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[ASP.net教程]分享我基于NPOI+ExcelReport实现的导入与导出EXCEL类库:ExcelUtility (续2篇


自ExcelUtility类推出以来,经过项目中的实际使用与不断完善,现在又做了许多的优化并增加了许多的功能,本篇不再讲述原理,直接贴出示例代码以及相关的模板、结果图,以便大家快速掌握,另外这些示例说明我也已同步到GIT中,大家可以下载与学习,不足之处,敬请见谅,谢谢!

一、ExcelUtility类库操作说明(模板导出示例)

1.

    /// <summary>    /// 测试方法:测试依据模板+DataTable来生成EXCEL    /// </summary>    [TestMethod]    public void TestExportToExcelWithTemplateByDataTable()    {      DataTable dt = GetDataTable();//获取数据      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xlsx"; //获得EXCEL模板路径      SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//实例化一个局部元素格式化器      partFormatterBuilder.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员      formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//实例化一个单元格格式化器      cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期      formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      //实例化一个表格格式化器,dt.Select()是将DataTable转换成DataRow[],name表示的模板表格中第一行第一个单元格要填充的数据参数名      TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(dt.Select(), "name");      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{        {"name",r=>r["Col1"]},//将模板表格中name对应DataTable中的列Col1        {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2        {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3        {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4        {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5      });      formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers);      Assert.IsTrue(File.Exists(excelPath));    }

模板如下:

导出结果如下:

 

2.

    /// <summary>    /// 测试方法:测试依据模板+List来生成EXCEL    /// </summary>    [TestMethod]    public void TestExportToExcelWithTemplateByList()    {      List<Student> studentList = GetStudentList();//获取数据      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xlsx"; //获得EXCEL模板路径      SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//实例化一个局部元素格式化器      partFormatterBuilder.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员      formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//实例化一个单元格格式化器      cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期      formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      //实例化一个表格格式化器,studentList本身就是可枚举的无需转换,name表示的模板表格中第一行第一个单元格要填充的数据参数名      TableFormatterBuilder<Student> tableFormatterBuilder = new TableFormatterBuilder<Student>(studentList, "name");      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<Student, object>>{        {"name",r=>r.Name},//将模板表格中name对应Student对象中的属性Name        {"sex",r=>r.Sex},//将模板表格中sex对应Student对象中的属性Sex        {"km",r=>r.KM},//将模板表格中km对应Student对象中的属性KM        {"score",r=>r.Score},//将模板表格中score对应Student对象中的属性Score        {"result",r=>r.Result}//将模板表格中result对应Student对象中的属性Result      });      formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers);      Assert.IsTrue(File.Exists(excelPath));    }

模板同上一个模板

导出结果如下:

 

3.

    /// <summary>    /// 测试方法:测试依据模板+DataTable来生成多表格EXCEL(注意:由于ExcelReport框架限制,目前仅支持模板文件格式为:xls)    /// </summary>    [TestMethod]    public void TestExportToRepeaterExcelWithTemplateByDataTable()    {      DataTable dt = GetDataTable();//获取数据      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel2.xls"; //获得EXCEL模板路径      SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      //实例化一个可重复表格格式化器,dt.Select()是将DataTable转换成DataRow[],rpt_begin表示的模板表格开始位置参数名,rpt_end表示的模板表格结束位置参数名      RepeaterFormatterBuilder<DataRow> tableFormatterBuilder = new RepeaterFormatterBuilder<DataRow>(dt.Select(), "rpt_begin", "rpt_end");      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{        {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2        {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3        {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4        {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5      });      PartFormatterBuilder<DataRow> partFormatterBuilder2 = new PartFormatterBuilder<DataRow>();//实例化一个可嵌套的局部元素格式化器      partFormatterBuilder2.AddFormatter("name", r => r["Col1"]);//将模板表格中name对应DataTable中的列Col1      tableFormatterBuilder.AppendFormatterBuilder(partFormatterBuilder2);//添加到可重复表格格式化器中,作为其子格式化器      CellFormatterBuilder<DataRow> cellFormatterBuilder = new CellFormatterBuilder<DataRow>();//实例化一个可嵌套的单元格格式化器      cellFormatterBuilder.AddFormatter("rptdate", r => DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期      tableFormatterBuilder.AppendFormatterBuilder(cellFormatterBuilder);//添加到可重复表格格式化器中,作为其子格式化器      formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "multtable", formatterContainers);      Assert.IsTrue(File.Exists(excelPath));    }

模板如下:

导出结果如下:

 

4.

