如何使用 Excel 对象将 DataGridView 数据导出到 Excel

转载出处：https://code.msdn.microsoft.com/How-to-insert-image-into-93964561

本项目阐述如何使用 Open XML SDK 将图像插入到 Excel 中

简介

本示例演示如何使用 Open XML SDK 将图像自动插入到电子表格中。一些客户经常在 MSDN 论坛上咨询此问题，但是 MSDN 上并不存在示例。因此，如果 MSDN 中存在此示例，客户将可以从此示例中获取帮助。

客户证明：

http://social.msdn.microsoft.com/Forums/zh-CN/oxmlsdk/thread/4c369c2f-72ed-4e86-9c62-ff606d29ace2

http://social.msdn.microsoft.com/Forums/zh-CN/oxmlsdk/thread/5c60076e-9884-4298-a443-c97d941cf09d

http://stackoverflow.com/questions/5793950/c-sharp-openxml-insert-an-image-into-an-excel-document

生成项目

在 Visual Studio 2013 中打开项目 (InsertImageIntoExcel.csproj) 并生成项目。

class Utility 
    { 
        public static void CreatePackage(string sFile, string imageFileName) 
        { 
            try 
            { 
                // Create a spreadsheet document by supplying the filepath. 
                SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(sFile, SpreadsheetDocumentType.Workbook); 
 
                // Add a WorkbookPart to the document. 
                WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart(); 
                workbookpart.Workbook = new Workbook(); 
 
                // Add a WorksheetPart to the WorkbookPart. 
                WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>(); 
                worksheetPart.Worksheet = new Worksheet(new SheetData()); 
 
                // Add Sheets to the Workbook. 
                Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets()); 
 
                // Append a new worksheet and associate it with the workbook. 
                Sheet sheet = new Sheet() 
                { 
                    Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), 
                    SheetId = 1, 
                    Name = "mySheet" 
                }; 
                sheets.Append(sheet); 
 
                var drawingsPart = worksheetPart.AddNewPart<DrawingsPart>(); 
 
                if (!worksheetPart.Worksheet.ChildElements.OfType<Drawing>().Any()) 
                { 
                    worksheetPart.Worksheet.Append(new Drawing { Id = worksheetPart.GetIdOfPart(drawingsPart) }); 
                } 
 
                if (drawingsPart.WorksheetDrawing == null) 
                { 
                    drawingsPart.WorksheetDrawing = new WorksheetDrawing(); 
                } 
 
                var worksheetDrawing = drawingsPart.WorksheetDrawing; 
 
                var imagePart = drawingsPart.AddImagePart(ImagePartType.Jpeg); 
 
                using (var stream = new FileStream(imageFileName, FileMode.Open)) 
                { 
                    imagePart.FeedData(stream); 
                } 
 
                Bitmap bm = new Bitmap(imageFileName); 
                DocumentFormat.OpenXml.Drawing.Extents extents = new DocumentFormat.OpenXml.Drawing.Extents(); 
                var extentsCx = (long)bm.Width * (long)((float)914400 / bm.HorizontalResolution); 
                var extentsCy = (long)bm.Height * (long)((float)914400 / bm.VerticalResolution); 
                bm.Dispose(); 
 
                var colOffset = 0; 
                var rowOffset = 0; 
                int colNumber = 5; 
                int rowNumber = 10; 
 
                var nvps = worksheetDrawing.Descendants<Xdr.NonVisualDrawingProperties>(); 
                var nvpId = nvps.Count() > 0 ? 
                    (UInt32Value)worksheetDrawing.Descendants<Xdr.NonVisualDrawingProperties>().Max(p => p.Id.Value) + 1 : 
                    1U; 
 
