C＃Excel Interop Shapes.AddPicture图像大小不正确第二次尝试导出到Excel文件后

目前我正在使用Excel.Interop.Shapes.AddPicture方法将图片添加到我的Excel文件中。

最初，所有的工作都很棒，首先编译程序并将其导出到excel中。 但是第二次输出到excel等等，图片变得越来越小随机变大，不跟随我在Excel对象上设置的宽度和高度。

它应该是我出口到Excel的一切，图像大小将是270×198.但是，如果我重新编译程序和导出，第一次导出文件的图像一切都很好，但第二次尝试导出文件等运行程序的图像尺寸会随机变得越来越大。

请告诉我，如果我的出口方法做错了。

这里是我用来导出到Excel的代码：

 private void btnPhotoExcel_Click(object sender, EventArgs e) { Excel.Workbooks objBooks; Excel.Sheets objSheets; Excel._Worksheet objSheet = new Excel.Worksheet(); Excel.Range range; // Getting the location and file name of the excel to save from user. SaveFileDialog saveDialog = new SaveFileDialog(); saveDialog.Filter = "Excel files (*.xlsx)|*.xlsx|All files (*.*)|*.*"; saveDialog.FilterIndex = 2; // Declare of Excel Instance objApp = new Excel.Application(); objBooks = objApp.Workbooks; objBook = objBooks.Add(Type.Missing); objSheets = objBook.Worksheets; List<String> photoList = new List<string>(); List<String> photoDescriptionList = new List<string>(); for (int i = 0; i < photoDataGridView.Rows.Count; i++) { if (photoDataGridView.Rows[i].Cells["Photo Path"].Value != null) { photoList.Add(photoDataGridView.Rows[i].Cells["Photo Path"].Value.ToString()); photoDescriptionList.Add(photoDataGridView.Rows[i].Cells["Photo Descriptions"].Value.ToString()); } } // Check file exist bool isFileExist = false; if (saveDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) { try { if (File.Exists(saveDialog.FileName + ".xlsx")) { DialogResult result = MessageBox.Show("File '" + saveDialog.FileName + ".xlsx" + "' Already Exist.\nAre You Sure To Overwrite?", "Microsoft Excel", MessageBoxButtons.OKCancel); switch (result) { case DialogResult.OK: { isFileExist = false; // Does not exist file. Create new one break; } case DialogResult.Cancel: { isFileExist = true; // User Cancel To Overwrite break; } } } else { isFileExist = false; // Does not exist file. Create new one } if (!isFileExist) { #region Photo Report Export Excel int row = 120; int column = 120; // If got added new column, then need to minus 1 from here // Instantiate Excel and start a new workbook. objSheet = (Excel._Worksheet)objSheets.get_Item(1); objSheet.Name = "Maintenance & Activity Photos"; // Get the range where the starting cell has the address // m_sStartingCell and its dimensions are m_iNumRows x m_iNumCols. range = objSheet.get_Range("A1", Missing.Value); range = range.get_Resize(row, column); // Create an array. string[,] saRet = new string[row + 1, column]; #region Header // Header saRet[0, 0] = "LOJI RAWATAN AIR BANGKAP"; objSheet.get_Range("A1", "C1").Merge(); objSheet.Range["A1", "A1"].Font.Bold = true; objSheet.Range["A1", "A1"].Font.Size = 22; objSheet.Range["A1", "A1"].Font.Color = Color.Blue; objSheet.get_Range("A1", "A1").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter; objSheet.Columns["A"].ColumnWidth += 70; objSheet.get_Range("A1", "A2").Merge(); saRet[2, 0] = "Operation & Maintenance: Harmony Water Sendirian Berhad"; objSheet.Range["A3", "A3"].Font.Size = 12; objSheet.get_Range("A3", "C3").Merge(); objSheet.get_Range("A3", "A3").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter; saRet[2, 3] = "Date: Wednesday, 11 January 2017"; objSheet.Range["A3", "A3"].Font.Size = 12; objSheet.get_Range("A3", "A3").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter; saRet[3, 0] = "Activity & Maintenance Photos"; objSheet.Range["A4", "A4"].Font.Size = 12; objSheet.Range["A4", "A4"].Font.Underline = true; objSheet.get_Range("A4", "B4").Merge(); objSheet.get_Range("A4", "A4").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignRight; #endregion #region Main Content Photo and Description for (int k = 0; k < photoList.Count; k++ ) { string pDescription = photoDescriptionList[k].ToString(); if (pDescription == "") { pDescription = "NULL"; } if (k == 0 || k == 1 || k == 2 || k == 3) // First Page { #region First Page if(k == 0) { // First Page, First Row (Left Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 5, 85, 270, 198); saRet[18, 0] = pDescription; // Picture Description objSheet.Range["A19", "A19"].Font.Size = 10; objSheet.get_Range("A19", "B19").Merge(); objSheet.get_Range("A19", "A19").