How do I format my export to excel workbook in microsoft.office.interop.excel?

Question

I have this export function that allows me to export 2 grid views into 2 separated worksheets in one excel.

But my problems are:

1. How can I have a usual

Answer 1

you haven't added worksheet in Workbook

try below code

worksheet = (Excel._Worksheet)oXL.Worksheets.Add();

worksheet.Name = SheetName;

for more info check http://dotnetmentors.com/c-sharp/how-to-export-sql-data-to-excel-using-microsoft-office-interop.aspx

set your headers using rangs

  string[] colNames = new string[gv.Columns.Count];

  int col = 0;

  foreach(gvvolumns dc in GridView.Columns)
    colNames[col++] = dc.ColumnName;

  char lastColumn = (char)(65 + dtProducts.Columns.Count - 1);

  oSheet.get_Range("A1", lastColumn + "1").Value2 = colNames;
  oSheet.get_Range("A1", lastColumn + "1").Font.Bold = true;
  oSheet.get_Range("A1", lastColumn + "1").VerticalAlignment 
        = Excel.XlVAlign.xlVAlignCenter;