                var oneCellAnchor = new Xdr.OneCellAnchor( 
                    new Xdr.FromMarker 
                    { 
                        ColumnId = new Xdr.ColumnId((colNumber - 1).ToString()), 
                        RowId = new Xdr.RowId((rowNumber - 1).ToString()), 
                        ColumnOffset = new Xdr.ColumnOffset(colOffset.ToString()), 
                        RowOffset = new Xdr.RowOffset(rowOffset.ToString()) 
                    }, 
                    new Xdr.Extent { Cx = extentsCx, Cy = extentsCy }, 
                    new Xdr.Picture( 
                        new Xdr.NonVisualPictureProperties( 
                            new Xdr.NonVisualDrawingProperties { Id = nvpId, Name = "Picture " + nvpId, Description = imageFileName }, 
                            new Xdr.NonVisualPictureDrawingProperties(new A.PictureLocks { NoChangeAspect = true }) 
                        ), 
                        new Xdr.BlipFill( 
                            new A.Blip { Embed = drawingsPart.GetIdOfPart(imagePart), CompressionState = A.BlipCompressionValues.Print }, 
                            new A.Stretch(new A.FillRectangle()) 
                        ), 
                        new Xdr.ShapeProperties( 
                            new A.Transform2D( 
                                new A.Offset { X = 0, Y = 0 }, 
                                new A.Extents { Cx = extentsCx, Cy = extentsCy } 
                            ), 
                            new A.PresetGeometry { Preset = A.ShapeTypeValues.Rectangle } 
                        ) 
                    ), 
                    new Xdr.ClientData() 
                ); 
 
                worksheetDrawing.Append(oneCellAnchor); 
 
                workbookpart.Workbook.Save(); 
 
                // Close the document. 
                spreadsheetDocument.Close(); 
            } 
            catch (Exception ex) 
            { 
                Console.WriteLine(ex.Message); 
            } 
        } 
    } 

运行示例

1. 本示例使用 Open XML SDK 将图像插入到 Excel 文件中。
2. 将图像文件 SampleImage.jpg 从项目位置复制到可执行文件位置。
3. 运行可执行文件‘InsertImageIntoExcel.exe’。此操作将创建一个名为‘InsertImage .xlsx’的 Excel 文件并将指定的图像插入到新工作表中。
4. 打开 Excel 文件 InsertImage.xlsx 并验证内容

从项目中复制出来的代码：

 Program.cs文件中的代码

//****************************** Module Header ******************************
//Module Name:    Program.cs
//Project:        InsertImageIntoExcel
//Copyright (c) Microsoft Corporation

//The project illustrates how to insert image into Excel using Open XML SDK

//This source is subject to the Microsoft Public License.
//See http://www.microsoft.com/en-us/openness/resources/licenses.aspx#MPL.
//All other rights reserved.

//*****************************************************************************/
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Drawing;

namespace InsertImageIntoExcel
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                string appPath = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);

                string sFile = appPath + "\InsertImage.xlsx";

                string imageFile = appPath + "\SampleImage.jpg";

                // If the file exists, delete it
                if (File.Exists(sFile))
                {
                    File.Delete(sFile);
                }

                Utility.CreatePackage(sFile, imageFile);
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

 Utility.cs中的代码

//****************************** Module Header ******************************
//Module Name:    Utility.cs
//Project:        InsertImageIntoExcel
//Copyright (c) Microsoft Corporation

//The project illustrates how to insert image into Excel using Open XML SDK

//This source is subject to the Microsoft Public License.
//See http://www.microsoft.com/en-us/openness/resources/licenses.aspx#MPL.
//All other rights reserved.

//*****************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml.Packaging;
using System.IO;
using DocumentFormat.OpenXml.Drawing.Spreadsheet;
using Xdr = DocumentFormat.OpenXml.Drawing.Spreadsheet;
using A = DocumentFormat.OpenXml.Drawing;
using System.Drawing;

namespace InsertImageIntoExcel
{
    class Utility
    {
        public static void CreatePackage(string sFile, string imageFileName)
        {
            try
            {
                // Create a spreadsheet document by supplying the filepath.
                SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(sFile, SpreadsheetDocumentType.Workbook);

                // Add a WorkbookPart to the document.
                WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
                workbookpart.Workbook = new Workbook();

                // Add a WorksheetPart to the WorkbookPart.
                WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
                worksheetPart.Worksheet = new Worksheet(new SheetData());

                // Add Sheets to the Workbook.
                Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.
                    AppendChild<Sheets>(new Sheets());

