Insert data to specific cell in excel C#

Question

I have been looking around checking how to insert/update data into an existing excel spreadsheet into a specific cell. I first came upon this thread :

Insert text in specific cell in Excel c#

Not sure if I read it right but I don't see anything with regards to using a certain excel file. Would I then be using a combination with this kind of code?

http://csharp.net-informations.com/excel/csharp-excel-oledb-update.htm

Sorry if I'm just using links, don't want to clutter this thread with so much code.

Answer 1

I have not gone through the link that you have mentioned in the post. However, if you are looking at writing or updating the value in a particular cell, you can do it using this line of code:

workSheet.Cells[rowIndex, colIndex] = cellValue;

rowIndex and columnIndex are the integer values that represent the index of the row and column of the cell in which you are trying to write/update. cellValue is the value you are trying to write in the cell. This should be a string.

Sample code:

//Create an excel application object
Excel.Application excelAppObj = new Excel.Application();
excelAppObj.DisplayAlerts = false;

//Open the excel work book
Excel.Workbook workBook = excelAppObj.Workbooks.Open(fileName, 0, false, 5, "", "", false, Excel.XlPlatform.xlWindows, "", true, false, 0, false, false);

//Get the first sheet of the selected work book
Excel.Worksheet worksheet = (Excel.Worksheet)workBook.Worksheets.get_Item(1);

//Write 20 in Cell - C3
workSheet.Cells[2, 3] = "20";

//Save work book (.xlsx format)
workBook.SaveAs(fileName, Excel.XlFileFormat.xlOpenXMLWorkbook, null, null, false,
false, Excel.XlSaveAsAccessMode.xlShared, false, false, null, null, null);

//Release resources

Answer 2

试试这个，

worksheet.Cells[rownumber,columnnumber]="value";

Answer 3

在您命名的站点上，还有另一个链接，名为“ 如何使用OLEDB将数据插入Excel” 。

Answer 4

The code in the first link is using Interop to update an Excel file and the second link is using OleDb . You shouldn't really mix the two.

The code from the first one should be easy enough to adjust, you can load a specific excel file by using the Workbooks.Open() method . Changing the line

xlWorkBook = xlApp.Workbooks.Add(misValue);

to

xlWorkBook = xlApp.Workbooks.Open(yourFilename);

Where yourFileName is a string that contains the full path to the Excel file you wish to open should work for you.