【小丸类库系列】Excel操作类

  1 using Microsoft.Office.Interop.Excel;
  2 using System;
  3 using System.IO;
  4 using System.Reflection;
  5 
  6 namespace ECIT.ProjectManagementSystem.Common
  7 {
  8     public class ExcelHelper : IDisposable
  9     {
 10         #region 成员变量
 11 
 12         private object missing = Missing.Value;
 13         private Application app;
 14         private Workbook workBook;
 15         public Worksheet workSheet;
 16 
 17         public void setWorkSheet(int i)
 18         {
 19             workSheet = (Worksheet)workBook.Worksheets[i];
 20         }
 21 
 22         #endregion 成员变量
 23 
 24         #region 公共属性
 25 
 26         /// <summary>
 27         /// WorkSheet数量
 28         /// </summary>
 29         public int WorkSheetCount
 30         {
 31             get { return workBook.Sheets.Count; }
 32         }
 33 
 34         #endregion 公共属性
 35 
 36         #region 构造函数
 37 
 38         /// <summary>
 39         /// 构造函数，新建一个工作簿
 40         /// </summary>
 41         public ExcelHelper()
 42         {
 43             app = new Application();
 44             workBook = app.Workbooks.Add(Type.Missing);
 45             workSheet = (Worksheet)app.Worksheets[1];
 46         }
 47 
 48         /// <summary>
 49         /// 构造函数，打开一个已有的工作簿
 50         /// </summary>
 51         /// <param name="fileName">Excel文件名</param>
 52         public ExcelHelper(string fileName)
 53         {
 54             if (!File.Exists(fileName))
 55                 throw new Exception("指定路径的Excel文件不存在！");
 56 
 57             app = new Application();
 58 
 59             workBook = app.Workbooks.Open(fileName,
 60                 Type.Missing, Type.Missing, Type.Missing, Type.Missing,
 61                 Type.Missing, Type.Missing, Type.Missing, Type.Missing,
 62                 Type.Missing, Type.Missing, Type.Missing, Type.Missing);
 63 
 64             workSheet = (Worksheet)app.Worksheets[1];
 65         }
 66 
 67         #endregion 构造函数
 68 
 69         #region 工作表操作
 70 
 71         /// <summary>
 72         /// 删除工作表
 73         /// </summary>
 74         /// <param name="i">工作表的序号</param>
 75         public void RemoveSheet(int i)
 76         {
 77             Worksheet worksheet = (Worksheet)app.Worksheets[i];
 78             app.DisplayAlerts = false;
 79             worksheet.Delete();
 80             app.DisplayAlerts = true;
 81         }
 82 
 83         /// <summary>
 84         /// 增加工作表
 85         /// </summary>
 86         /// <param name="i">工作表的序号</param>
 87         public void AddSheet(int i)
 88         {
 89             app.Worksheets.Add(Type.Missing, Type.Missing, i, XlSheetType.xlWorksheet);
 90         }
 91 
 92         #endregion 工作表操作
 93 
 94         #region 单元格操作
 95 
 96         /// <summary>
 97         /// 获得最大行号
 98         /// </summary>
 99         /// <returns></returns>
100         public int GetUsedRangeRow()
101         {
102             return workSheet.UsedRange.Rows.Count;
103         }
104 
105         /// <summary>
106         /// 获得最大列号
107         /// </summary>
108         /// <returns></returns>
109         public int GetUsedRangeColumn()
110         {
111             return workSheet.UsedRange.Columns.Count;
112         }
113 
114         /// <summary>
115         /// 获取单元格的文本内容
116         /// </summary>
117         /// <param name="row">行号</param>
118         /// <param name="column">列号</param>
119         /// <returns></returns>
120         public string GetCellText(int row, int column)
121         {
122             if (workSheet == null)
123                 return null;
124             Range range = (Range)workSheet.Cells[row, column];
125             string cellContent = (range.Value2 == null) ? "" : range.Text.ToString();
126             return cellContent;
127         }
128 
129         /// <summary>
130         /// 赋值单元格
131         /// </summary>
132         /// <param name="excelRange"></param>
133         /// <param name="value"></param>
134         public void SetValue(ExcelRange excelRange, object value)
135         {
136             workSheet.Range[excelRange.ToString()].Value2 = value;
