How to set “AutoSize” to Excel sheet column? (NPOI)

Question

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

foreach (DataColumn column in dataTable.Columns)
{
         


        

Answer 1

Just to add an extra bit to the answer by YellowFog. I found that I had to add all data to the sheet, then iterate through the columns, setting AutoSizeColumn(idx) for this to work correctly.