自ExcelUtility類推出以來,經過項目中的實際使用與不斷完善,現在又做了許多的優化並增加了許多的功能,本篇不再講述原理,直接貼出示例代碼以及相關的模板、結果圖,以便大家快速掌握,另外這些示例說明我也已同步到GIT中,大家可以下載與學習,不足之處,敬請見諒,謝謝!
一、ExcelUtility類庫操作說明(模板導出示例)
1.
/// <summary> /// 測試方法:測試依據模板+DataTable來生成EXCEL /// </summary> [TestMethod] public void TestExportToExcelWithTemplateByDataTable() { DataTable dt = GetDataTable();//獲取數據 string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xlsx"; //獲得EXCEL模板路徑 SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//實例化一個局部元素格式化器 partFormatterBuilder.AddFormatter("Title", "跨越IT學員");//將模板表格中Title的值設置為跨越IT學員 formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//實例化一個單元格格式化器 cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//將模板表格中rptdate的值設置為當前日期 formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 //實例化一個表格格式化器,dt.Select()是將DataTable轉換成DataRow[],name表示的模板表格中第一行第一個單元格要填充的數據參數名 TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(dt.Select(), "name"); tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{ {"name",r=>r["Col1"]},//將模板表格中name對應DataTable中的列Col1 {"sex",r=>r["Col2"]},//將模板表格中sex對應DataTable中的列Col2 {"km",r=>r["Col3"]},//將模板表格中km對應DataTable中的列Col3 {"score",r=>r["Col4"]},//將模板表格中score對應DataTable中的列Col4 {"result",r=>r["Col5"]}//將模板表格中result對應DataTable中的列Co5 }); formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers); Assert.IsTrue(File.Exists(excelPath)); }
模板如下:
導出結果如下:
2.
/// <summary> /// 測試方法:測試依據模板+List來生成EXCEL /// </summary> [TestMethod] public void TestExportToExcelWithTemplateByList() { List<Student> studentList = GetStudentList();//獲取數據 string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xlsx"; //獲得EXCEL模板路徑 SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//實例化一個局部元素格式化器 partFormatterBuilder.AddFormatter("Title", "跨越IT學員");//將模板表格中Title的值設置為跨越IT學員 formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//實例化一個單元格格式化器 cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//將模板表格中rptdate的值設置為當前日期 formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 //實例化一個表格格式化器,studentList本身就是可枚舉的無需轉換,name表示的模板表格中第一行第一個單元格要填充的數據參數名 TableFormatterBuilder<Student> tableFormatterBuilder = new TableFormatterBuilder<Student>(studentList, "name"); tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<Student, object>>{ {"name",r=>r.Name},//將模板表格中name對應Student對象中的屬性Name {"sex",r=>r.Sex},//將模板表格中sex對應Student對象中的屬性Sex {"km",r=>r.KM},//將模板表格中km對應Student對象中的屬性KM {"score",r=>r.Score},//將模板表格中score對應Student對象中的屬性Score {"result",r=>r.Result}//將模板表格中result對應Student對象中的屬性Result }); formatterContainers.AppendFormatterBuilder(tableFormatterBuilder); string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers); Assert.IsTrue(File.Exists(excelPath)); }
模板同上一個模板
導出結果如下:
3.
/// <summary> /// 測試方法:測試依據模板+DataTable來生成多表格EXCEL(注意:由於ExcelReport框架限制,目前僅支持模板文件格式為:xls) /// </summary> [TestMethod] public void TestExportToRepeaterExcelWithTemplateByDataTable() { DataTable dt = GetDataTable();//獲取數據 string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel2.xls"; //獲得EXCEL模板路徑 SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 //實例化一個可重復表格格式化器,dt.Select()是將DataTable轉換成DataRow[],rpt_begin表示的模板表格開始位置參數名,rpt_end表示的模板表格結束位置參數名 RepeaterFormatterBuilder<DataRow> tableFormatterBuilder = new RepeaterFormatterBuilder<DataRow>(dt.Select(), "rpt_begin", "rpt_end"); tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{ {"sex",r=>r["Col2"]},//將模板表格中sex對應DataTable中的列Col2 {"km",r=>r["Col3"]},//將模板表格中km對應DataTable中的列Col3 {"score",r=>r["Col4"]},//將模板表格中score對應DataTable中的列Col4 {"result",r=>r["Col5"]}//將模板表格中result對應DataTable中的列Co5 }); PartFormatterBuilder<DataRow> partFormatterBuilder2 = new PartFormatterBuilder<DataRow>();//實例化一個可嵌套的局部元素格式化器 partFormatterBuilder2.AddFormatter("name", r => r["Col1"]);//將模板表格中name對應DataTable中的列Col1 tableFormatterBuilder.AppendFormatterBuilder(partFormatterBuilder2);//添加到可重復表格格式化器中,作為其子格式化器 CellFormatterBuilder<DataRow> cellFormatterBuilder = new CellFormatterBuilder<DataRow>();//實例化一個可嵌套的單元格格式化器 cellFormatterBuilder.AddFormatter("rptdate", r => DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//將模板表格中rptdate的值設置為當前日期 tableFormatterBuilder.AppendFormatterBuilder(cellFormatterBuilder);//添加到可重復表格格式化器中,作為其子格式化器 formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "multtable", formatterContainers); Assert.IsTrue(File.Exists(excelPath)); }
模板如下:
導出結果如下:
4.
