I’m working on an SSIS package that pulls data from an SQL table and writes it to an Excel file. While the basic export works fine, the client now wants to insert the data into a new worksheet in an already existing Excel file. My current setup creates the worksheet if it doesn’t exist, but then it ends up looping and failing when the worksheet is detected.
What I’m aiming for is:
Verify whether the Excel file is present.
If the file exists, check for the worksheet.
Create the worksheet and insert data if it’s missing.
If the worksheet is found, log an error and stop the process.
I’m quite new to C# and would appreciate any insights into adjusting my code to avoid the looping issue. Any help would be greatly appreciated!
yo Iris72, have u looked into ExcelDataReader? it’s pretty sweet for dealing w/ existing excel files. u can check if the sheet exists before adding new data. might help avoid that looping issue ur having. just a thought!
For your scenario, I recommend exploring the EPPlus library. It’s a robust .NET library specifically designed for working with Excel files without requiring Microsoft Office to be installed. EPPlus allows you to easily check for existing worksheets, add new ones, and insert data efficiently.
Here’s a general approach using EPPlus:
Load the existing Excel file using FileInfo.
Use ExcelPackage to open the workbook.
Check if the desired worksheet exists using the Workbook.Worksheets collection.
If not present, create the new worksheet and populate it with your SQL data.
If the worksheet already exists, log an error and exit.
This method should help you avoid the looping issue and provide a more streamlined solution for your SSIS package.
hey there! have you tride using the microsoft.office.interop.excel library in c#? its really handy for checking and adding worksheets. ever consider trying another approach like the openxml library? curious to hear your thoughts!