C＃ – Excel / InteropServicesreplace方法遇到问题
所以search已经返回了如何使用Replace方法的一些结果，但我还没有得到任何工作。 希望你们能帮助我指出正确的方向！
这是我的。 我调用Replace方法时出现错误。 我怀疑我正在做一些错误的范围，但我不确定。
private Process DoExcelWork(Process excelProc, string filePath) { // Initialize Excel Application Excel.Application excelApp = new Excel.Application(); excelApp.Visible = false; // Get the process Process[] possibleProcesses = Process.GetProcessesByName("Excel"); excelProc = possibleProcesses[0]; // Empty Object for optional arguments object optional = System.Reflection.Missing.Value; Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(filePath, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional); // Seems to be necessary to do stuff to the file excelWorkbook.VBProject.References.AddFromGuid("{0002E157-0000-0000-C000-000000000046}", 5, 3); foreach (Excel.Worksheet excelWorksheet in excelWorkbook.Worksheets) { Excel.Range lastCell = excelWorksheet.Cells.SpecialCells(Excel.XlCellType.xlCellTypeLastCell, optional); Excel.Range excelRange = excelWorksheet.get_Range("A1", lastCell); excelRange.Replace("Blue", "Red", Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByRows, false, optional, optional, optional); } excelWorkbook.Save(); excelWorkbook.Close(0); // Quit Excel excelApp.Quit(); // Release NAR(excelApp); return excelProc; } 这是错误：
System.Runtime.InteropServices.COMException（0x800706BE）：远程过程调用失败。 （对象什么，对象replace，对象replace，对象对象，Int32 [] aWrapperTypes，MessageData＆msgData）上System.RuntimeType.ForwardCallToInvokeMember（HRESULTexception：0x800706BE） Object LookAt，Object SearchOrder，Object MatchCase，Object MatchByte，Object SearchFormat，Object ReplaceFormat）
所以我从来没有得到这个工作。 我怀疑微软不支持这种服务器端自动化与它有关。
我最终做了一个解决方法，我遍历每个单元格，并手动更新值（如果满足search条件）。 就我而言，我只是在寻找有配方的细胞，所以我也做了其他的事情。 但是这是我最终的结果：
// Initialize Excel Application Excel.Application excelApp = null; excelApp = new Excel.Application(); excelApp.Visible = false; excelApp.DisplayAlerts = false; // Get the process. Not as precise as would like, but probably the best we can get from an .ASP call Process[] possibleProcesses = Process.GetProcessesByName("Excel"); excelProc = possibleProcesses[0]; // Object for optional arguments when creating Excel Workbook object optional = System.Reflection.Missing.Value; Excel.Workbook excelWorkbook = excelApp.Workbooks.Open(filePath, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional, optional); excelWorkbook.CheckCompatibility = false; excelWorkbook.DoNotPromptForConvert = true; // Create array with Custom Properties of workbook dynamic properties = excelWorkbook.CustomDocumentProperties; // Iterate through each worksheet in the workbook foreach (Excel.Worksheet excelWorksheet in excelWorkbook.Worksheets) { // Checking to see if any cells are being used. If no cells are used, setting ACTUAL used range causes an error. if (excelWorksheet.UsedRange.Cells.Count >=1) { try { // Because these sheets have thousands of edited (but unused) cells, can't use UsedRange without major performance issue. Getting last used cell manually. int lastRow = 1; int lastCol = 1; try { lastRow = excelWorksheet.Cells.Find("*", excelWorksheet.get_Range("IV65536", optional), Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlPrevious, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value).Row; lastCol = excelWorksheet.Cells.Find("*", excelWorksheet.get_Range("IV65536", optional), Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByColumns, Excel.XlSearchDirection.xlPrevious, System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value).Column; } catch { } Excel.Range excelRange = excelWorksheet.get_Range(excelWorksheet.Cells[1, 1], excelWorksheet.Cells[lastRow, lastCol]); // Creating array of cells in range, because search operations are faster on array than on cells. dynamic cells = excelRange.Cells; string cellAddress = ""; string cellFormula = ""; string formulaParameter = ""; int parameterLength = 0; // Search array for cells that have functions. If a function exists, replace it with the value that should be returned from the function. foreach (dynamic c in cells) { if (c.HasFormula()) { cellFormula = c.formula; cellAddress = c.address.Replace("$", ""); if ((cellFormula.Length > 50) && (cellFormula.Substring(0, 50) == "=YOURCUSTOMEXCELFUNCTIONHERE")) { // Get custom functions, replace functions with the values returned from those functions parameterLength = cellFormula.Substring(52).Length; formulaParameter = cellFormula.Substring(52, parameterLength - 2); foreach (dynamic p in properties) { if (p.name == formulaParameter) { excelWorksheet.get_Range(cellAddress, optional).Value2 = p.Value; } } } else { // Get non-custom functions, replace functions with the values returned from those functions excelWorksheet.get_Range(cellAddress, optional).Value2 = c.Value2; } } } } catch { } } }