137         }
138 
139         /// <summary>
140         /// 设置字体大小
141         /// </summary>
142         /// <param name="excelRange"></param>
143         /// <param name="size"></param>
144         public void SetFontSize(ExcelRange excelRange, int size)
145         {
146             workSheet.Range[excelRange.ToString()].Font.Size = size;
147         }
148 
149         /// <summary>
150         /// 设置字体颜色
151         /// </summary>
152         /// <param name="excelRange"></param>
153         /// <param name="color"></param>
154         public void SetFontColor(ExcelRange excelRange, System.Drawing.Color color)
155         {
156             workSheet.Range[excelRange.ToString()].Font.Color = color;
157         }
158 
159         /// <summary>
160         /// 设置单元格背景色
161         /// </summary>
162         /// <param name="excelRange"></param>
163         /// <param name="color"></param>
164         public void SetBackgroundColor(ExcelRange excelRange, System.Drawing.Color color)
165         {
166             workSheet.Range[excelRange.ToString()].Interior.Color = color;
167         }
168 
169         /// <summary>
170         /// 设置字体粗体
171         /// </summary>
172         /// <param name="excelRange"></param>
173         /// <param name="isBold"></param>
174         public void SetFontBold(ExcelRange excelRange, bool isBold)
175         {
176             workSheet.Range[excelRange.ToString()].Font.Bold = isBold;    //设置字体粗体。
177         }
178 
179         /// <summary>
180         /// 设置是否有下划线
181         /// </summary>
182         /// <param name="excelRange"></param>
183         /// <param name="isUnderline"></param>
184         public void SetUnderline(ExcelRange excelRange, bool isUnderline)
185         {
186             workSheet.Range[excelRange.ToString()].Font.Underline = isUnderline;
187         }
188 
189         /// <summary>
190         /// 设置字体
191         /// </summary>
192         /// <param name="excelRange"></param>
193         /// <param name="fontname"></param>
194         public void SetFontName(ExcelRange excelRange, string fontname)
195         {
196             workSheet.Range[excelRange.ToString()].Font.Name = fontname;
197         }
198 
199         /// <summary>
200         /// 设置单元格宽度
201         /// </summary>
202         /// <param name="excelRange"></param>
203         /// <param name="columnwidth"></param>
204         public void SetColumnWidth(ExcelRange excelRange, int columnwidth)
205         {
206             workSheet.Range[excelRange.ToString()].ColumnWidth = columnwidth;
207         }
208 
209         /// <summary>
210         /// 文本自动换行
211         /// </summary>
212         /// <param name="excelRange"></param>
213         /// <param name="isWrapText"></param>
214         public void SetWrapText(ExcelRange excelRange, bool isWrapText)
215         {
216             workSheet.Range[excelRange.ToString()].WrapText = isWrapText;
217         }
218 
219         /// <summary>
220         /// 文本横向对齐方式
221         /// </summary>
222         /// <param name="excelRange"></param>
223         /// <param name="xlHAlign"></param>
224         public void SetHorizontalAlignment(ExcelRange excelRange, XlHAlign xlHAlign)
225         {
226             workSheet.Range[excelRange.ToString()].HorizontalAlignment = xlHAlign;
227         }
228 
229         /// <summary>
230         /// 文本垂直对齐方式
231         /// </summary>
232         /// <param name="excelRange"></param>
233         /// <param name="xlHAlign"></param>
234         public void SetVerticalAlignment(ExcelRange excelRange, XlHAlign xlHAlign)
235         {
236             workSheet.Range[excelRange.ToString()].VerticalAlignment = xlHAlign;
237         }
238 
239         /// <summary>
240         /// 自动调整列宽
241         /// </summary>
242         /// <param name="excelRange"></param>
243         public void FitColumn(ExcelRange excelRange)
244         {
245             workSheet.Range[excelRange.ToString()].EntireColumn.AutoFit();
246         }
247 
248         /// <summary>
249         /// 设置单元格边框
250         /// </summary>