    /// <summary>    /// 测试方法:测试依据复杂模板(含固定表格,可重复表格)+DataTable来生成EXCEL (注意:由于ExcelReport框架限制,目前仅支持模板文件格式为:xls)    /// </summary>    [TestMethod]    public void TestExportToExcelWithTemplateByList2()    {      var schoolLevelList = SchoolLevel.GetList();      var classList = ClassInfo.GetList();      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb.xls"; //获得EXCEL模板路径      SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();      partFormatterBuilder.AddFormatter("school", "跨越小学");      formatterContainers.AppendFormatterBuilder(partFormatterBuilder);      TableFormatterBuilder<SchoolLevel> tableFormatterBuilder = new TableFormatterBuilder<SchoolLevel>(schoolLevelList, "lv");//实例化一个表格格式化器      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<SchoolLevel, object>>      {        {"lv",r=>r.LevelName}, //模板参数与数据源SchoolLevel属性对应关系,下同        {"clscount",r=>r.ClassCount},        {"lvmaster",r=>r.Master}      });      formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      RepeaterFormatterBuilder<ClassInfo> repeaterFormatterBuilder = new RepeaterFormatterBuilder<ClassInfo>(classList, "lv_begin", "lv_end");//实例化一个可重复表格格式化器      repeaterFormatterBuilder.AddFormatters(new Dictionary<string, Func<ClassInfo, object>> {         {"class",r=>r.ClassName}, //模板参数与数据源ClassInfo属性对应关系,下同        {"stucount",r=>r.StudentCount},        {"clsmaster",r=>r.Master},        {"lvitem",r=>r.LevelName}      });      formatterContainers.AppendFormatterBuilder(repeaterFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "school", formatterContainers);      Assert.IsTrue(File.Exists(excelPath));    }

模板如下:

导出结果如下:

 

5.

    /// <summary>    /// 测试方法:测试依据复杂模板(含固定表格,可重复表格中嵌套表格)+DataTable来生成EXCEL (注意:由于ExcelReport框架限制,目前仅支持模板文件格式为:xls)    /// </summary>    [TestMethod]    public void TestExportToExcelWithTemplateByList3()    {      var schoolLevelList = SchoolLevel.GetList();      var classList = ClassInfo.GetListWithLevels();      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb1.xls"; //获得EXCEL模板路径      SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();      partFormatterBuilder.AddFormatter("school", "跨越小学");      formatterContainers.AppendFormatterBuilder(partFormatterBuilder);      TableFormatterBuilder<SchoolLevel> tableFormatterBuilder = new TableFormatterBuilder<SchoolLevel>(schoolLevelList, "lv");//实例化一个表格格式化器      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<SchoolLevel, object>>      {        {"lv",r=>r.LevelName}, //模板参数与数据源SchoolLevel属性对应关系,下同        {"clscount",r=>r.ClassCount},        {"lvmaster",r=>r.Master}      });      formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      RepeaterFormatterBuilder<KeyValuePair<string, List<ClassInfo>>> repeaterFormatterBuilder = new RepeaterFormatterBuilder<KeyValuePair<string, List<ClassInfo>>>(classList, "lv_begin", "lv_end");      repeaterFormatterBuilder.AddFormatter("lvitem",r=>r.Key);       TableFormatterBuilder<KeyValuePair<string, List<ClassInfo>>,ClassInfo> tableFormatterBuilder2=new TableFormatterBuilder<KeyValuePair<string, List<ClassInfo>>,ClassInfo>(r=>r.Value,"class");      tableFormatterBuilder2.AddFormatter("class",r=>r.ClassName);      tableFormatterBuilder2.AddFormatter("stucount",r=>r.StudentCount);      tableFormatterBuilder2.AddFormatter("clsmaster",r=>r.Master);      repeaterFormatterBuilder.AppendFormatterBuilder(tableFormatterBuilder2);      formatterContainers.AppendFormatterBuilder(repeaterFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "school", formatterContainers);      Assert.IsTrue(File.Exists(excelPath));    }

模板如下:

导出结果如下:

 

6.