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; objSheet.get_Range("A1", "A20").Borders.get_Item(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Left objSheet.get_Range("D1", "D20").Borders.get_Item(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Right objSheet.get_Range("A20", "D20").Borders.get_Item(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Bottom } else if(k == 1) { // First Page, First Row (Right Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 420, 85, 270, 198); saRet[18, 2] = pDescription; // Picture Description objSheet.Range["C19", "C19"].Font.Size = 10; objSheet.get_Range("C19", "D19").Merge(); objSheet.get_Range("C19", "C19").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; } else if(k == 2) { // First Page , Second Row (Left Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 5, 330, 270, 198); saRet[34, 0] = pDescription; // Picture Description objSheet.Range["A35", "A35"].Font.Size = 10; objSheet.get_Range("A35", "B35").Merge(); objSheet.get_Range("A35", "A35").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; objSheet.get_Range("A20", "A36").Borders.get_Item(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Left objSheet.get_Range("D20", "D36").Borders.get_Item(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Right objSheet.get_Range("A36", "D36").Borders.get_Item(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Bottom } else if(k == 3) { // First Page, Second Row (Right Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 420, 330, 270, 198); saRet[34, 2] = pDescription; // Picture Description objSheet.Range["C35", "C35"].Font.Size = 10; objSheet.get_Range("C35", "D35").Merge(); objSheet.get_Range("C35", "C35").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; } #endregion } else if (k == 4 || k == 5 || k == 6 || k == 7) // Second Page { #region Second Page if (k == 4) { // Second Page, First Row (Left Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 5, 375 + (1 * 245 - (1 * 5)), 270, 198); saRet[53, 0] = pDescription; // Picture Description objSheet.Range["A54", "A54"].Font.Size = 10; objSheet.get_Range("A54", "B54").Merge(); objSheet.get_Range("A54", "A54").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; objSheet.get_Range("A40", "D40").Borders.get_Item(Excel.XlBordersIndex.xlEdgeTop).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Top objSheet.get_Range("A40", "A55").Borders.get_Item(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Left objSheet.get_Range("D40", "D55").Borders.get_Item(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Right objSheet.get_Range("A55", "D55").Borders.get_Item(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Bottom } else if(k == 5) { // Second Page, First Row (Right Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 420, 375 + (1 * 245 - (1 * 5)), 270, 198); saRet[53, 2] = pDescription; // Picture Description objSheet.Range["C54", "C54"].Font.Size = 10; objSheet.get_Range("C54", "D54").Merge(); objSheet.get_Range("C54", "C54").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; } else if(k == 6) { // Second Page, Second Row (Left Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 5, 375 + (2 * 245 - (2 * 5)), 270, 198); saRet[69, 0] = pDescription; // Picture Description objSheet.Range["A70", "A70"].Font.Size = 10; objSheet.get_Range("A70", "B70").Merge(); objSheet.get_Range("A70", "A70").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; objSheet.get_Range("A55", "A71").Borders.get_Item(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Left objSheet.get_Range("D55", "D71").Borders.get_Item(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Right objSheet.get_Range("A71", "D71").Borders.get_Item(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Bottom } else if(k == 7) { // Second Page, Second Row (Right Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 420, 375 + (2 * 245 - (2 * 5)), 270, 198); saRet[69, 2] = pDescription; // Picture Description objSheet.Range["C70", "C70"].Font.Size = 10; objSheet.get_Range("C70", "D70").Merge(); objSheet.get_Range("C70", "C70").