    styleTitle.VerticalAlignment = VerticalAlignment.Center;
    IFont fontTitle = workbook.CreateFont();
    fontTitle.FontName = " Song style ";
    fontTitle.FontHeightInPoints = 18;
    styleTitle.SetFont(fontTitle);
    ICell cellTitle = rowTitle.CreateCell(0);
    cellTitle.SetCellValue(" List of goods ");
    cellTitle.CellStyle = styleTitle;
    sheet.AddMergedRegion(new CellRangeAddress(0, 0, 0, 5));  // merge cell 
    // Create a table style 
    IFont font = workbook.CreateFont();
    font.FontName = " Song style ";
    font.FontHeightInPoints = 10;
    ICellStyle style = workbook.CreateCellStyle(); ;
    style.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
    style.BottomBorderColor = HSSFColor.Black.Index;
    style.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
    style.LeftBorderColor = HSSFColor.Black.Index;
    style.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
    style.RightBorderColor = HSSFColor.Black.Index;
    style.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
    style.TopBorderColor = HSSFColor.Black.Index;
    style.Alignment = HorizontalAlignment.Center;
    style.SetFont(font);
    // Create header 
    IRow rowHead = sheet.CreateRow(1);
    rowHead.CreateCell(0).SetCellValue(" Serial number ");
    rowHead.GetCell(0).CellStyle = style;
    sheet.SetColumnWidth(0, 256 * 5);

    rowHead.CreateCell(1).SetCellValue(" Name of commodity ");
    rowHead.GetCell(1).CellStyle = style;
    sheet.SetColumnWidth(1, 256 * 25);

    rowHead.CreateCell(2).SetCellValue(" Brand of goods ");
    rowHead.GetCell(2).CellStyle = style;
    sheet.SetColumnWidth(2, 256 * 20);

    rowHead.CreateCell(3).SetCellValue(" commodity price ");
    rowHead.GetCell(3).CellStyle = style;
    sheet.SetColumnWidth(3, 256 * 15);

    rowHead.CreateCell(4).SetCellValue(" Number ");
    rowHead.GetCell(4).CellStyle = style;
    sheet.SetColumnWidth(3, 256 * 10);

    rowHead.CreateCell(5).SetCellValue(" Total sum ");
    rowHead.GetCell(5).CellStyle = style;
    sheet.SetColumnWidth(3, 256 * 15);

    // Get product list data 
    List<ProductModel> dataList = GetProductList();
    // Bind table contents 
    int rowindex = 2;
    int xh = 1;
    foreach (var item in dataList)
    {
        IRow rowContent = sheet.CreateRow(rowindex);
        rowContent.CreateCell(0).SetCellValue(xh);
        rowContent.GetCell(0).CellStyle = style;

        rowContent.CreateCell(1).SetCellValue(item.ProductName);
        rowContent.GetCell(1).CellStyle = style;

        rowContent.CreateCell(2).SetCellValue(item.ProductBrand);
        rowContent.GetCell(2).CellStyle = style;

        rowContent.CreateCell(3).SetCellValue(item.ProductPrice.ToString());
        rowContent.GetCell(3).CellStyle = style;

        rowContent.CreateCell(4).SetCellValue(item.Quantity.ToString());
        rowContent.GetCell(4).CellStyle = style;
        // Set function , Calculate the total amount 
        rowContent.CreateCell(5).SetCellFormula(String.Format("$D{0}*$E{0}", rowindex+1));
        rowContent.GetCell(5).CellStyle = style;

        rowindex++;
        xh++;
    }

    // Output  
    System.IO.MemoryStream ms = new System.IO.MemoryStream();
    workbook.Write(ms);
    ms.Seek(0, SeekOrigin.Begin);
    return File(ms, "application/vnd.ms-excel", " List of goods .xls");
}

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2、 be based on .xls Template export Excel file

example ： be based on .xls Template export order information （ Pictured 1）

requirement ：1、 Using a .xls Template export order information ;

2、 Use Excel Function to calculate the total amount of orders and goods ;

chart 1 be based on .xls Template export order information

/// <summary>
///  Export order information 
/// </summary>
public FileResult ExportOrder()
{ 
    // Get order information 
    OrderModel order = GetOrderInfo();
    // obtain Excel Templates 
    string fileName = AppDomain.CurrentDomain.SetupInformation.ApplicationBase + @"/Template/order.xls";
    FileStream file = new FileStream(fileName, FileMode.Open, FileAccess.Read);
    // Create a xls file 
    HSSFWorkbook workbook = new HSSFWorkbook(file);
    // obtain Sheet
    ISheet sheet = workbook.GetSheet("Sheet1");
    // Export order information 
    sheet.GetRow(1).CreateCell(1).SetCellValue(order.OrderNo);
    sheet.GetRow(1).CreateCell(3).SetCellValue(order.OrderTime.ToString("yyyy-MM-dd HH:mm:ss"));
    sheet.GetRow(1).CreateCell(5).SetCellFormula("SUM(F6:F100)"); // Set function , Calculate the total order amount 
    sheet.GetRow(2).CreateCell(1).SetCellValue(order.CustomName);
    sheet.GetRow(2).CreateCell(3).SetCellValue(order.CustomAddress);
    // Export product list 
    if (order.ProductList != null && order.ProductList.Count > 0)
    {
        // Create header 
        IRow rowHead = sheet.CreateRow(4);
        rowHead.CreateCell(0).SetCellValue(" Serial number ");
        sheet.SetColumnWidth(0, 256 * 15);