                // Append a new worksheet and associate it with the workbook.
                Sheet sheet = new Sheet()
                {
                    Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
                    SheetId = 1,
                    Name = "mySheet"
                };
                sheets.Append(sheet);

                var drawingsPart = worksheetPart.AddNewPart<DrawingsPart>();

                if (!worksheetPart.Worksheet.ChildElements.OfType<Drawing>().Any())
                {
                    worksheetPart.Worksheet.Append(new Drawing { Id = worksheetPart.GetIdOfPart(drawingsPart) });
                }

                if (drawingsPart.WorksheetDrawing == null)
                {
                    drawingsPart.WorksheetDrawing = new WorksheetDrawing();
                }

                var worksheetDrawing = drawingsPart.WorksheetDrawing;

                var imagePart = drawingsPart.AddImagePart(ImagePartType.Jpeg);

                using (var stream = new FileStream(imageFileName, FileMode.Open))
                {
                    imagePart.FeedData(stream);
                }

                Bitmap bm = new Bitmap(imageFileName);
                DocumentFormat.OpenXml.Drawing.Extents extents = new DocumentFormat.OpenXml.Drawing.Extents();
                var extentsCx = (long)bm.Width * (long)((float)914400 / bm.HorizontalResolution);
                var extentsCy = (long)bm.Height * (long)((float)914400 / bm.VerticalResolution);
                bm.Dispose();

                var colOffset = 0;
                var rowOffset = 0;
                int colNumber = 5;
                int rowNumber = 10;

                var nvps = worksheetDrawing.Descendants<Xdr.NonVisualDrawingProperties>();
                var nvpId = nvps.Count() > 0 ?
                    (UInt32Value)worksheetDrawing.Descendants<Xdr.NonVisualDrawingProperties>().Max(p => p.Id.Value) + 1 :
                    1U;

                var oneCellAnchor = new Xdr.OneCellAnchor(
                    new Xdr.FromMarker
                    {
                        ColumnId = new Xdr.ColumnId((colNumber - 1).ToString()),
                        RowId = new Xdr.RowId((rowNumber - 1).ToString()),
                        ColumnOffset = new Xdr.ColumnOffset(colOffset.ToString()),
                        RowOffset = new Xdr.RowOffset(rowOffset.ToString())
                    },
                    new Xdr.Extent { Cx = extentsCx, Cy = extentsCy },
                    new Xdr.Picture(
                        new Xdr.NonVisualPictureProperties(
                            new Xdr.NonVisualDrawingProperties { Id = nvpId, Name = "Picture " + nvpId, Description = imageFileName },
                            new Xdr.NonVisualPictureDrawingProperties(new A.PictureLocks { NoChangeAspect = true })
                        ),
                        new Xdr.BlipFill(
                            new A.Blip { Embed = drawingsPart.GetIdOfPart(imagePart), CompressionState = A.BlipCompressionValues.Print },
                            new A.Stretch(new A.FillRectangle())
                        ),
                        new Xdr.ShapeProperties(
                            new A.Transform2D(
                                new A.Offset { X = 0, Y = 0 },
                                new A.Extents { Cx = extentsCx, Cy = extentsCy }
                            ),
                            new A.PresetGeometry { Preset = A.ShapeTypeValues.Rectangle }
                        )
                    ),
                    new Xdr.ClientData()
                );

                worksheetDrawing.Append(oneCellAnchor);

                workbookpart.Workbook.Save();

                // Close the document.
                spreadsheetDocument.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

//****************************** Module Header ******************************
//Module Name:    Utility.cs
//Project:        InsertImageIntoExcel
//Copyright (c) Microsoft Corporation

//The project illustrates how to insert image into Excel using Open XML SDK

//This source is subject to the Microsoft Public License.
//See http://www.microsoft.com/en-us/openness/resources/licenses.aspx#MPL.
//All other rights reserved.

//*****************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml.Packaging;
using System.IO;
using DocumentFormat.OpenXml.Drawing.Spreadsheet;
using Xdr = DocumentFormat.OpenXml.Drawing.Spreadsheet;
using A = DocumentFormat.OpenXml.Drawing;
using System.Drawing;

