Inserting multiple textbox data into an Excel file

Question

I want to write a program that saves the text in textbox to an Excel file using a loop because I want to insert multiple text into Excel. I found codes but it only overwrite

Answer 1

Your main concern is to find the last used row in your excel.

For that you can use

 Excel.Range usedRange = xlWorkSheet .UsedRange;
 Excel.Range _lastCell= usedRange.SpecialCells(Excel.XlCellType.xlCellTypeLastCell,  
 Type.Missing);

  int _lastRow= lastCell.Row; // Gives you the last used row in your Excel sheet
  int _lastCol = lastCell.Column; // Give you the last used column



 _lastRow++; // To get the next row 

    for (int i=_lastRow; i<=_lastrow+6; i++) // Set your i value to _lastRow
    {
        xlWorkSheet.Cells[i, 1] = textBox1.Text;
        xlWorkSheet.Cells[i, 2] = textBox2.Text;
        xlWorkSheet.Cells[i, 3] = textBox3.Text;
        xlWorkSheet.Cells[i, 4] = textBox4.Text;
    }