251         /// <param name="excelRange"></param>
252         public void SetBorderAround(ExcelRange excelRange, XlLineStyle LineStyle, XlBorderWeight BorderWeight)
253         {
254             workSheet.Range[excelRange.ToString()].BorderAround(LineStyle, BorderWeight, XlColorIndex.xlColorIndexAutomatic, 15);    //设置区域边框
255         }
256 
257         /// <summary>
258         /// 单元格合并动作
259         /// </summary>
260         /// <param name="excelRange"></param>
261         /// <param name="IsMergeCells"></param>
262         public void MergeCell(ExcelRange excelRange, bool IsMergeCells)
263         {
264             workSheet.Range[excelRange.ToString()].MergeCells = IsMergeCells;
265         }
266 
267         #endregion 单元格操作
268 
269         #region 图表绘制
270 
271         /// <summary>
272         /// 3D柱状图
273         /// </summary>
274         /// <param name="excelRange"></param>
275         /// <param name="left"></param>
276         /// <param name="top"></param>
277         /// <param name="width"></param>
278         /// <param name="height"></param>
279         /// <param name="title"></param>
280         /// <param name="xTitle"></param>
281         /// <param name="yTitle"></param>
282         /// <param name="plotBy">XlRowCol.xlRows=数据系列在一列中 XlRowCol.xlColumns=数据系列在一行中</param>
283         public void Draw3DColumn(ExcelRange excelRange, double left, double top, double width, double height, string title, string xTitle, string yTitle, XlRowCol plotBy)
284         {
285             ChartObjects charts = (ChartObjects)workSheet.ChartObjects(Type.Missing);
286             ChartObject chartObj = charts.Add(left, top, width, height);
287             Chart chart = chartObj.Chart;
288             chart.ChartWizard(workSheet.Range[excelRange.ToString()], XlChartType.xl3DColumn, missing, plotBy, 1, 1, true, title, xTitle, yTitle, 1);
289         }
290 
291         /// <summary>
292         /// 3D柱状图
293         /// </summary>
294         /// <param name="excelRange"></param>
295         /// <param name="startRange"></param>
296         /// <param name="width"></param>
297         /// <param name="height"></param>
298         /// <param name="title"></param>
299         /// <param name="xTitle"></param>
300         /// <param name="yTitle"></param>
301         /// <param name="plotBy">XlRowCol.xlRows=数据系列在一列中 XlRowCol.xlColumns=数据系列在一行中</param>
302         public void Draw3DColumn(ExcelRange excelRange, ExcelRange startRange, double width, double height, string title, string xTitle, string yTitle, XlRowCol plotBy)
303         {
304             Draw3DColumn(excelRange, Convert.ToDouble(workSheet.Range[startRange.ToString()].Left), Convert.ToDouble(workSheet.Range[startRange.ToString()].Top), width, height, title, xTitle, yTitle, plotBy);
305         }
306 
307         /// <summary>
308         /// 3D饼图
309         /// </summary>
310         /// <param name="excelRange"></param>
311         /// <param name="left"></param>
312         /// <param name="top"></param>
313         /// <param name="width"></param>
314         /// <param name="height"></param>
315         /// <param name="title"></param>
316         public void Draw3DPie(ExcelRange excelRange, double left, double top, double width, double height, string title)
317         {
318             ChartObjects charts = (ChartObjects)workSheet.ChartObjects(Type.Missing);
319             ChartObject chartObj = charts.Add(left, top, width, height);
320             Chart chart = chartObj.Chart;
321             chart.ChartWizard(workSheet.Range[excelRange.ToString()], XlChartType.xl3DPie, missing, XlRowCol.xlColumns, 1, 1, true, title, missing, missing, 1);
322         }
323 
324         /// <summary>
325         /// 3D饼图
326         /// </summary>
327         /// <param name="excelRange"></param>
328         /// <param name="startRange"></param>
329         /// <param name="width"></param>
330         /// <param name="height"></param>
331         /// <param name="title"></param>
332         public void Draw3DPie(ExcelRange excelRange, ExcelRange startRange, double width, double height, string title)
333         {