/// <summary> /// 測試方法:測試依據復雜模板(含固定表格,可重復表格)+DataTable來生成EXCEL (注意:由於ExcelReport框架限制,目前僅支持模板文件格式為:xls) /// </summary> [TestMethod] public void TestExportToExcelWithTemplateByList2() { var schoolLevelList = SchoolLevel.GetList(); var classList = ClassInfo.GetList(); string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb.xls"; //獲得EXCEL模板路徑 SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder(); partFormatterBuilder.AddFormatter("school", "跨越小學"); formatterContainers.AppendFormatterBuilder(partFormatterBuilder); TableFormatterBuilder<SchoolLevel> tableFormatterBuilder = new TableFormatterBuilder<SchoolLevel>(schoolLevelList, "lv");//實例化一個表格格式化器 tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<SchoolLevel, object>> { {"lv",r=>r.LevelName}, //模板參數與數據源SchoolLevel屬性對應關系,下同 {"clscount",r=>r.ClassCount}, {"lvmaster",r=>r.Master} }); formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 RepeaterFormatterBuilder<ClassInfo> repeaterFormatterBuilder = new RepeaterFormatterBuilder<ClassInfo>(classList, "lv_begin", "lv_end");//實例化一個可重復表格格式化器 repeaterFormatterBuilder.AddFormatters(new Dictionary<string, Func<ClassInfo, object>> { {"class",r=>r.ClassName}, //模板參數與數據源ClassInfo屬性對應關系,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,注意只有添加進去了才會生效 string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "school", formatterContainers); Assert.IsTrue(File.Exists(excelPath)); }
模板如下:
導出結果如下:
5.
/// <summary> /// 測試方法:測試依據復雜模板(含固定表格,可重復表格中嵌套表格)+DataTable來生成EXCEL (注意:由於ExcelReport框架限制,目前僅支持模板文件格式為:xls) /// </summary> [TestMethod] public void TestExportToExcelWithTemplateByList3() { var schoolLevelList = SchoolLevel.GetList(); var classList = ClassInfo.GetListWithLevels(); string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb1.xls"; //獲得EXCEL模板路徑 SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder(); partFormatterBuilder.AddFormatter("school", "跨越小學"); formatterContainers.AppendFormatterBuilder(partFormatterBuilder); TableFormatterBuilder<SchoolLevel> tableFormatterBuilder = new TableFormatterBuilder<SchoolLevel>(schoolLevelList, "lv");//實例化一個表格格式化器 tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<SchoolLevel, object>> { {"lv",r=>r.LevelName}, //模板參數與數據源SchoolLevel屬性對應關系,下同 {"clscount",r=>r.ClassCount}, {"lvmaster",r=>r.Master} }); formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 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,注意只有添加進去了才會生效 string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "school", formatterContainers); Assert.IsTrue(File.Exists(excelPath)); }
模板如下:
導出結果如下:
6.
