C＃Excel生成-使用最后一个单元格作为正确数据的第一个单元格进行范围复制（不良行为）

Question

List<someClass> aList = new List<someClass>();

...

XLWorkbook workbook = new XLWorkbook();
IXLWorksheet worksheet = workbook.AddWorksheet("Data");
worksheet.Hide();
workbook.CalculateMode = XLCalculateMode.Manual;

var data = aList.ToArray();
var firstCell = worksheet.Cell(1, 1);
var lastCell = worksheet.Cell(numRows, numColumns); // numRows = 150, numColumns = 8
var writeRange = worksheet.Range(firstCell, lastCell); //firstCell = A1, LastCell = H150
writeRange.Value = data;

workbook.SaveAs(mySavePath);

This bit of code is meant to copy the data in aList into a new excel document, only, instead of starting at cell A1(1,1) and ending at cell H150 it copies the value from cell 1 into all of the cells between A1 and H299, the row values that should be in row 1 into column HO from row 1-150, and finally my correctly grouped data from H150-O299.

Basically, my data starts at the offset of the range instead of filling in the range, and everything above and left of that range is default copied (garbage) data. someClass is just a public class with public fields for ints and strings.

Can anyone tell me why this is happening and how I can correct it?

Answer 1

As a solution, I found that using the same index for first and last cell will properly input my data, however why Range does not work as (assumed) intended has yet to be answered.

var firstCell = worksheet.Cell(1, 1);
var writeRange = worksheet.Range(firstCell, firstCell); //firstCell = A1, LastCell = H150

This will work as intended. I've completely removed lastCell as it is unnecessary.