334             Draw3DPie(excelRange, Convert.ToDouble(workSheet.Range[startRange.ToString()].Left), Convert.ToDouble(workSheet.Range[startRange.ToString()].Top), width, height, title);
335         }
336 
337         #endregion 图表绘制
338 
339         #region 文件操作
340 
341         /// <summary>
342         /// 保存文件
343         /// </summary>
344         /// <param name="fileName"></param>
345         public void SaveFile(string fileName)
346         {
347             try
348             {
349                 workBook.RefreshAll();
350                 workBook.SaveAs(fileName, missing, missing, missing, missing, missing, XlSaveAsAccessMode.xlNoChange, missing, missing, missing, missing);
351             }
352             catch (Exception e)
353             {
354                 Console.WriteLine(e);
355                 throw e;
356             }
357         }
358 
359         #endregion 文件操作
360 
361         #region 资源回收
362 
363         private bool disposed = false;
364 
365         ~ExcelHelper()
366         {
367             //必须为false
368             Dispose(false);
369         }
370 
371         public void Dispose()
372         {
373             //必须为true
374             Dispose(true);
375             //通知垃圾回收机制不再调用终结器（析构器）
376             GC.SuppressFinalize(this);
377         }
378 
379         private void Dispose(bool disposing)
380         {
381             if (disposed)
382             {
383                 return;
384             }
385             if (disposing)
386             {
387                 // 清理托管资源
388             }
389 
390             // 清理非托管资源
391             if (app != null)
392             {
393                 app.Quit();
394                 app = null;
395             }
396 
397             GC.Collect();
398             GC.WaitForPendingFinalizers();
399 
400             //让类型知道自己已经被释放
401             disposed = true;
402         }
403 
404         #endregion 资源回收
405     }
406 
407     /// <summary>
408     /// EXCEL单元格操作范围
409     /// </summary>
410     public class ExcelRange
411     {
412         public string RangeString { get; set; }
413 
414         public ExcelRange(string RangeString)
415         {
416             this.RangeString = RangeString;
417         }
418 
419         /// <summary>
420         /// 输入Excel的行号和列号获得范围
421         /// </summary>
422         /// <param name="x">列号</param>
423         /// <param name="y">行号</param>
424         public ExcelRange(int x, int y)
425         {
426             this.RangeString = IntToLetter(x) + y.ToString();
427         }
428 
429         public ExcelRange(int x1, int y1, int x2, int y2)
430         {
431             this.RangeString = IntToLetter(x1) + y1.ToString() + ":" + IntToLetter(x2) + y2.ToString();
432         }
433 
434         public ExcelRange(ExcelRange from, ExcelRange to)
435         {
436             this.RangeString = from.RangeString + ":" + to.RangeString;
437         }
438 
439         static public implicit operator ExcelRange(string value)
440         {
441             return new ExcelRange(value);
442         }
443 
444         static public implicit operator string (ExcelRange ExcelRange)
445         {
446             return ExcelRange.RangeString;
447         }
448 
449         public override string ToString()
450         {
451             return RangeString;
452         }
453 
454         /// <summary>
455         /// 将Excel列的整数索引值转换为字符索引值
456         /// </summary>
457         /// <param name="n"></param>
458         /// <returns></returns>
459         public static string IntToLetter(int n)
460         {
461             if (n > 700)
462                 throw new Exception("索引超出范围，Excel的列索引不能超过700！");
463 
464             int i = Convert.ToInt32(n / 26);
465             int j = n % 26;
466 
467             char c1 = Convert.ToChar(i + 64);
468             char c2 = Convert.ToChar(j + 64);
469 
470             if (n > 26)
471                 return c1.ToString() + c2.ToString();
472             else if (n == 26)
473                 return "Z";
474             else
475                 return c2.ToString();
476         }
477     }
478 }