    /// <summary>    /// 测试方法:测试依据复杂模板(多工作薄,且含固定表格,可重复表格)+DataSet来生成EXCEL,只支持XLS    /// </summary>    [TestMethod]    public void TestExportToExcelWithTemplateByDataSet()    {      var ds = GetDataSet();      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb2.xls"; //获得EXCEL模板路径      Dictionary<string, SheetFormatterContainer> formatterContainerDic = new Dictionary<string, SheetFormatterContainer>(); //实例化一个模板数据格式化容器数组,包含两个SheetFormatterContainer用于格式化两个工作薄      #region 创建第一个工作薄格式化容器,并设置相关参数对应关系      SheetFormatterContainer formatterContainer1 = new SheetFormatterContainer();      PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();      partFormatterBuilder.AddFormatter("school", "跨越小学");      formatterContainer1.AppendFormatterBuilder(partFormatterBuilder);      TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(ds.Tables[0].Select(), "lv");//实例化一个表格格式化器      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>      {        {"lv",r=>r["Col1"]}, //模板参数与数据源DataTable属性对应关系,下同        {"clscount",r=>r["Col2"]},        {"lvmaster",r=>r["Col3"]}      });      formatterContainer1.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      RepeaterFormatterBuilder<DataRow> repeaterFormatterBuilder = new RepeaterFormatterBuilder<DataRow>(ds.Tables[1].Select(), "lv_begin", "lv_end");//实例化一个可重复表格格式化器      repeaterFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>> {         {"class",r=>r["Col1"]}, //模板参数与数据源ClassInfo属性对应关系,下同        {"stucount",r=>r["Col2"]},        {"clsmaster",r=>r["Col3"]},        {"lvitem",r=>r["Col4"]}      });      formatterContainer1.AppendFormatterBuilder(repeaterFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      formatterContainerDic.Add("table1", formatterContainer1);//添加到工作薄格式容器数组中,注意此处的Key值为模板上工作薄的名称,此处即为:table1      #endregion      #region 创建第二个工作薄格式化容器,并设置相关参数对应关系      SheetFormatterContainer formatterContainer2 = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      PartFormatterBuilder partFormatterBuilder2 = new PartFormatterBuilder();//实例化一个局部元素格式化器      partFormatterBuilder2.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员      formatterContainer2.AppendFormatterBuilder(partFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加进去了才会生效      CellFormatterBuilder cellFormatterBuilder2 = new CellFormatterBuilder();//实例化一个单元格格式化器      cellFormatterBuilder2.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期      formatterContainer2.AppendFormatterBuilder(cellFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加进去了才会生效      //实例化一个表格格式化器,dt.Select()是将DataTable转换成DataRow[],name表示的模板表格中第一行第一个单元格要填充的数据参数名      TableFormatterBuilder<DataRow> tableFormatterBuilder2 = new TableFormatterBuilder<DataRow>(ds.Tables[2].Select(), "name");      tableFormatterBuilder2.AddFormatters(new Dictionary<string, Func<DataRow, object>>{        {"name",r=>r["Col1"]},//将模板表格中name对应DataTable中的列Col1        {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2        {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3        {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4        {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5      });      formatterContainer2.AppendFormatterBuilder(tableFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加进去了才会生效      formatterContainerDic.Add("table2", formatterContainer2);//添加到工作薄格式容器数组中,注意此处的Key值为模板上工作薄的名称,此处即为:table2      #endregion      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, formatterContainerDic);      Assert.IsTrue(File.Exists(excelPath));    }

模板如下:

    

导出结果如下:

   

 

二、ExcelUtility类库操作说明(嵌入图片示例)