/// <summary> /// 測試方法:測試依據復雜模板(多工作薄,且含固定表格,可重復表格)+DataSet來生成EXCEL,只支持XLS /// </summary> [TestMethod] public void TestExportToExcelWithTemplateByDataSet() { var ds = GetDataSet(); string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb2.xls"; //獲得EXCEL模板路徑 Dictionary<string, SheetFormatterContainer> formatterContainerDic = new Dictionary<string, SheetFormatterContainer>(); //實例化一個模板數據格式化容器數組,包含兩個SheetFormatterContainer用於格式化兩個工作薄 #region 創建第一個工作薄格式化容器,並設置相關參數對應關系 SheetFormatterContainer formatterContainer1 = new SheetFormatterContainer(); PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder(); partFormatterBuilder.AddFormatter("school", "跨越小學"); formatterContainer1.AppendFormatterBuilder(partFormatterBuilder); TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(ds.Tables[0].Select(), "lv");//實例化一個表格格式化器 tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>> { {"lv",r=>r["Col1"]}, //模板參數與數據源DataTable屬性對應關系,下同 {"clscount",r=>r["Col2"]}, {"lvmaster",r=>r["Col3"]} }); formatterContainer1.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 RepeaterFormatterBuilder<DataRow> repeaterFormatterBuilder = new RepeaterFormatterBuilder<DataRow>(ds.Tables[1].Select(), "lv_begin", "lv_end");//實例化一個可重復表格格式化器 repeaterFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>> { {"class",r=>r["Col1"]}, //模板參數與數據源ClassInfo屬性對應關系,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,注意只有添加進去了才會生效 formatterContainerDic.Add("table1", formatterContainer1);//添加到工作薄格式容器數組中,注意此處的Key值為模板上工作薄的名稱,此處即為:table1 #endregion #region 創建第二個工作薄格式化容器,並設置相關參數對應關系 SheetFormatterContainer formatterContainer2 = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 PartFormatterBuilder partFormatterBuilder2 = new PartFormatterBuilder();//實例化一個局部元素格式化器 partFormatterBuilder2.AddFormatter("Title", "跨越IT學員");//將模板表格中Title的值設置為跨越IT學員 formatterContainer2.AppendFormatterBuilder(partFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加進去了才會生效 CellFormatterBuilder cellFormatterBuilder2 = new CellFormatterBuilder();//實例化一個單元格格式化器 cellFormatterBuilder2.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//將模板表格中rptdate的值設置為當前日期 formatterContainer2.AppendFormatterBuilder(cellFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加進去了才會生效 //實例化一個表格格式化器,dt.Select()是將DataTable轉換成DataRow[],name表示的模板表格中第一行第一個單元格要填充的數據參數名 TableFormatterBuilder<DataRow> tableFormatterBuilder2 = new TableFormatterBuilder<DataRow>(ds.Tables[2].Select(), "name"); tableFormatterBuilder2.AddFormatters(new Dictionary<string, Func<DataRow, object>>{ {"name",r=>r["Col1"]},//將模板表格中name對應DataTable中的列Col1 {"sex",r=>r["Col2"]},//將模板表格中sex對應DataTable中的列Col2 {"km",r=>r["Col3"]},//將模板表格中km對應DataTable中的列Col3 {"score",r=>r["Col4"]},//將模板表格中score對應DataTable中的列Col4 {"result",r=>r["Col5"]}//將模板表格中result對應DataTable中的列Co5 }); formatterContainer2.AppendFormatterBuilder(tableFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加進去了才會生效 formatterContainerDic.Add("table2", formatterContainer2);//添加到工作薄格式容器數組中,注意此處的Key值為模板上工作薄的名稱,此處即為:table2 #endregion string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, formatterContainerDic); Assert.IsTrue(File.Exists(excelPath)); }
模板如下:
導出結果如下:
二、ExcelUtility類庫操作說明(嵌入圖片示例)
一、 制作模板(含圖片)
1. 制作模板的文件格式需為兼容格式,即:xls或xlt;
2. 模板變量(或稱為占位符)定義與之前相同,即:$[變量名];
3. 圖片變量定義如下:
a) 繪制一個圖形,圖形形狀盡可能的與要顯示的圖片相同,比如:印章,則可繪制一個圓形;
b) 圖形必需是透明背景,邊框可要可不要,建議留著,這樣後續調整比較方便,如下圖中的藍色透明背景圓形:
c) 圖形大小盡可能與要顯示的圖片大小相同,如下圖示:
由於EXCEL上大小默認采用厘米,而圖片一般采用像素,所以需要自己換算一下像素對應的厘米數(也可將EXCEL計算單位設為像素,方法自行網上查找);也可網上下載單位轉換工具