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; } #endregion } else if (k == 8 || k == 9 || k == 10 || k == 11) // Third Page { #region Third Page if (k == 8) { // Third Page, First Row (Left Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 5, 465 + (3 * 245 - (3 * 5)), 270, 198); saRet[91, 0] = pDescription; // Picture Description objSheet.Range["A92", "A92"].Font.Size = 10; objSheet.get_Range("A92", "B92").Merge(); objSheet.get_Range("A92", "A92").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; objSheet.get_Range("A78", "D78").Borders.get_Item(Excel.XlBordersIndex.xlEdgeTop).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Top objSheet.get_Range("A78", "A93").Borders.get_Item(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Left objSheet.get_Range("D78", "D93").Borders.get_Item(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Right objSheet.get_Range("A93", "D93").Borders.get_Item(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Bottom } else if (k == 9) { // Third Page, First Row (Right Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 420, 465 + (3 * 245 - (3 * 5)), 270, 198); saRet[91, 2] = pDescription; // Picture Description objSheet.Range["C92", "C92"].Font.Size = 10; objSheet.get_Range("C92", "D92").Merge(); objSheet.get_Range("C92", "C92").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; } else if (k == 10) { // Third Page, Second Row (Left Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 5, 465 + (4 * 245 - (4 * 5)), 270, 198); saRet[107, 0] = pDescription; // Picture Description objSheet.Range["A108", "A108"].Font.Size = 10; objSheet.get_Range("A108", "B108").Merge(); objSheet.get_Range("A108", "A108").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; objSheet.get_Range("A93", "A109").Borders.get_Item(Excel.XlBordersIndex.xlEdgeLeft).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Left objSheet.get_Range("D93", "D109").Borders.get_Item(Excel.XlBordersIndex.xlEdgeRight).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Right objSheet.get_Range("A109", "D109").Borders.get_Item(Excel.XlBordersIndex.xlEdgeBottom).LineStyle = Excel.XlLineStyle.xlContinuous; // Draw on the Bottom } else if (k == 11) { // Third Page, Second Row (Right Photo) objSheet.Shapes.AddPicture(@"" + photoList[k].ToString(), Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 420, 465 + (4 * 245 - (4 * 5)), 270, 198); saRet[107, 2] = pDescription; // Picture Description objSheet.Range["C108", "C108"].Font.Size = 10; objSheet.get_Range("C108", "D108").Merge(); objSheet.get_Range("C108", "C108").Cells.HorizontalAlignment = Excel.XlHAlign.xlHAlignLeft; } } #endregion } objSheet.Columns["C"].ColumnWidth += 15; // Extend the column "C" Width objSheet.Columns["B"].ColumnWidth = 0; // Hide Column B which is unused #endregion // Draw Border objSheet.get_Range("A1", "D3").Borders.LineStyle = Excel.XlLineStyle.xlContinuous; // Draw header border objSheet.PageSetup.Orientation = Excel.XlPageOrientation.xlLandscape; // Normal Margins objSheet.PageSetup.LeftMargin = objApp.CentimetersToPoints(0.5); objSheet.PageSetup.RightMargin = objApp.CentimetersToPoints(0.5); objSheet.PageSetup.TopMargin = objApp.CentimetersToPoints(0.5); objSheet.PageSetup.BottomMargin = objApp.CentimetersToPoints(0.5); objSheet.PageSetup.HeaderMargin = objApp.CentimetersToPoints(0.5); objSheet.PageSetup.FooterMargin = objApp.CentimetersToPoints(0.5); // Fit Sheet on One Page objSheet.PageSetup.FitToPagesWide = 1; objSheet.PageSetup.FitToPagesTall = 1; // Set the range value to the array. range.set_Value(Missing.Value, saRet); objSheet.Columns.AutoFit(); objApp.DisplayAlerts = false; // Temporary disable the alert box objBook.SaveAs(saveDialog.FileName); MessageBox.Show("Excel File Is Saved At :\n" + saveDialog.FileName, "Success"); #endregion } } catch (Exception theException) { MessageBox.Show(theException.ToString()); MessageBox.Show("Operation Canceled.", "Failed To Save"); } finally { photoList.Clear(); photoDescriptionList.Clear(); objApp.Quit(); objBook = null; objApp = null; // Release All Excel Object releaseObject(objSheet); releaseObject(objSheets); releaseObject(objBook); releaseObject(objBooks); releaseObject(objApp); } } else { MessageBox.Show("Operation Canceled.", "Failed To Save"); } }