namespace InsertImageIntoExcel
{
    class Utility
    {
        public static void CreatePackage(string sFile, string imageFileName) //sFile指的是InsertImage.xlsx的路径；imageFileName指的是SampleImage.jpg路径
        {
            try
            {
                SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(sFile, SpreadsheetDocumentType.Workbook);//从指定的文件创建SpreadsheetDocument 类的一个新实例
                WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart(); //为SpreadsheetDocument添加Workbookpart
                workbookpart.Workbook = new Workbook();
                WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();//为WookBookPart添加WorksheetPart
                worksheetPart.Worksheet = new Worksheet(new SheetData());
                Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());//为WorkBook添加Sheets
                //追加一个worksheet新实例并连接到workbook
                Sheet sheet = new Sheet()
                {
                    Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
                    SheetId = 1,
                    Name = "mySheet"
                };
                sheets.Append(sheet);
                var drawingsPart = worksheetPart.AddNewPart<DrawingsPart>();
                if (!worksheetPart.Worksheet.ChildElements.OfType<Drawing>().Any())
                {
                    worksheetPart.Worksheet.Append(new Drawing { Id = worksheetPart.GetIdOfPart(drawingsPart) });
                }

                if (drawingsPart.WorksheetDrawing == null)
                {
                    drawingsPart.WorksheetDrawing = new WorksheetDrawing();
                }

                var worksheetDrawing = drawingsPart.WorksheetDrawing;
                var imagePart = drawingsPart.AddImagePart(ImagePartType.Jpeg);
                using (var stream = new FileStream(imageFileName, FileMode.Open))
                {
                    imagePart.FeedData(stream);
                }

                Bitmap bm = new Bitmap(imageFileName);
                DocumentFormat.OpenXml.Drawing.Extents extents = new DocumentFormat.OpenXml.Drawing.Extents();
                var extentsCx = (long)bm.Width * (long)((float)914400 / bm.HorizontalResolution);
                var extentsCy = (long)bm.Height * (long)((float)914400 / bm.VerticalResolution);
                bm.Dispose();

                var colOffset = 0;
                var rowOffset = 0;
                int colNumber = 5;
                int rowNumber = 10;

                var nvps = worksheetDrawing.Descendants<Xdr.NonVisualDrawingProperties>();
                var nvpId = nvps.Count() > 0 ?
                    (UInt32Value)worksheetDrawing.Descendants<Xdr.NonVisualDrawingProperties>().Max(p => p.Id.Value) + 1 :
                    1U;

                var oneCellAnchor = new Xdr.OneCellAnchor(
                    new Xdr.FromMarker
                    {
                        ColumnId = new Xdr.ColumnId((colNumber - 1).ToString()),
                        RowId = new Xdr.RowId((rowNumber - 1).ToString()),
                        ColumnOffset = new Xdr.ColumnOffset(colOffset.ToString()),
                        RowOffset = new Xdr.RowOffset(rowOffset.ToString())
                    },
                    new Xdr.Extent { Cx = extentsCx, Cy = extentsCy },
                    new Xdr.Picture(
                        new Xdr.NonVisualPictureProperties(
                            new Xdr.NonVisualDrawingProperties { Id = nvpId, Name = "Picture " + nvpId, Description = imageFileName },
                            new Xdr.NonVisualPictureDrawingProperties(new A.PictureLocks { NoChangeAspect = true })
                        ),
                        new Xdr.BlipFill(
                            new A.Blip { Embed = drawingsPart.GetIdOfPart(imagePart), CompressionState = A.BlipCompressionValues.Print },
                            new A.Stretch(new A.FillRectangle())
                        ),
                        new Xdr.ShapeProperties(
                            new A.Transform2D(
                                new A.Offset { X = 0, Y = 0 },
                                new A.Extents { Cx = extentsCx, Cy = extentsCy }
                            ),
                            new A.PresetGeometry { Preset = A.ShapeTypeValues.Rectangle }
                        )
                    ),
                    new Xdr.ClientData()
                );

                worksheetDrawing.Append(oneCellAnchor);
                workbookpart.Workbook.Save();
                spreadsheetDocument.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

Open Xml 创建Excel并插入数据

转载地址：http://www.cnblogs.com/sshoub/archive/2012/08/28/2660152.html

private static void CreateSpreadSheet()
        {
            string fileName = "E:\01.xlsx";
            string sheetName = "test";

            using (SpreadsheetDocument spreadSheet = SpreadsheetDocument.Create(fileName, SpreadsheetDocumentType.Workbook))
            {
                // create the workbook  
                spreadSheet.AddWorkbookPart();
                spreadSheet.WorkbookPart.Workbook = new Workbook();     // create the worksheet  
                spreadSheet.WorkbookPart.AddNewPart<WorksheetPart>();
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet = new Worksheet();
                SharedStringTablePart m_SharedStringTablePart = spreadSheet.WorkbookPart.AddNewPart<SharedStringTablePart>();