一、 制作模板(含图片)
1. 制作模板的文件格式需为兼容格式,即:xls或xlt;
2. 模板变量(或称为占位符)定义与之前相同,即:$[变量名];
3. 图片变量定义如下:
a) 绘制一个图形,图形形状尽可能的与要显示的图片相同,比如:印章,则可绘制一个圆形;
b) 图形必需是透明背景,边框可要可不要,建议留着,这样后续调整比较方便,如下图中的蓝色透明背景圆形:

c) 图形大小尽可能与要显示的图片大小相同,如下图示:

 

由于EXCEL上大小默认采用厘米,而图片一般采用像素,所以需要自己换算一下像素对应的厘米数(也可将EXCEL计算单位设为像素,方法自行网上查找);也可网上下载单位转换工具
另外图形属性建议设置成如下图:

温馨提示:图形形状、属性若未设置一般不影响导出效果,但不排除其它异常情况,图形大小是一定要设置,且尽可能与要显示图形大小(高、宽)相同,否则有可能造成导出变形

代码示例:

  /// <summary>    /// 测试方法:测试依据模板+DataTable+图片来生成包含图片的EXCEL,只支持XLS    /// </summary>    [TestMethod]    public void TestInsertPic()    {      DataTable dt = GetDataTable();//获取数据      string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xls"; //获得EXCEL模板路径      SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器      PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//实例化一个局部元素格式化器      partFormatterBuilder.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员d      formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//实例化一个单元格格式化器      cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期      formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      //实例化一个表格格式化器,dt.Select()是将DataTable转换成DataRow[],name表示的模板表格中第一行第一个单元格要填充的数据参数名      TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(dt.Select(), "name");      tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{        {"name",r=>r["Col1"]},//将模板表格中name对应DataTable中的列Col1        {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2        {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3        {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4        {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5      });      formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效      string picPath = AppDomain.CurrentDomain.BaseDirectory + "\\tz.png";//图片路径      PictureWithShapeFormatterBuilder pictureBuilder = new PictureWithShapeFormatterBuilder();//实例化一个图片关联图形格式化器      //pictureBuilder.AddFormatter(picPath);//当sheet中只有一个图形时,我们可以省略指定区域,那么默认就是把整个工作薄区域当成一个寻找图形区域,若sheet中包含多个,则应指定区域,替换成如下语句      pictureBuilder.AddFormatter(picPath,5,60000, 0, 3, false);//第一个参数为图片路径,中间4个参数为数字型指定图形寻找的工作薄区域(行索引,列索引,索引从0开始计),最后一个为是否自适应大小,一般不建议使用,除非压缩图片      formatterContainers.AppendFormatterBuilder(pictureBuilder);      string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers);      Assert.IsTrue(File.Exists(excelPath));    }

模板如下:

注意图片若需要为透明背景格式,则必需使用PNG格式,NPOI支持的图片主要格式有:PNG,JPG

导出结果如下:

温馨提示:
pictureBuilder.AddFormatter(picPath);//当sheet中只有一个图形时,我们可以省略指定区域,那么默认就是把整个工作薄区域当成一个寻找图形区域,若sheet中包含多个,则应指定区域,替换成如下语句
pictureBuilder.AddFormatter(picPath,5,60000, 0, 3, false);//第一个参数为图片路径,中间4个参数为数字型指定图形寻找的工作薄区域(行索引(起止),列索引(起止),索引从0开始计),最后一个为是否自适应大小,一般不建议使用,除非压缩图片


如果图形可能随单元格进行位置调整,那么在指定图形区域时需注意,如果图形会随单元格下移,那么结束行索引(MinRow)就需要指定一个可能的最大值或不指定,如果图形会随单元格右移,那么结束列索引(MinColumn)就需要指定一个可能的最大值或不指定,如果存在多个图形区域,则上述情况都必需给定具体值(可能的最大值),以免造成区域交叉,从而导致图片显示不正确,如下示例:

//图形可能下移,可能右移,那么将结束行设为可能最大值:60000,结束列设为可能最大值:255
pictureBuilder.AddFormatter(picPath, 5, 60000, 0, 255, false);

