excel-interop

I have a Windows Service that runs the Excel Interop in order to automate the execution of various macros. However, I am running in a peculiar issue when I try to run a macro which access a database using Windows Authentication ... If the macro is run through the Windows Service , the workbook is opened and the macro is execution is started but the application hangs (presumably at the data access portion). If, however, the macro is run through the Visual Studio debugger , using the same implementation as the service (they call the same class library), it executes, saves the workbook, and

I am trying to read an excel spreadsheet into memory but when I use worksheet.UsedRange.Rows.Count, the value return is incorrect. I have 1670 rows of data in my spreadsheet but the row count brings back 694 rows. var excelApp = new Microsoft.Office.Interop.Excel.Application {Visible = false}; var workbook = excelApp.Workbooks.Open(_mirrorFileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); var worksheet = (Worksheet)workbook.Worksheets[1];

I have a bit of code that opens an xls workbook; Excel.Workbooks workBooks; workBooks = excelApp.Workbooks; workbook = workBooks.Open(sourceFilePath + sourceFileName + ".xls"); I then get the work sheet; worksheets = workbook.Worksheets; worksheet = worksheets.get_Item("Standard"); I then save the file as a csv; worksheet.SaveAs(sourceFilePath + sourceFileName + ".csv", Excel.XlFileFormat.xlCSVWindows, Type.Missing, Type.Missing, false, false, Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing); Then I try to close the workbook; Marshal.FinalReleaseComObject

Here I'm opening excel and writing to excel sheet. I'm changing my windows application to asp website and seen this error. I have added all the references and libraries. Don't know what I am missing here. Getting error as mentioned below. Please help me. Excel.Application excel = new Excel.Application(); excel.Visible = false; // to hide the processing Excel.Workbook wb = excel.Workbooks.Add(); Excel.Worksheet sh = wb.Sheets.Add(); // Error at wb sh.Name = "Links"; for (int i = 1; i < list.Count; i++) { sh.Cells[i.ToString(), "A"].Value2 = list[i]; //Error at .Value2 } you have to create a new

I tried to follow How to open an Excel file in C# tutorial, i.e. added a reference on the Com tab to Microsoft Office 14.0 Object Library and tried to compile code: using Excel = Microsoft.Office.Interop.Excel; //... Excel.Application xlApp; Excel.Workbook xlWorkBook; Excel.Worksheet xlWorkSheet; xlApp = new Excel.ApplicationClass();//error here //... and faced a compile-time error, saying There is no constructor defined for Microsoft.Office.Interop.Excel.ApplicationClass type. What am I missing? Try this: Excel._Application xlApp = new Excel.Application(); Use the following to open it: xlApp