                // create sheet data  
                SheetData m_SheetData = new SheetData();
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.AppendChild(m_SheetData);

                // create row  
                //spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.First().AppendChild(new Row());
                //// create cell with data  
                //spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.First().First().AppendChild(new Cell() { CellValue = new CellValue("100") });

                //Add Data
                Row row1 = new Row() { RowIndex = 1 };


                
                Cell cell1 = new Cell() { CellReference = "A1" };
                int index = InsertSharedStringItem("Sun", m_SharedStringTablePart);
                cell1.CellValue = new CellValue(index.ToString());
                cell1.DataType = new EnumValue<CellValues>(CellValues.SharedString);


                
                row1.Append(cell1);
                m_SheetData.Append(row1);

                // save worksheet  
                spreadSheet.WorkbookPart.WorksheetParts.First().Worksheet.Save();

                // create the worksheet to workbook relation  
                spreadSheet.WorkbookPart.Workbook.AppendChild(new Sheets());
                spreadSheet.WorkbookPart.Workbook.GetFirstChild<Sheets>().AppendChild(new Sheet()
                {
                    Id = spreadSheet.WorkbookPart.GetIdOfPart(spreadSheet.WorkbookPart.WorksheetParts.First()),
                    SheetId = 1,
                    Name = sheetName
                });

                spreadSheet.WorkbookPart.Workbook.Save();
            }
        }

        private static int InsertSharedStringItem(string text, SharedStringTablePart shareStringPart)
        {
            // If the part does not contain a SharedStringTable, create one.
            if (shareStringPart.SharedStringTable == null)
            {
                shareStringPart.SharedStringTable = new SharedStringTable();
                shareStringPart.SharedStringTable.Count = 1;
                shareStringPart.SharedStringTable.UniqueCount = 1;
            }

            int i = 0;
            // Iterate through all the items in the SharedStringTable. If the text already exists, return its index.
            foreach (SharedStringItem item in shareStringPart.SharedStringTable.Elements<SharedStringItem>())
            {
                if (item.InnerText == text)
                {
                    return i;
                }
                i++;
            }

            // The text does not exist in the part. Create the SharedStringItem and return its index.
            shareStringPart.SharedStringTable.AppendChild(new SharedStringItem(new DocumentFormat.OpenXml.Spreadsheet.Text(text)));
            shareStringPart.SharedStringTable.Save();

            return i;
        }

Excel 数据读入到DataSet

转载地址：http://www.cnblogs.com/tianjinquan/p/3972346.html

using System;
using System.Collections.Generic;
using System.Linq;
using System.Data;
using System.IO;
using System.Xml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml;

namespace ECLink.Common
{
    /// <summary>
    /// 采用openxml方式把excel转换成DataSet
    /// </summary>
    public class ExcelHelper
    {
        public ExcelHelper()
        {

        }
        /// <summary>
        /// 将Excel多单一表转化为DataSet数据集对象
        /// </summary>
        /// <param name="filePath">Excel文件路径</param>
        /// <returns>转化的数据集</returns>
        public  DataSet ExcelToDataSet(string filePath)
        {
            DataSet dataSet = new DataSet();
            try
            {
                using (SpreadsheetDocument spreadDocument = SpreadsheetDocument.Open(filePath, false))
                {
                    //指定WorkbookPart对象
                    WorkbookPart workBookPart = spreadDocument.WorkbookPart;
                    //获取Excel中SheetName集合
                    List<string> sheetNames = GetSheetNames(workBookPart);

                    foreach (string sheetName in sheetNames)
                    {
                        DataTable dataTable = WorkSheetToTable(workBookPart, sheetName);
                        if (dataTable != null)
                        {
                            dataSet.Tables.Add(dataTable);//将表添加到数据集
                        }
                    }
                }
            }
            catch (Exception exp)
            {
                throw new Exception("可能Excel正在打开中,请关闭重新操作！");
            }
            return dataSet;
        }

        /// <summary>
        /// 根据WorkbookPart和表名创建DataTable对象
        /// </summary>
        /// <param name="workBookPart">WorkbookPart对象</param>
        /// <param name="tableName">表名</param>
        /// <returns>转化后的DataTable</returns>
        public DataTable WorkSheetToTable(WorkbookPart workBookPart, string sheetName)
        {
            //创建Table
            DataTable dataTable = new DataTable(sheetName);