        rowHead.CreateCell(1).SetCellValue(" Name of commodity ");
        sheet.SetColumnWidth(1, 256 * 25);

        rowHead.CreateCell(2).SetCellValue(" Brand of goods ");
        sheet.SetColumnWidth(2, 256 * 20);

        rowHead.CreateCell(3).SetCellValue(" commodity price ");
        sheet.SetColumnWidth(3, 256 * 15);

        rowHead.CreateCell(4).SetCellValue(" Number ");
        sheet.SetColumnWidth(3, 256 * 10);

        rowHead.CreateCell(5).SetCellValue(" Total sum ");
        sheet.SetColumnWidth(3, 256 * 15);

        // Bind table contents 
        int rowindex = 5;
        int xh = 1;
        foreach (var item in order.ProductList)
        {
            IRow rowContent = sheet.CreateRow(rowindex);
            rowContent.CreateCell(0).SetCellValue(xh);
            rowContent.CreateCell(1).SetCellValue(item.ProductName);
            rowContent.CreateCell(2).SetCellValue(item.ProductBrand);
            rowContent.CreateCell(3).SetCellValue(item.ProductPrice.ToString());
            rowContent.CreateCell(4).SetCellValue(item.Quantity.ToString());
            rowContent.CreateCell(5).SetCellFormula(String.Format("$D{0}*$E{0}", rowindex + 1));  // Set function , Calculate the total amount 
            rowindex++;
            xh++;
        }
    }

    // Output  
    System.IO.MemoryStream ms = new System.IO.MemoryStream();
    workbook.Write(ms);
    ms.Seek(0, SeekOrigin.Begin);
    return File(ms, "application/vnd.ms-excel", " Order information .xls");
}

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3、 Other code

3.1 Entity class

stay Models Create in the model directory ProductModel.cs and OrderModel.cs Entity class

/// <summary>
///  Commodity information entity class 
/// </summary>
public class ProductModel
{
    /// <summary>
    ///  Name of commodity 
    /// </summary>
    public string ProductName { get; set; }

    /// <summary>
    ///  Brand of goods 
    /// </summary>
    public string ProductBrand { get; set; }

    /// <summary>
    ///  commodity price 
    /// </summary>
    public decimal ProductPrice { get; set; }

    /// <summary>
    ///  Number 
    /// </summary>
    public int Quantity { get; set; }
}

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/// <summary>
///  Order information entity class 
/// </summary>
public class OrderModel
{
    /// <summary>
    ///  The order no. 
    /// </summary>
    public string OrderNo { get; set; }

    /// <summary>
    ///  Order time 
    /// </summary>
    public DateTime OrderTime { get; set; }

    /// <summary>
    ///  Total sum 
    /// </summary>
    public decimal Amount { get; set; }

    /// <summary>
    ///  Customer name 
    /// </summary>
    public string CustomName { get; set; }

    /// <summary>
    ///  Customer address 
    /// </summary>
    public string CustomAddress { get; set; }

    /// <summary>
    ///  List of goods 
    /// </summary>
    public List<ProductModel> ProductList { get; set; }
}

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3.2 Get product and order data

/// <summary>
///  Get a list of products 
/// </summary>
public List<ProductModel> GetProductList()
{
    List<ProductModel> productList = new List<ProductModel>();
    ProductModel product1 = new ProductModel(){
        ProductName = " Apple IPhone6 mobile phone ",
        ProductBrand = " Apple ",
        ProductPrice = 4999,
        Quantity = 4
    };
    ProductModel product2 = new ProductModel()
    {
        ProductName = " Samsung smartphones ",
        ProductBrand = " samsung ",
        ProductPrice = 3800,
        Quantity = 3
    };
    ProductModel product3 = new ProductModel()
    {
        ProductName = " Panasonic LCD TV ",
        ProductBrand = " panasonic ",
        ProductPrice = 3800,
        Quantity = 2
    };
    productList.Add(product1);
    productList.Add(product2);
    productList.Add(product3);
    return productList;
}

/// <summary>
///  Get order information 
/// </summary>
public OrderModel GetOrderInfo()
{
    OrderModel order = new OrderModel() { 
        OrderNo = "P20140929001",
        OrderTime = DateTime.Now,
        CustomName = " Zhang San ",
        CustomAddress = " Luohu District, Shenzhen City, Guangdong Province ",
        ProductList = GetProductList()
    };
    return order;
}

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3.3 View

stay Views Create in the view directory Index.cshtml

<h2> Use NPOI Generate Excel file </h2>
<a href="@Url.Action("ExportProduct","Export")"> Export goods </a>
<a href="@Url.Action("ExportOrder","Export")"> Export order </a>

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