//此处只指定开始行与开始列,与上面差不多,但建议使用上面的用法
pictureBuilder.AddFormatter(new PictureWithShapeInfo(picPath, new SheetRange() {MinRow=5,MinColumn=0 },false));

 

特别说明:

1.本类库是基于NPOI+ExcelReport,所有功能凡我的类库能够实现的,NPOI与ExcelReport都可以实现,只是用法及复杂程度不同而矣,我封装的目的就是为了降低大家的学习难度,提高使用效率,免费且开源,源代码同步更新至开源社区的GIT目录中,具体地址请看我该系列之前的文章有列出,在此就不再说明。

2.上述图片关联图形显示功能我是在ExcelReport基础上增加了一个PictureWithShapeFormatter类及其相关的类:PictureWithShapeInfo、SheetRange,因没有关联GIT,所以是在本地更新的,这几个类的代码如下:

PictureWithShapeFormatter:

using NPOI.Extend;using NPOI.HSSF.UserModel;using NPOI.SS.UserModel;using NPOI.XSSF.UserModel;using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ExcelReport{  public class PictureWithShapeFormatter : ElementFormatter  {    private PictureWithShapeInfo PictureInfo = null;    public PictureWithShapeFormatter(PictureWithShapeInfo pictureInfo)    {      this.PictureInfo = pictureInfo;    }    public override void Format(SheetAdapter sheetAdapter)    {      var sheet = sheetAdapter.CurrentSheet;      var shapes = PictureInfo.GetShapes(sheet);      bool isCompatible = false;      if (sheet is HSSFSheet)      {        isCompatible = true;      }      if (shapes == null || shapes.Count <= 0)      {        throw new Exception(string.Format("未能获取到工作薄[{0}]指定区域的图形对象列表!", sheet.SheetName));      }      byte[] bytes = System.IO.File.ReadAllBytes(PictureInfo.FilePath);      int pictureIdx = -1;      IDrawing drawing = null;      IClientAnchor anchor = null;      if (isCompatible)      {        var shape = shapes[0] as HSSFShape;        anchor = shape.Anchor as IClientAnchor;        drawing = shape.Patriarch;        shape.LineStyle = LineStyle.None;      }      else      {        var shape = shapes[0] as XSSFShape;        anchor = shape.GetAnchor() as IClientAnchor;        drawing = shape.GetDrawing();        shape.LineStyle = LineStyle.None;      }      pictureIdx = sheet.Workbook.AddPicture(bytes, PictureInfo.PictureType);      var picture = drawing.CreatePicture(anchor, pictureIdx);      if (PictureInfo.AutoSize)      {        picture.Resize();      }    }  }}

PictureWithShapeInfo、SheetRange:

using NPOI.SS.UserModel;using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using NPOI.HSSF.UserModel;using NPOI.XSSF.UserModel;using NPOI.Extend;namespace ExcelReport{  /// <summary>  /// 图片关联图形信息  /// 作者:Zuowenjun  /// </summary>  public class PictureWithShapeInfo  {    private SheetRange _SheetRange = new SheetRange();    public string FilePath { get; set; }    public PictureType PictureType { get; set; }    public SheetRange ShapeRange    {      get { return _SheetRange; }      set      {        if (value != null)        {          _SheetRange = value;        }      }    }    public bool AutoSize { get; set; }    public PictureWithShapeInfo()    { }    public PictureWithShapeInfo(string filePath, SheetRange shapeRange = null, bool autoSize = false)    {      this.FilePath = filePath;      this.ShapeRange = shapeRange;      this.AutoSize = autoSize;      this.PictureType = GetPictureType(filePath);    }    public List<object> GetShapes(ISheet sheet)    {      List<object> shapeAllList = new List<object>();      var shapeContainer = sheet.DrawingPatriarch;      if (sheet is HSSFSheet)      {        var shapeContainerHSSF = sheet.DrawingPatriarch as HSSFShapeContainer;        if (null != shapeContainer)        {          var shapeList = shapeContainerHSSF.Children;          foreach (var shape in shapeList)          {            if (shape is HSSFShape && shape.Anchor is HSSFClientAnchor)            {              var anchor = shape.Anchor as HSSFClientAnchor;              if (IsInternalOrIntersect(ShapeRange.MinRow, ShapeRange.MaxRow, ShapeRange.MinColumn, ShapeRange.MaxColumn, anchor.Row1, anchor.Row2, anchor.Col1, anchor.Col2, true))              {                shapeAllList.Add(shape);              }            }          }        }      }      else      {        var documentPartList = (sheet as XSSFSheet).GetRelations();        foreach (var documentPart in documentPartList)        {          if (documentPart is XSSFDrawing)          {            var drawing = (XSSFDrawing)documentPart;            var shapeList = drawing.GetShapes();            foreach (var shape in shapeList)            {              var anchorResult = shape.GetAnchor();              if (shape is XSSFShape && anchorResult is XSSFClientAnchor)              {                var anchor = anchorResult as XSSFClientAnchor;                if (IsInternalOrIntersect(ShapeRange.MinRow, ShapeRange.MaxRow, ShapeRange.MinColumn, ShapeRange.MaxColumn, anchor.Row1, anchor.Row2, anchor.Col1, anchor.Col2, true))                {                  shapeAllList.Add(shape);                }              }            }          }        }      }      return shapeAllList;    }    private PictureType GetPictureType(string filePath)    {      string ext = Path.GetExtension(filePath).ToUpper();      switch (ext)      {        case ".JPG": { return PictureType.JPEG; }        case ".PNG": { return PictureType.PNG; }        default: { return PictureType.None; }      }    }    private bool IsInternalOrIntersect(int? rangeMinRow, int? rangeMaxRow, int? rangeMinCol, int? rangeMaxCol,                    int pictureMinRow, int pictureMaxRow, int pictureMinCol, int pictureMaxCol, bool onlyInternal)    {      int _rangeMinRow = rangeMinRow ?? pictureMinRow;      int _rangeMaxRow = rangeMaxRow ?? pictureMaxRow;      int _rangeMinCol = rangeMinCol ?? pictureMinCol;      int _rangeMaxCol = rangeMaxCol ?? pictureMaxCol;      if (onlyInternal)      {        return (_rangeMinRow <= pictureMinRow && _rangeMaxRow >= pictureMaxRow &&            _rangeMinCol <= pictureMinCol && _rangeMaxCol >= pictureMaxCol);      }      else      {        return ((Math.Abs(_rangeMaxRow - _rangeMinRow) + Math.Abs(pictureMaxRow - pictureMinRow) >= Math.Abs(_rangeMaxRow + _rangeMinRow - pictureMaxRow - pictureMinRow)) &&        (Math.Abs(_rangeMaxCol - _rangeMinCol) + Math.Abs(pictureMaxCol - pictureMinCol) >= Math.Abs(_rangeMaxCol + _rangeMinCol - pictureMaxCol - pictureMinCol)));      }    }  }  /// <summary>  /// 工作薄区域  /// 作者:Zuowenjun  /// </summary>  public class SheetRange  {    public int? MinRow { get; set; }    public int? MaxRow { get; set; }    public int? MinColumn { get; set; }    public int? MaxColumn { get; set; }    public SheetRange()    { }    public SheetRange(int minRow, int maxRow, int minColumn, int maxColumn)    {      this.MinRow = minRow;      this.MaxRow = maxRow;      this.MinColumn = minColumn;      this.MaxColumn = maxColumn;    }    public override bool Equals(object obj)    {      bool equalResult = false;      equalResult = base.Equals(obj);      if (!equalResult)      {        var otherSheetRange = obj as SheetRange;        if (otherSheetRange != null)        {          equalResult = (this.MinRow <= otherSheetRange.MinRow && this.MaxRow >= otherSheetRange.MaxRow            && this.MinColumn <= otherSheetRange.MinColumn && this.MaxColumn >= otherSheetRange.MaxColumn);        }      }      return equalResult;    }    public override int GetHashCode()    {      return this.ToString().GetHashCode();    }    public override string ToString()    {      return string.Format("MinRow:{0},MaxRow:{1},MinColumn:{2},MaxColumn:{3}", this.MinRow, this.MaxRow, this.MinColumn, this.MaxColumn);    }  }}

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