            //根据WorkbookPart和sheetName获取该Sheet下所有行数据
            IEnumerable<Row> sheetRows = GetWorkBookPartRows(workBookPart, sheetName);
            IEnumerable<Column> sheetColumns = GetWorkBookPartColumns(workBookPart, sheetName);

            if (sheetRows == null || sheetRows.Count() <= 0)
            {
                return null;
            }

            SharedStringTable stringTable = workBookPart.SharedStringTablePart.SharedStringTable;
            //将数据导入DataTable,假定第一行为列名,第二行以后为数据
            foreach (Row row in sheetRows)
            {
                //获取Excel中的列头
                if (row.RowIndex == 1)
                {
                    GetDataColumn(row, stringTable, ref dataTable);
                }
                else
                {
                    GetDataRow(row, stringTable, ref dataTable);
                }
            }
            return dataTable;
        }
 
        /// <summary>
        /// 根据WorkbookPart获取所有SheetName
        /// </summary>
        /// <param name="workBookPart"></param>
        /// <returns>SheetName集合</returns>
        private List<string> GetSheetNames(WorkbookPart workBookPart)
        {
            List<string> sheetNames = new List<string>();
            Sheets sheets = workBookPart.Workbook.Sheets;
            foreach (Sheet sheet in sheets)
            {
                string sheetName = sheet.Name;
                if (!string.IsNullOrEmpty(sheetName))
                {
                    sheetNames.Add(sheetName);
                }
            }
            return sheetNames;
        }

        /// <summary>
        /// 根据WorkbookPart和sheetName获取该Sheet下所有Row数据
        /// </summary>
        /// <param name="workBookPart">WorkbookPart对象</param>
        /// <param name="sheetName">SheetName</param>
        /// <returns>该SheetName下的所有Row数据</returns>
        public IEnumerable<Row> GetWorkBookPartRows(WorkbookPart workBookPart, string sheetName)
        {
            IEnumerable<Row> sheetRows = null;
            //根据表名在WorkbookPart中获取Sheet集合
            IEnumerable<Sheet> sheets = workBookPart.Workbook.Descendants<Sheet>().Where(s => s.Name == sheetName);
            if (sheets.Count() == 0)
            {
                return null;//没有数据
            }

            WorksheetPart workSheetPart = workBookPart.GetPartById(sheets.First().Id) as WorksheetPart;
            //获取Excel中得到的行
            sheetRows = workSheetPart.Worksheet.Descendants<Row>();
            return sheetRows;
        }

        /// <summary>
        /// 根据WorkbookPart和sheetName获取该Sheet下所有Row数据
        /// </summary>
        /// <param name="workBookPart">WorkbookPart对象</param>
        /// <param name="sheetName">SheetName</param>
        /// <returns>该SheetName下的所有Row数据</returns>
        public IEnumerable<Column> GetWorkBookPartColumns(WorkbookPart workBookPart, string sheetName)
        {
            IEnumerable<Column> sheetColumns = null;
            //根据表名在WorkbookPart中获取Sheet集合
            IEnumerable<Sheet> sheets = workBookPart.Workbook.Descendants<Sheet>().Where(s => s.Name == sheetName);
            if (sheets.Count() == 0)
            {
                return null;//没有数据
            }

            WorksheetPart workSheetPart = workBookPart.GetPartById(sheets.First().Id) as WorksheetPart;
            
            sheetColumns = workSheetPart.Worksheet.Descendants<Column>(); //获取Excel中得到的行

            return sheetColumns;
        }


        /// <summary>
        /// 获取Excel中多表的表名
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        private List<string> GetExcelSheetNames(string filePath)
        {
            string sheetName = string.Empty;
            List<string> sheetNames = new List<string>();//所有Sheet表名
            using (SpreadsheetDocument spreadDocument = SpreadsheetDocument.Open(filePath, false))
            {
                WorkbookPart workBook = spreadDocument.WorkbookPart;
                Stream stream = workBook.GetStream(FileMode.Open);
                XmlDocument xmlDocument = new XmlDocument();
                xmlDocument.Load(stream);

