update

Former-commit-id: 483720197ca4fbaace04554c817f8148237fba2a
Former-commit-id: 6da9c8059557c8a5898178a37affac8c677c6cea

labs/Teacher/TeacherExt/Controllers/HomeController.cs

@@ -579,24 +579,25 @@ namespace TeacherExt.Controllers
                     foreach (var head in item.Headers)
                     {
                         var cell = (sheet.GetRow(i)??sheet.CreateRow(i)).CreateCell(colIndex);
-                        cell.SetCellValue(head.Key);
-                        var length = cell.ToString().Split('\n').Select(o => Encoding.UTF8.GetBytes(o).Count()).Max()*256;
-                        if (length>sheet.GetColumnWidthInPixels(colIndex))
-                        {
-                            sheet.SetColumnWidth(colIndex, length);
-                        }
+                        cell.SetStyle(style).SetCellValue(head.Key);
+                        //var length = cell.ToString().Split('\n').Select(o => Encoding.UTF8.GetBytes(o).Count()).Max()*256;
+                        //if (length>sheet.GetColumnWidthInPixels(colIndex))
+                        //{
+                        //    sheet.SetColumnWidth(colIndex, length);
+                        //}
                         if (head.Value>1)
                         {
-                            for (int j = i; j < head.Value; j++)
+                            for (int j = i+1; j < head.Value; j++)
                             {
                                 var row = sheet.GetRow(j) ?? sheet.CreateRow(j);
                                 (row.GetCell(colIndex)??row.CreateCell(colIndex)).SetStyle(style);
                             }
                             sheet.AddMergedRegion(new CellRangeAddress(i,i+head.Value-1,colIndex,colIndex));
                             sheet.GetRow(i).GetCell(colIndex).SetStyle(style);
-                            i = i + head.Value;
                         }
+                        i = i + head.Value;
                     }
+                    //sheet.AutoSizeColumn(colIndex);
                     colIndex += 1;
                 }
             }