另外圖形屬性建議設置成如下圖:
溫馨提示:圖形形狀、屬性若未設置一般不影響導出效果,但不排除其它異常情況,圖形大小是一定要設置,且盡可能與要顯示圖形大小(高、寬)相同,否則有可能造成導出變形
代碼示例:
/// <summary> /// 測試方法:測試依據模板+DataTable+圖片來生成包含圖片的EXCEL,只支持XLS /// </summary> [TestMethod] public void TestInsertPic() { DataTable dt = GetDataTable();//獲取數據 string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xls"; //獲得EXCEL模板路徑 SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //實例化一個模板數據格式化容器 PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//實例化一個局部元素格式化器 partFormatterBuilder.AddFormatter("Title", "跨越IT學員");//將模板表格中Title的值設置為跨越IT學員d formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//實例化一個單元格格式化器 cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//將模板表格中rptdate的值設置為當前日期 formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 //實例化一個表格格式化器,dt.Select()是將DataTable轉換成DataRow[],name表示的模板表格中第一行第一個單元格要填充的數據參數名 TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(dt.Select(), "name"); tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{ {"name",r=>r["Col1"]},//將模板表格中name對應DataTable中的列Col1 {"sex",r=>r["Col2"]},//將模板表格中sex對應DataTable中的列Col2 {"km",r=>r["Col3"]},//將模板表格中km對應DataTable中的列Col3 {"score",r=>r["Col4"]},//將模板表格中score對應DataTable中的列Col4 {"result",r=>r["Col5"]}//將模板表格中result對應DataTable中的列Co5 }); formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加進去了才會生效 string picPath = AppDomain.CurrentDomain.BaseDirectory + "\\tz.png";//圖片路徑 PictureWithShapeFormatterBuilder pictureBuilder = new PictureWithShapeFormatterBuilder();//實例化一個圖片關聯圖形格式化器 //pictureBuilder.AddFormatter(picPath);//當sheet中只有一個圖形時,我們可以省略指定區域,那麼默認就是把整個工作薄區域當成一個尋找圖形區域,若sheet中包含多個,則應指定區域,替換成如下語句 pictureBuilder.AddFormatter(picPath,5,60000, 0, 3, false);//第一個參數為圖片路徑,中間4個參數為數字型指定圖形尋找的工作薄區域(行索引,列索引,索引從0開始計),最後一個為是否自適應大小,一般不建議使用,除非壓縮圖片 formatterContainers.AppendFormatterBuilder(pictureBuilder); string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers); Assert.IsTrue(File.Exists(excelPath)); }
模板如下:
注意圖片若需要為透明背景格式,則必需使用PNG格式,NPOI支持的圖片主要格式有:PNG,JPG
導出結果如下:
溫馨提示:
pictureBuilder.AddFormatter(picPath);//當sheet中只有一個圖形時,我們可以省略指定區域,那麼默認就是把整個工作薄區域當成一個尋找圖形區域,若sheet中包含多個,則應指定區域,替換成如下語句
pictureBuilder.AddFormatter(picPath,5,60000, 0, 3, false);//第一個參數為圖片路徑,中間4個參數為數字型指定圖形尋找的工作薄區域(行索引(起止),列索引(起止),索引從0開始計),最後一個為是否自適應大小,一般不建議使用,除非壓縮圖片
如果圖形可能隨單元格進行位置調整,那麼在指定圖形區域時需注意,如果圖形會隨單元格下移,那麼結束行索引(MinRow)就需要指定一個可能的最大值或不指定,如果圖形會隨單元格右移,那麼結束列索引(MinColumn)就需要指定一個可能的最大值或不指定,如果存在多個圖形區域,則上述情況都必需給定具體值(可能的最大值),以免造成區域交叉,從而導致圖片顯示不正確,如下示例:
//圖形可能下移,可能右移,那麼將結束行設為可能最大值:60000,結束列設為可能最大值:255
pictureBuilder.AddFormatter(picPath, 5, 60000, 0, 255, false);
//此處只指定開始行與開始列,與上面差不多,但建議使用上面的用法
pictureBuilder.AddFormatter(new PictureWithShapeInfo(picPath, new SheetRange() {MinRow=5,MinColumn=0 },false));
特別說明:
1.本類庫是基於NPOI+ExcelReport,所有功能凡我的類庫能夠實現的,NPOI與ExcelReport都可以實現,只是用法及復雜程度不同而矣,我封裝的目的就是為了降低大家的學習難度,提高使用效率,免費且開源,源代碼同步更新至開源社區的GIT目錄中,具體地址請看我該系列之前的文章有列出,在此就不再說明。
2.上述圖片關聯圖形顯示功能我是在ExcelReport基礎上增加了一個PictureWithShapeFormatter類及其相關的類:PictureWithShapeInfo、SheetRange,因沒有關聯GIT,所以是在本地更新的,這幾個類的代碼如下:
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("未能獲取到工作薄[{0}]指定區域的圖形對象列表!", 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> /// 圖片關聯圖形信息 /// 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> /// 工作薄區域 /// 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); } } }
分享我基於NPOI+ExcelReport實現的導入與導出EXCEL類庫:ExcelUtility 其它相關文章鏈接:
分享我基於NPOI+ExcelReport實現的導入與導出EXCEL類庫:ExcelUtility分享我基於NPOI+ExcelReport實現的導入與導出EXCEL類庫:ExcelUtility (續篇)