                XmlNamespaceManager xmlNSManager = new XmlNamespaceManager(xmlDocument.NameTable);
                xmlNSManager.AddNamespace("default", xmlDocument.DocumentElement.NamespaceURI);
                XmlNodeList nodeList = xmlDocument.SelectNodes("//default:sheets/default:sheet", xmlNSManager);

                foreach (XmlNode node in nodeList)
                {
                    sheetName = node.Attributes["name"].Value;
                    sheetNames.Add(sheetName);
                }
            }
            return sheetNames;
        }

        #region 采用openxml方式把excel转换成dataTable

        /// <summary>
        /// 构建DataTable的列
        /// </summary>
        /// <param name="row">OpenXML定义的Row对象</param>
        /// <param name="stringTablePart"></param>
        /// <param name="dt">须要返回的DataTable对象</param>
        /// <returns></returns>
        public void GetDataColumn(Row row, SharedStringTable stringTable, ref DataTable dt)
        {
            DataColumn col = new DataColumn();
            Dictionary<string, int> columnCount = new Dictionary<string, int>();
            foreach (Cell cell in row)
            {
                string cellVal = GetValue(cell, stringTable);
                col = new DataColumn(cellVal);
                if (IsContainsColumn(dt, col.ColumnName))
                {
                    if (!columnCount.ContainsKey(col.ColumnName))
                        columnCount.Add(col.ColumnName, 0);
                    col.ColumnName = col.ColumnName + (columnCount[col.ColumnName]++);
                }
                dt.Columns.Add(col);
            }
        }
        /// <summary>
        /// 构建DataTable的每一行数据,并返回该Datatable
        /// </summary>
        /// <param name="row">OpenXML的行</param>
        /// <param name="stringTablePart"></param>
        /// <param name="dt">DataTable</param>
        private void GetDataRow(Row row, SharedStringTable stringTable, ref DataTable dt)
        {
            // 读取算法：按行一一读取单位格,若是整行均是空数据
            DataRow dr = dt.NewRow();
            int i = 0;
            int nullRowCount = i;
            foreach (Cell cell in row)
            {
                string cellVal = GetValue(cell, stringTable);
                if (cellVal == string.Empty)
                {
                    nullRowCount++;
                }
                dr[i] = cellVal;
                i++;
            }
            if (nullRowCount != i)
            {
                dt.Rows.Add(dr);
            }
        }
        /// <summary>
        /// 获取单位格的值
        /// </summary>
        /// <param name="cell"></param>
        /// <param name="stringTablePart"></param>
        /// <returns></returns>
        private string GetValue(Cell cell, SharedStringTable stringTable)
        {
            //因为Excel的数据存储在SharedStringTable中,须要获取数据在SharedStringTable 中的索引
            string value = string.Empty;
            try
            {
                if (cell.ChildElements.Count == 0)
                    return value;
                value = double.Parse(cell.CellValue.InnerText).ToString();
                if ((cell.DataType != null) && (cell.DataType == CellValues.SharedString))
                {
                    value = stringTable.ChildElements[Int32.Parse(value)].InnerText;
                }
            }
            catch (Exception)
            {
                value = "N/A";
            }
            return value;
        }
        /// <summary>
        /// 判断网格是否存在列
        /// </summary>
        /// <param name="dt">网格</param>
        /// <param name="columnName">列名</param>
        /// <returns></returns>
        public bool IsContainsColumn(DataTable dt, string columnName)
        {
            if (dt == null || columnName == null)
            {
                return false;
            }
            return dt.Columns.Contains(columnName);
        }

        #endregion 

        #region SaveCell
        private void InsertTextCellValue(Worksheet worksheet, string column, uint row, string value)
        {
            Cell cell = ReturnCell(worksheet, column, row);
            CellValue v = new CellValue();
            v.Text = value;
            cell.AppendChild(v);
            cell.DataType = new EnumValue<CellValues>(CellValues.String);
            worksheet.Save();
        }
        private void InsertNumberCellValue(Worksheet worksheet, string column, uint row, string value)
        {
            Cell cell = ReturnCell(worksheet, column, row);
            CellValue v = new CellValue();
            v.Text = value;
            cell.AppendChild(v);
            cell.DataType = new EnumValue<CellValues>(CellValues.Number);
            worksheet.Save();
        }
        private static Cell ReturnCell(Worksheet worksheet, string columnName, uint row)
        {
            Row targetRow = ReturnRow(worksheet, row);

            if (targetRow == null)
                return null;

            return targetRow.Elements<Cell>().Where(c =>
               string.Compare(c.CellReference.Value, columnName + row,
               true) == 0).First();
        }
        private static Row ReturnRow(Worksheet worksheet, uint row)
        {
            return worksheet.GetFirstChild<SheetData>().
            Elements<Row>().Where(r => r.RowIndex == row).First();
        }
        #endregion
    }
}

