According to How can columns be set to 'autosize' in Excel documents created with NPOI? I did so:

foreach (DataColumn column in dataTable.Columns)
{
   int rowIndex = 0;
   foreach (DataRow row in dataTable.Rows)
   {
      HSSFRow dataRow = sheet.CreateRow(rowIndex);
      dataRow.CreateCell(column.Ordinal).SetCellValue(row[column].ToString());
      rowIndex++;
   }
      sheet.AutoSizeColumn(column.Ordinal);
 }

But it doesn't work. How to do right?

c# .net excel npoi
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