c# interop excel：将一维数组写入excel范围

Question

I want to copy an 1D array to a column range in excel. I'm using interop for this purpose.

I have already tried these things:

• range.get_Resize(Ary.Length, 1).Value2 = Ary;
• range.set_Value(Excel.XlRangeValueDataType.xlRangeValueDefault, Ary);
• and as simple as range.Value = Ary;

I have tried using even range.value2 , but these things copy the very first index value in the array to the entire range.

So say suppose, if there are 200 rows in the range and the array contains integers 101-300, than only 101 is copied throughout the range with the above tried methods.

Can anyone please help me with this? It would be more helpful if someone can explain me this strange behavior! Thanks in advance.

Note: I know I can do it through a for loop , but that takes time. I would surely like to know a method which takes less than a minute to iterate a million rows.

Answer 1

I seriously don't know what exactly is wrong with the above methods. But I found the solution:

Excel.Range range = sheetSource.UsedRange.Columns[columnIndx];
range.Value = application.WorksheetFunction.Transpose(Ary);