 此代码示例使用 Open XML SDK 2.5 中的类来创建最小空白工作簿               

Imports DocumentFormat.OpenXml.Packaging
Imports DocumentFormat.OpenXml
Imports DocumentFormat.OpenXml.Spreadsheet
Module Module1

    Sub Main()
        CreateSpreadsheetWorkbook("D:00.xlsx")
    End Sub
    Public Sub CreateSpreadsheetWorkbook(ByVal filepath As String)
        ' Create a spreadsheet document by supplying the filepath.
        ' By default, AutoSave = true, Editable = true, and Type = xlsx.
        Dim spreadsheetDocument As SpreadsheetDocument = spreadsheetDocument.Create(filepath, SpreadsheetDocumentType.Workbook)

        ' Add a WorkbookPart to the document.
        Dim workbookpart As WorkbookPart = spreadsheetDocument.AddWorkbookPart
        workbookpart.Workbook = New Workbook

        ' Add a WorksheetPart to the WorkbookPart.
        Dim worksheetPart As WorksheetPart = workbookpart.AddNewPart(Of WorksheetPart)()
        worksheetPart.Worksheet = New Worksheet(New SheetData())

        ' Add Sheets to the Workbook.
        Dim sheets As Sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild(Of Sheets)(New Sheets())

        ' Append a new worksheet and associate it with the workbook.
        Dim sheet As Sheet = New Sheet
        sheet.Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart)
        sheet.SheetId = 1
        sheet.Name = "mySheet"
        sheets.Append(sheet)
        workbookpart.Workbook.Save()

        ' Close the document.
        spreadsheetDocument.Close()
    End Sub

End Module

重要电子表格部分                                     

---

              

            

通过使用 Open XML SDK 2.5 for Office，可以使用 SpreadsheetML 元素所对应的强类型类创建文档结构和内容。可以在 DocumentFormat.OpenXML.Spreadsheet 命名空间中找到这些类。下表列出了一些重要电子表格元素所对应类的类名称。                           

 

包部分	顶级 SpreadsheetML 元素	Open XML SDK 2.5 类	说明
工作簿	workbook	Workbook	主文档部件的根元素。
工作表	worksheet	Worksheet	表示包含文本、数字、日期或公式的单元格网格的工作表类型。有关详细信息，请参阅使用工作表。
图表工作表	chartsheet	Chartsheet	表示存储为自己的工作表的图表的工作表。有关详细信息，请参阅使用工作表。
表	table	Table	指定属于单个数据集的一系列数据的逻辑构造。有关详细信息，请参阅使用表格 (SpreadsheetML)。
数据透视表	pivotTableDefinition	PivotTableDefinition	显示可理解布局中数据的聚合视图的逻辑构造。有关详细信息，请参阅使用数据透视表 (Open XML SDK)。
透视缓存	pivotCacheDefinition	PivotCacheDefinition	定义数据透视表中的数据源的构造。有关详细信息，请参阅使用数据透视表 (Open XML SDK)。
透视缓存记录	pivotCacheRecords	PivotCacheRecords	数据透视表的源数据的缓存。有关详细信息，请参阅使用数据透视表 (Open XML SDK)。
计算链	calcChain	CalculationChain	指定上次计算工作簿中单元格的顺序的构造。有关详细信息，请参阅使用计算链 (Open XML SDK)。
共享字符串表	sst	SharedStringTable	包含每个唯一字符串在工作簿中的所有工作表上的出现次数的构造。有关详细信息，请参阅使用共享字符串表 (Open XML SDK)。
条件格式	conditionalFormatting	ConditionalFormatting	定义应用于一个单元格或一系列单元格的格式的构造。有关详细信息，请参阅使用条件格式设置 (Open XML SDK)。
公式	f	CellFormula	定义包含公式的单元格的公式文本的构造。有关详细信息，请参阅使用公式 (Open XML SDK)。